{"id":5994,"date":"2025-07-18T08:37:51","date_gmt":"2025-07-18T08:37:51","guid":{"rendered":"https:\/\/www.richconn-cnc.com\/?page_id=5994"},"modified":"2025-07-18T08:37:53","modified_gmt":"2025-07-18T08:37:53","slug":"4140-steel","status":"publish","type":"page","link":"https:\/\/www.richconn-cnc.com\/4140-steel.html","title":{"rendered":"\u00a04140 Steel"},"content":{"rendered":"<section class=\"bg-white py-16\">\n<div class=\"max-w-7xl mx-auto px-4 sm:px-6 lg:px-8\">\n<div class=\"lg:grid lg:grid-cols-2 lg:gap-8 lg:items-center\">\n<div>\n<h1 class=\"text-4xl font-bold text-gray-900 sm:text-5xl\">Custom 4140 Steel Parts Manufacturing<\/h1>\n<p class=\"mt-4 text-xl text-gray-600\">Professional precision CNC machining of 4140 chromium-molybdenum alloy steel parts with exceptional strength, toughness, and wear resistance for demanding industrial applications.<\/p>\n<div class=\"mt-6 flex flex-wrap gap-4\">\n<div class=\"flex items-center text-sm text-gray-600\"><i class=\"fas fa-check-circle text-blue-600 mr-2\">\u00a0<\/i><br \/>\nHigh Strength &amp; Toughness<\/div>\n<div class=\"flex items-center text-sm text-gray-600\"><i class=\"fas fa-check-circle text-blue-600 mr-2\">\u00a0<\/i><br \/>\nExcellent Wear Resistance<\/div>\n<div class=\"flex items-center text-sm text-gray-600\"><i class=\"fas fa-check-circle text-blue-600 mr-2\">\u00a0<\/i><br \/>\nHeat Treatable<\/div>\n<\/div>\n<div class=\"mt-8 flex flex-col sm:flex-row gap-4\"><a class=\"inline-flex items-center justify-center px-6 py-3 border border-transparent text-base font-medium rounded-md text-white bg-blue-600 hover:bg-blue-700\" href=\"#quote\"><br \/>\nGet Quote Now<br \/>\n<i class=\"fas fa-arrow-right ml-2\">\u00a0<\/i><br \/>\n<\/a><br \/>\n<a class=\"inline-flex items-center justify-center px-6 py-3 border border-gray-300 text-base font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50\" href=\"#capabilities\"><br \/>\nView Capabilities<br \/>\n<\/a><\/div>\n<\/div>\n<div class=\"mt-8 lg:mt-0\"><img decoding=\"async\" class=\"w-full rounded-lg shadow-lg\" src=\"https:\/\/www.richconn-cnc.com\/wp-content\/uploads\/2025\/07\/4140-1.jpg\" alt=\"Custom 4140 Steel Parts CNC Machining\" \/><\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"py-16 bg-gray-100\">\n<div class=\"max-w-7xl mx-auto px-4 sm:px-6 lg:px-8\">\n<div class=\"text-center\">\n<h2 class=\"text-3xl font-bold text-gray-900\">4140 Alloy Steel Overview<\/h2>\n<p class=\"mt-4 text-lg text-gray-600\">High-performance chromium-molybdenum alloy steel for demanding applications<\/p>\n<\/div>\n<div class=\"mt-12 grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-8\">\n<div class=\"bg-white p-6 rounded-lg shadow-md\">\n<div class=\"flex items-center mb-4\"><i class=\"fas fa-cog text-blue-600 text-2xl mr-3\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Material Properties<\/h3>\n<\/div>\n<ul class=\"space-y-2 text-gray-600\">\n<li>\u2022 Carbon: 0.38-0.43%<\/li>\n<li>\u2022 Chromium: 0.80-1.10%<\/li>\n<li>\u2022 Molybdenum: 0.15-0.25%<\/li>\n<li>\u2022 Manganese: 0.75-1.00%<\/li>\n<li>\u2022 Silicon: 0.15-0.35%<\/li>\n<\/ul>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md\">\n<div class=\"flex items-center mb-4\"><i class=\"fas fa-hammer text-blue-600 text-2xl mr-3\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Mechanical Properties<\/h3>\n<\/div>\n<ul class=\"space-y-2 text-gray-600\">\n<li>\u2022 Tensile Strength: 655-775 MPa<\/li>\n<li>\u2022 Yield Strength: 415-550 MPa<\/li>\n<li>\u2022 Hardness: 197-235 HB<\/li>\n<li>\u2022 Elongation: 18-22%<\/li>\n<li>\u2022 Impact Resistance: 54-81 J<\/li>\n<\/ul>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md\">\n<div class=\"flex items-center mb-4\"><i class=\"fas fa-shield-alt text-blue-600 text-2xl mr-3\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Key