Machined 40Cr Steel Component, Enhanced with Heat Treatment & Grinding Finish

The Application of Alloy Steel Custom Components

Automobile manufacturing

Alloy steel parts have extensive applications in automobile manufacturing. Alloy carburized steel, for example, is used to make parts that are subjected to dynamic and heavy loads, such as gears in automotive gearboxes and rear axles, which require a surface with high hardness and wear resistance, and a core with high strength and toughness ‌. In addition, SNCM23H alloy steel is commonly used to make automotive transmission components to ensure the reliability and durability of transmissions under high frequency of use and high load conditions ‌.

Mechanical manufacturing

In the field of mechanical manufacturing, alloy steel parts also have important applications. Alloy structural steels such as 16Mn, 20CrMnTi, etc., are often used to make engineering structural components and mechanical parts that bear heavy loads and have strict strength requirements ‌. Alloy tool steels such as 9Mn2V, 9SiCr, etc., are suitable for making molds with complex shapes and large dimensions, as well as cutting tools and measuring tools for high-speed cutting ‌.

The energy, chemical and oil and gas industries

In the energy, chemical and oil and gas industries, alloy steel parts also have important applications. For example, 10CrMo9 steel plate, due to its excellent performance, is widely used to make critical components such as superheaters, reheater pipes and collectors of power plant boilers, which are exposed to high temperature and high pressure for a long time ‌. In addition, alloy steel is used to make a wide range of equipment such as pipes, valves and storage tanks that are corrosion-resistant and heat-resistant ‌.

Aerospace

In the aerospace field, special performance steels such as stainless steel, heat-resistant steel and wear-resistant steel also have important applications. Stainless steel, such as grades 1Cr18Ni9Ti and 3Cr13, is commonly used to make components that work in highly corrosive media, such as tower parts, pipes and containers ‌.

All of our CNC precision machined alloy steel parts are customized according to customer drawings or designs. Belows are our work chart for the non-standard metal parts:

 

Advantages of Machined Alloy Steel Component:

• Superior Material & Performance

  - High-grade 40Cr alloy steel ensures exceptional tensile strength, wear resistance, and fatigue durability, ideal for high-stress, high-cycle applications.  

  - Precision heat treatment (quenching & tempering) optimizes hardness (HRC 35-45) while retaining core toughness for long-term reliability.  

• Advanced Precision Manufacturing

  - State-of-the-art CNC machining guarantees tight tolerances and flawless dimensional accuracy.  

  - Post-treatment grinding achieves ultra-smooth surface finishes (Ra ≤0.8μm), reducing friction and wear in critical assemblies.  

• Customization & Flexibility

  - Tailored solutions for complex geometries, surface treatments, or specific performance requirements (e.g., nitriding, coating).  

  - Scalable production capacity to meet both prototyping and bulk-order demands.  

• Technical Expertise & Support

  - Decades of experience in metallurgy and precision engineering, offering end-to-end guidance from design optimization to post-processing.  

  - Dedicated engineering team for rapid troubleshooting, cost-saving redesigns, and technical documentation.  

• Reliable Supply Chain
  

  - Streamlined logistics with on-time delivery commitments, backed by robust inventory management and risk-mitigation strategies.  

By partnering with us, you gain a seamless blend of technical excellence, quality assurance, and responsive service—ensuring your projects meet deadlines, budgets, and performance targets.

Packaging:

FAQ:

1Q: What certifications do your products and processes comply with?

1A: Our components meet ISO 9001 quality standards, with material traceability, hardness testing (HRC 35-45), and full dimensional inspection reports. Third-party certifications (e.g., RoHS, material test reports) are available upon request.  

2Q: How do you ensure the durability and performance of 40Cr steel components?

2A: Precision heat treatment (quenching & tempering) optimizes hardness-to-toughness balance, while grinding ensures surface finish (Ra ≤0.8μm) and tight tolerances (IT6-IT7). We validate performance via fatigue testing, wear resistance checks, and load simulations.  

3Q: Can you accommodate custom specifications or unique design requirements?

  3A: Yes. We offer tailored solutions for dimensions, surface treatments (e.g., nitriding, coatings), and performance enhancements. Our engineering team collaborates closely with clients to optimize designs for cost, function, and manufacturability.  

4Q: What is your typical lead time, and how do you handle urgent orders?

  4A: Standard lead time is 4-6 weeks for bulk orders, with expedited options (2-3 weeks) for urgent needs. We maintain flexible production scheduling and buffer stock for critical materials to minimize delays.  

5Q: Do you provide post-sales support or warranty for defects?

  5A: We offer a 12-month warranty against manufacturing defects. Our technical team provides troubleshooting support, failure analysis, and rapid replacement services to ensure minimal downtime.