Advantages<\/h3>\n<\/div>\n<ul class=\"space-y-2 text-gray-600\">\n<li>\u2022 High strength-to-weight ratio<\/li>\n<li>\u2022 Excellent toughness<\/li>\n<li>\u2022 Superior wear resistance<\/li>\n<li>\u2022 Good machinability<\/li>\n<li>\u2022 Heat treatment versatility<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section id=\"capabilities\" class=\"py-16 bg-white\">\n<div class=\"max-w-7xl mx-auto px-4 sm:px-6 lg:px-8\">\n<div class=\"text-center\">\n<h2 class=\"text-3xl font-bold text-gray-900\">Manufacturing Capabilities<\/h2>\n<p class=\"mt-4 text-lg text-gray-600\">Advanced CNC machining and precision manufacturing for 4140 steel parts<\/p>\n<\/div>\n<div class=\"mt-12 grid grid-cols-1 md:grid-cols-2 gap-8\">\n<div class=\"bg-gray-50 p-6 rounded-lg\">\n<h3 class=\"text-xl font-semibold text-gray-900 mb-4\">CNC Machining Services<\/h3>\n<div class=\"space-y-4\">\n<div class=\"flex items-start\"><i class=\"fas fa-cube text-blue-600 text-lg mr-3 mt-1\">\u00a0<\/i><\/p>\n<div>\n<h4 class=\"font-semibold text-gray-900\">3-Axis &amp; 5-Axis Milling<\/h4>\n<p class=\"text-gray-600\">Complex geometries and tight tolerances down to \u00b10.005mm<\/p>\n<\/div>\n<\/div>\n<div class=\"flex items-start\"><i class=\"fas fa-sync text-blue-600 text-lg mr-3 mt-1\">\u00a0<\/i><\/p>\n<div>\n<h4 class=\"font-semibold text-gray-900\">CNC Turning &amp; Lathe<\/h4>\n<p class=\"text-gray-600\">Precision cylindrical parts and shaft components<\/p>\n<\/div>\n<\/div>\n<div class=\"flex items-start\"><i class=\"fas fa-cut text-blue-600 text-lg mr-3 mt-1\">\u00a0<\/i><\/p>\n<div>\n<h4 class=\"font-semibold text-gray-900\">Swiss Machining<\/h4>\n<p class=\"text-gray-600\">High-precision small diameter and long parts<\/p>\n<\/div>\n<\/div>\n<div class=\"flex items-start\"><i class=\"fas fa-bolt text-blue-600 text-lg mr-3 mt-1\">\u00a0<\/i><\/p>\n<div>\n<h4 class=\"font-semibold text-gray-900\">Wire EDM<\/h4>\n<p class=\"text-gray-600\">Intricate shapes and precise cutting operations<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"bg-gray-50 p-6 rounded-lg\">\n<h3 class=\"text-xl font-semibold text-gray-900 mb-4\">Heat Treatment Services<\/h3>\n<div class=\"space-y-4\">\n<div class=\"flex items-start\"><i class=\"fas fa-fire text-red-600 text-lg mr-3 mt-1\">\u00a0<\/i><\/p>\n<div>\n<h4 class=\"font-semibold text-gray-900\">Quenching &amp; Tempering<\/h4>\n<p class=\"text-gray-600\">Optimize hardness and toughness balance<\/p>\n<\/div>\n<\/div>\n<div class=\"flex items-start\"><i class=\"fas fa-thermometer-half text-red-600 text-lg mr-3 mt-1\">\u00a0<\/i><\/p>\n<div>\n<h4 class=\"font-semibold text-gray-900\">Annealing<\/h4>\n<p class=\"text-gray-600\">Stress relief and improved machinability<\/p>\n<\/div>\n<\/div>\n<div class=\"flex items-start\"><i class=\"fas fa-balance-scale text-red-600 text-lg mr-3 mt-1\">\u00a0<\/i><\/p>\n<div>\n<h4 class=\"font-semibold text-gray-900\">Normalizing<\/h4>\n<p class=\"text-gray-600\">Uniform grain structure and properties<\/p>\n<\/div>\n<\/div>\n<div class=\"flex items-start\"><i class=\"fas fa-adjust text-red-600 text-lg mr-3 mt-1\">\u00a0<\/i><\/p>\n<div>\n<h4 class=\"font-semibold text-gray-900\">Stress Relieving<\/h4>\n<p class=\"text-gray-600\">Dimensional stability and reduced residual stress<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"py-16 bg-gray-100\">\n<div class=\"max-w-7xl mx-auto px-4 sm:px-6 lg:px-8\">\n<div class=\"text-center\">\n<h2 class=\"text-3xl font-bold text-gray-900\">Surface Finishing Options<\/h2>\n<p class=\"mt-4 text-lg text-gray-600\">Comprehensive surface treatments for enhanced performance<\/p>\n<\/div>\n<div class=\"mt-12 grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6\">\n<div class=\"bg-white p-6 rounded-lg shadow-md text-center\"><i class=\"fas fa-gem text-blue-600 text-3xl mb-4\">\u00a0<\/i><\/p>\n<h3 class=\"text-lg font-semibold text-gray-900\">Precision Grinding<\/h3>\n<p class=\"text-gray-600 mt-2\">Ra 0.1-0.8 \u03bcm surface finish<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md text-center\"><i class=\"fas fa-paint-brush text-blue-600 text-3xl mb-4\">\u00a0<\/i><\/p>\n<h3 class=\"text-lg font-semibold text-gray-900\">Coating &amp; Plating<\/h3>\n<p class=\"text-gray-600 mt-2\">Zinc, nickel, and chrome plating<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md text-center\"><i class=\"fas fa-fire-alt text-blue-600 text-3xl mb-4\">\u00a0<\/i><\/p>\n<h3 class=\"text-lg font-semibold text-gray-900\">Nitriding<\/h3>\n<p class=\"text-gray-600 mt-2\">Enhanced surface hardness and wear resistance<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md text-center\"><i class=\"fas fa-polish text-blue-600 text-3xl mb-4\">\u00a0<\/i><\/p>\n<h3 class=\"text-lg font-semibold text-gray-900\">Polishing<\/h3>\n<p class=\"text-gray-600 mt-2\">Mirror finish and aesthetic enhancement<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md text-center\"><i class=\"fas fa-spray-can text-blue-600 text-3xl mb-4\">\u00a0<\/i><\/p>\n<h3 class=\"text-lg font-semibold text-gray-900\">Powder Coating<\/h3>\n<p class=\"text-gray-600 mt-2\">Durable protective finish<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md text-center\"><i class=\"fas fa-tools text-blue-600 text-3xl mb-4\">\u00a0<\/i><\/p>\n<h3 class=\"text-lg font-semibold text-gray-900\">Passivation<\/h3>\n<p class=\"text-gray-600 mt-2\">Corrosion resistance improvement<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"py-16 bg-white\">\n<div class=\"max-w-7xl mx-auto px-4 sm:px-6 lg:px-8\">\n<div class=\"text-center\">\n<h2 class=\"text-3xl font-bold text-gray-900\">Industries &amp; Applications<\/h2>\n<p class=\"mt-4 text-lg text-gray-600\">4140 steel parts serving diverse industrial sectors<\/p>\n<\/div>\n<div class=\"mt-12 grid grid-cols-1 md:grid-cols-2 gap-8\">\n<div class=\"bg-gray-50 p-6 rounded-lg\">\n<div class=\"flex items-center mb-4\"><i class=\"fas fa-car text-blue-600 text-2xl mr-3\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Automotive Industry<\/h3>\n<\/div>\n<ul class=\"space-y-2 text-gray-600\">\n<li>\u2022 Crankshafts and connecting rods<\/li>\n<li>\u2022 Transmission gears and shafts<\/li>\n<li>\u2022 Suspension components<\/li>\n<li>\u2022 Axle and drive shaft parts<\/li>\n<li>\u2022 Engine mounting brackets<\/li>\n<li>\u2022 Brake components<\/li>\n<\/ul>\n<\/div>\n<div class=\"bg-gray-50 p-6 rounded-lg\">\n<div class=\"flex items-center mb-4\"><i class=\"fas fa-plane text-blue-600 text-2xl mr-3\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Aerospace Industry<\/h3>\n<\/div>\n<ul class=\"space-y-2 text-gray-600\">\n<li>\u2022 Landing gear components<\/li>\n<li>\u2022 Engine mount structures<\/li>\n<li>\u2022 Actuator components<\/li>\n<li>\u2022 Structural fasteners<\/li>\n<li>\u2022 Hydraulic system parts<\/li>\n<li>\u2022 Control surface hinges<\/li>\n<\/ul>\n<\/div>\n<div class=\"bg-gray-50 p-6 rounded-lg\">\n<div class=\"flex items-center mb-4\"><i class=\"fas fa-oil-can text-blue-600 text-2xl mr-3\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Oil &amp; Gas Industry<\/h3>\n<\/div>\n<ul class=\"space-y-2 text-gray-600\">\n<li>\u2022 Drill collar and tool joints<\/li>\n<li>\u2022 Valve bodies and stems<\/li>\n<li>\u2022 Pump shafts and impellers<\/li>\n<li>\u2022 Pressure vessel components<\/li>\n<li>\u2022 Pipeline fittings<\/li>\n<li>\u2022 Downhole equipment parts<\/li>\n<\/ul>\n<\/div>\n<div class=\"bg-gray-50 p-6 rounded-lg\">\n<div class=\"flex items-center mb-4\"><i class=\"fas fa-industry text-blue-600 text-2xl mr-3\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Industrial Equipment<\/h3>\n<\/div>\n<ul class=\"space-y-2 text-gray-600\">\n<li>\u2022 Machine tool components<\/li>\n<li>\u2022 Hydraulic cylinder parts<\/li>\n<li>\u2022 Gear boxes and couplings<\/li>\n<li>\u2022 Pump and compressor parts<\/li>\n<li>\u2022 Die and mold components<\/li>\n<li>\u2022 Mining equipment parts<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"py-16 bg-gray-100\">\n<div class=\"max-w-7xl mx-auto px-4 sm:px-6 lg:px-8\">\n<div class=\"text-center\">\n<h2 class=\"text-3xl font-bold text-gray-900\">Quality Standards &amp; Certifications<\/h2>\n<p class=\"mt-4 text-lg text-gray-600\">Rigorous quality control ensuring superior 4140 steel parts<\/p>\n<\/div>\n<div class=\"mt-12 grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-8\">\n<div class=\"bg-white p-6 rounded-lg shadow-md\">\n<div class=\"flex items-center mb-4\"><i class=\"fas fa-certificate text-green-600 text-2xl mr-3\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">ISO 9001:2015<\/h3>\n<\/div>\n<p class=\"text-gray-600\">Quality management system certification ensuring consistent manufacturing processes and customer satisfaction.<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md\">\n<div class=\"flex items-center mb-4\"><i class=\"fas fa-flask text-green-600 text-2xl mr-3\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Material Testing<\/h3>\n<\/div>\n<p class=\"text-gray-600\">Comprehensive chemical analysis, mechanical testing, and material certification for every batch.<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md\">\n<div class=\"flex items-center mb-4\"><i class=\"fas fa-ruler text-green-600 text-2xl mr-3\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Dimensional Inspection<\/h3>\n<\/div>\n<p class=\"text-gray-600\">CMM measurement and precision gauging ensuring tight tolerances and dimensional accuracy.<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md\">\n<div class=\"flex items-center mb-4\"><i class=\"fas fa-search text-green-600 text-2xl mr-3\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Surface Quality<\/h3>\n<\/div>\n<p class=\"text-gray-600\">Surface finish verification, roughness measurement, and visual inspection protocols.<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md\">\n<div class=\"flex items-center mb-4\"><i class=\"fas fa-file-alt text-green-600 text-2xl mr-3\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Documentation<\/h3>\n<\/div>\n<p class=\"text-gray-600\">Complete traceability records, material certificates, and inspection reports for every part.<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md\">\n<div class=\"flex items-center mb-4\"><i class=\"fas fa-shipping-fast text-green-600 text-2xl mr-3\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Packaging &amp; Delivery<\/h3>\n<\/div>\n<p class=\"text-gray-600\">Protective packaging and careful handling ensuring parts arrive in perfect condition.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"py-16 bg-white\">\n<div class=\"max-w-7xl mx-auto px-4 sm:px-6 lg:px-8\">\n<div class=\"lg:grid lg:grid-cols-2 lg:gap-8 lg:items-center\">\n<div>\n<h2 class=\"text-3xl font-bold text-gray-900\">About Richconn<\/h2>\n<p class=\"mt-4 text-lg text-gray-600\">Leading Chinese manufacturer specializing in precision 4140 steel parts with advanced CNC machining capabilities and comprehensive quality control systems.<\/p>\n<div class=\"mt-6 space-y-4\">\n<div class=\"flex items-start\"><i class=\"fas fa-check-circle text-green-600 text-lg mr-3 mt-1\">\u00a0<\/i><\/p>\n<div>\n<h3 class=\"font-semibold text-gray-900\">Manufacturing Excellence<\/h3>\n<p class=\"text-gray-600\">State-of-the-art facility with advanced CNC equipment and skilled technicians.<\/p>\n<\/div>\n<\/div>\n<div class=\"flex items-start\"><i class=\"fas fa-check-circle text-green-600 text-lg mr-3 mt-1\">\u00a0<\/i><\/p>\n<div>\n<h3 class=\"font-semibold text-gray-900\">Cost-Effective Solutions<\/h3>\n<p class=\"text-gray-600\">Competitive pricing without compromising quality or delivery times.<\/p>\n<\/div>\n<\/div>\n<div class=\"flex items-start\"><i class=\"fas fa-check-circle text-green-600 text-lg mr-3 mt-1\">\u00a0<\/i><\/p>\n<div>\n<h3 class=\"font-semibold text-gray-900\">Global Service<\/h3>\n<p class=\"text-gray-600\">Serving customers worldwide with reliable shipping and customer support.<\/p>\n<\/div>\n<\/div>\n<div class=\"flex items-start\"><i class=\"fas fa-check-circle text-green-600 text-lg mr-3 mt-1\">\u00a0<\/i><\/p>\n<div>\n<h3 class=\"font-semibold text-gray-900\">Quality Commitment<\/h3>\n<p class=\"text-gray-600\">ISO 9001:2015 certified with rigorous quality control processes.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"mt-8\"><a class=\"inline-flex items-center px-6 py-3 border border-transparent text-base font-medium rounded-md text-white bg-blue-600 hover:bg-blue-700\" href=\"#quote\"><br \/>\nStart Your Project<br \/>\n<i class=\"fas fa-arrow-right ml-2\">\u00a0<\/i><br \/>\n<\/a><\/div>\n<\/div>\n<div class=\"mt-8 lg:mt-0\"><img decoding=\"async\" class=\"w-full rounded-lg shadow-lg\" src=\"https:\/\/www.richconn-cnc.com\/wp-content\/uploads\/2024\/08\/cnc-machining-factory.jpg\" alt=\"Richconn CNC Machining Factory\" \/><\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"py-16 bg-gray-100\">\n<div class=\"max-w-7xl mx-auto px-4 sm:px-6 lg:px-8\">\n<div class=\"text-center\">\n<h2 class=\"text-3xl font-bold text-gray-900\">Why Choose 4140 Steel?<\/h2>\n<p class=\"mt-4 text-lg text-gray-600\">Superior performance characteristics for demanding applications<\/p>\n<\/div>\n<div class=\"mt-12 grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-8\">\n<div class=\"bg-white p-6 rounded-lg shadow-md text-center\"><i class=\"fas fa-dumbbell text-blue-600 text-4xl mb-4\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">High Strength<\/h3>\n<p class=\"text-gray-600 mt-2\">Excellent tensile and yield strength for heavy-duty applications requiring structural integrity.<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md text-center\"><i class=\"fas fa-hammer text-blue-600 text-4xl mb-4\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Impact Resistance<\/h3>\n<p class=\"text-gray-600 mt-2\">Superior toughness and impact resistance for components subject to dynamic loads.<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md text-center\"><i class=\"fas fa-shield-alt text-blue-600 text-4xl mb-4\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Wear Resistance<\/h3>\n<p class=\"text-gray-600 mt-2\">Exceptional wear resistance extending component life in abrasive environments.<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md text-center\"><i class=\"fas fa-fire text-blue-600 text-4xl mb-4\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Heat Treatable<\/h3>\n<p class=\"text-gray-600 mt-2\">Versatile heat treatment options to optimize properties for specific applications.<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md text-center\"><i class=\"fas fa-cogs text-blue-600 text-4xl mb-4\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Machinability<\/h3>\n<p class=\"text-gray-600 mt-2\">Good machinability in annealed condition enabling efficient manufacturing processes.<\/p>\n<\/div>\n<div class=\"bg-white p-6 rounded-lg shadow-md text-center\"><i class=\"fas fa-dollar-sign text-blue-600 text-4xl mb-4\">\u00a0<\/i><\/p>\n<h3 class=\"text-xl font-semibold text-gray-900\">Cost Effective<\/h3>\n<p class=\"text-gray-600 mt-2\">Optimal balance of performance and cost for demanding applications.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section id=\"quote\" class=\"py-16 bg-blue-600\">\n<div class=\"max-w-7xl mx-auto px-4 sm:px-6 lg:px-8\">\n<div class=\"text-center\">\n<h2 class=\"text-3xl font-bold text-white\">Get Your Custom 4140 Steel Parts Quote<\/h2>\n<p class=\"mt-4 text-xl text-blue-100\">Fast turnaround, competitive pricing, and superior quality<\/p>\n<\/div>\n<div class=\"mt-12 lg:grid lg:grid-cols-2 lg:gap-8\">\n<div class=\"bg-white p-8 rounded-lg shadow-lg\">\n<h3 class=\"text-2xl font-bold text-gray-900 mb-6\">Request Quote<\/h3>\n\t\t<div data-elementor-type=\"section\" data-elementor-id=\"5967\" class=\"elementor elementor-5967\" data-elementor-post-type=\"elementor_library\">\n\t\t\t<div class=\"elementor-element elementor-element-114d785 e-flex e-con-boxed e-con e-parent\" data-id=\"114d785\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7db08d5 elementor-button-align-center elementor-widget elementor-widget-form\" data-id=\"7db08d5\" data-element_type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"Request a quote Now!\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"5967\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"7db08d5\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"Custom 6061-T6 Parts - Richconn\" \/>\n\n\t\t\t\t\t\t\t<input type=\"hidden\" name=\"queried_id\" value=\"5991\"\/>\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-name elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-name\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tName\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[name]\" id=\"form-field-name\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Name\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-50 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tEmail\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Email\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-field_f674d38 elementor-col-50\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_f674d38\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tPhone\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[field_f674d38]\" id=\"form-field-field_f674d38\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Phone\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tProject Description\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"6\" placeholder=\"Please include: Process, Material, Quantity, Surface Finishing\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-upload elementor-field-group elementor-column elementor-field-group-field_c2370ab elementor-col-100\">\n\t\t\t\t\t\t\t<input type=\"file\" name=\"form_fields[field_c2370ab][]\" id=\"form-field-field_c2370ab\" class=\"elementor-field elementor-size-sm  elementor-upload-field\" multiple=\"multiple\" data-maxsize=\"20\" data-maxsize-message=\"This file exceeds the maximum allowed size.\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-field_643433c elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[field_643433c]\" id=\"form-field-field_643433c\" class=\"elementor-field elementor-size-sm  elementor-field-textual\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Send<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"mt-8 lg:mt-0\">\n<div class=\"bg-white p-8 rounded-lg shadow-lg\">\n<h3 class=\"text-2xl font-bold text-gray-900 mb-6\">Contact Information<\/h3>\n<div class=\"space-y-4\">\n<div class=\"flex items-center\"><i class=\"fas fa-phone text-blue-600 text-lg mr-3\">\u00a0<\/i><\/p>\n<div>\n<p class=\"text-sm text-gray-600\">Phone<\/p>\n<p class=\"text-lg font-semibold text-gray-900\">+86-0755-28025755<\/p>\n<\/div>\n<\/div>\n<div class=\"flex items-center\"><i class=\"fas fa-envelope text-blue-600 text-lg mr-3\">\u00a0<\/i><\/p>\n<div>\n<p class=\"text-sm text-gray-600\">Email<\/p>\n<p class=\"text-lg font-semibold text-gray-900\"><a class=\"text-blue-600 hover:text-blue-700\" href=\"mailto:sales@richconn.com.cn\">sales@richconn.com.cn<\/a><\/p>\n<\/div>\n<\/div>\n<div class=\"flex items-start\"><i class=\"fas fa-map-marker-alt text-blue-600 text-lg mr-3 mt-1\">\u00a0<\/i><\/p>\n<div>\n<p class=\"text-sm text-gray-600\">Address<\/p>\n<p class=\"text-lg font-semibold text-gray-900\">Intersection of Longhua Meilong Road and Donghuanyi Road, Songhe Community, Longhua Street, Longhua District, Shenzhen, GuangDong, China<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"mt-8 p-4 bg-blue-50 rounded-lg\">\n<h4 class=\"font-semibold text-gray-900 mb-2\">Why Choose Richconn?<\/h4>\n<ul class=\"text-sm text-gray-600 space-y-1\">\n<li>\u2022 Fast quote response within 24 hours<\/li>\n<li>\u2022 Competitive pricing for global market<\/li>\n<li>\u2022 ISO 9001:2015 certified quality<\/li>\n<li>\u2022 Experienced in international shipping<\/li>\n<li>\u2022 Technical support and engineering assistance<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Custom 4140 Steel Parts Manufacturing Professional precision CNC machining of 4140 chromium-molybdenum alloy steel parts with exceptional strength, toughness, and wear resistance for demanding industrial applications. \u00a0 High Strength &amp; Toughness \u00a0 Excellent Wear Resistance \u00a0 Heat Treatable Get Quote Now \u00a0 View Capabilities 4140 Alloy Steel Overview High-performance chromium-molybdenum alloy steel for demanding applications [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-5994","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Custom 4140 Steel Parts - Richconn<\/title>\n<meta name=\"description\" content=\"Professional custom 4140 steel parts manufacturing with precision CNC machining, exceptional strength and toughness for automotive, aerospace, and industrial applications\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.richconn-cnc.com\/4140-steel.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Custom 4140 Steel Parts - Richconn\" \/>\n<meta property=\"og:description\" content=\"Professional custom 4140 steel parts manufacturing with precision CNC machining, exceptional strength and toughness for automotive, aerospace, and industrial applications\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.richconn-cnc.com\/4140-steel.html\" \/>\n<meta property=\"og:site_name\" content=\"Richconn\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-18T08:37:53+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.richconn-cnc.com\/wp-content\/uploads\/2025\/07\/4140-1.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.richconn-cnc.com\/4140-steel.html\",\"url\":\"https:\/\/www.richconn-cnc.com\/4140-steel.html\",\"name\":\"Custom 4140 Steel Parts - Richconn\",\"isPartOf\":{\"@id\":\"https:\/\/www.richconn-cnc.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.richconn-cnc.com\/4140-steel.html#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.richconn-cnc.com\/4140-steel.html#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.richconn-cnc.com\/wp-content\/uploads\/2025\/07\/4140-1.jpg\",\"datePublished\":\"2025-07-18T08:37:51+00:00\",\"dateModified\":\"2025-07-18T08:37:53+00:00\",\"description\":\"Professional custom 4140 steel parts manufacturing with precision CNC machining, exceptional strength and toughness for automotive, aerospace, and industrial applications\",\"breadcrumb\":{\"@id\":\"https:\/\/www.richconn-cnc.com\/4140-steel.html#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.richconn-cnc.com\/4140-steel.html\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.richconn-cnc.com\/4140-steel.html#primaryimage\",\"url\":\"https:\/\/www.richconn-cnc.com\/wp-content\/uploads\/2025\/07\/4140-1.jpg\",\"contentUrl\":\"https:\/\/www.richconn-cnc.com\/wp-content\/uploads\/2025\/07\/4140-1.jpg\",\"width\":755,\"height\":716},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.richconn-cnc.com\/4140-steel.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.richconn-cnc.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u00a04140 Steel\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.richconn-cnc.com\/#website\",\"url\":\"https:\/\/www.richconn-cnc.com\/\",\"name\":\"Richconn\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.richconn-cnc.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Custom 4140 Steel Parts - Richconn","description":"Professional custom 4140 steel parts manufacturing with precision CNC machining, exceptional strength and toughness for automotive, aerospace, and industrial applications","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.richconn-cnc.com\/4140-steel.html","og_locale":"en_US","og_type":"article","og_title":"Custom 4140 Steel Parts - Richconn","og_description":"Professional custom 4140 steel parts manufacturing with precision CNC machining, exceptional strength and toughness for automotive, aerospace, and industrial applications","og_url":"https:\/\/www.richconn-cnc.com\/4140-steel.html","og_site_name":"Richconn","article_modified_time":"2025-07-18T08:37:53+00:00","og_image":[{"url":"https:\/\/www.richconn-cnc.com\/wp-content\/uploads\/2025\/07\/4140-1.jpg","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.richconn-cnc.com\/4140-steel.html","url":"https:\/\/www.richconn-cnc.com\/4140-steel.html","name":"Custom 4140 Steel Parts - Richconn","isPartOf":{"@id":"https:\/\/www.richconn-cnc.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.richconn-cnc.com\/4140-steel.html#primaryimage"},"image":{"@id":"https:\/\/www.richconn-cnc.com\/4140-steel.html#primaryimage"},"thumbnailUrl":"https:\/\/www.richconn-cnc.com\/wp-content\/uploads\/2025\/07\/4140-1.jpg","datePublished":"2025-07-18T08:37:51+00:00","dateModified":"2025-07-18T08:37:53+00:00","description":"Professional custom 4140 steel parts manufacturing with precision CNC machining, exceptional strength and toughness for automotive, aerospace, and industrial applications","breadcrumb":{"@id":"https:\/\/www.richconn-cnc.com\/4140-steel.html#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.richconn-cnc.com\/4140-steel.html"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.richconn-cnc.com\/4140-steel.html#primaryimage","url":"https:\/\/www.richconn-cnc.com\/wp-content\/uploads\/2025\/07\/4140-1.jpg","contentUrl":"https:\/\/www.richconn-cnc.com\/wp-content\/uploads\/2025\/07\/4140-1.jpg","width":755,"height":716},{"@type":"BreadcrumbList","@id":"https:\/\/www.richconn-cnc.com\/4140-steel.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.richconn-cnc.com\/"},{"@type":"ListItem","position":2,"name":"\u00a04140 Steel"}]},{"@type":"WebSite","@id":"https:\/\/www.richconn-cnc.com\/#website","url":"https:\/\/www.richconn-cnc.com\/","name":"Richconn","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.richconn-cnc.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.richconn-cnc.com\/wp-json\/wp\/v2\/pages\/5994","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.richconn-cnc.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.richconn-cnc.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.richconn-cnc.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.richconn-cnc.com\/wp-json\/wp\/v2\/comments?post=5994"}],"version-history":[{"count":1,"href":"https:\/\/www.richconn-cnc.com\/wp-json\/wp\/v2\/pages\/5994\/revisions"}],"predecessor-version":[{"id":5996,"href":"https:\/\/www.richconn-cnc.com\/wp-json\/wp\/v2\/pages\/5994\/revisions\/5996"}],"wp:attachment":[{"href":"https:\/\/www.richconn-cnc.com\/wp-json\/wp\/v2\/media?parent=5994"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}