Hot Products

  • Alloy Steel
    • SAE4340
      SAE4340
      SAE4340 is a high-strength, low-alloy steel known for its outstanding toughness, strength and fatigue resistance, and is particularly suitable for applications such as aerospace, oil and gas, and the automotive industry. This material has excellent mechanical properties and wear resistance, and is often used to manufacture high-strength, high-wear-resistant parts, such as crankshafts for aircraft engines and gears for automotive transmissions. The development trend of SAE4340 steel focuses on improving material properties and production process improvements, while paying attention to environmental protection and sustainable development. This alloy steel plays an important role in the fields of aviation, automobiles, and energy due to its excellent performance and wide application prospects.
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    • 655M13
      655M13
      655M13 is a low alloy steel containing chromium, molybdenum and nickel. It is commonly used in the aerospace and defense industries for applications such as gears, shafts and aircraft landing gear components. 655M13 has high strength, good ductility and excellent toughness, making it suitable for high stress environments. It is typically supplied in the normalized and tempered condition for easy welding and machining.
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    • SCM415
      SCM415
      SCM415 Steel is a high quality Quenched and Tempered Alloy Structural steel, It belong to the high quality medium carbon. SCM415 whose surface are processed through carburizing hardening treatment are used for the parts which need high toughness or wear resistance, such as cylinder piston, crankshaft, gears, pin, shafts and so on.
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    • 5CrNiMo
      5CrNiMo
      5CrNiMo steel is a hot work die steel with good toughness, strength and high wear resistance. Use vacuum refining technology when melting to ensure the high purity of steel, and professional heat treatment is used to obtain the best pre-hardening effect and uniform hardness distribution of the steel.
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    • Carbon Steel
      • C60N
        C60N
        C60N is a high carbon alloy steel that is a cold work die steel with high hardness and good wear resistance. "C" stands for Carbon, the number "60" indicates that the steel contains approximately 0.60% carbon, and "N" may indicate that nitrogen (Nitrogen) or other alloying elements have been added to improve the performance of the steel. Due to its high hardness and wear resistance, C60N is suitable for manufacturing cold work dies, such as stamping dies, drawing dies, thread rolling dies, cold extrusion dies, etc.It is also suitable for manufacturing molds and tools with high precision and high wear resistance.
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      • S45C+QT
        S45C+QT
        S45C+QT is a Japanese standard carbon steel, where "S45C" means that the carbon content of the steel is approximately 0.45% (according to Japanese Industrial Standard JIS G4051), and "QT" means that it has been quenched and tempered. Quenching and tempering is a heat treatment process designed to increase the hardness and toughness of steel so that it can achieve better mechanical properties. S45C+QT is widely used in manufacturing mechanical parts, such as shafts, gears, connecting rods, bolts and various molds.
        Due to its good mechanical properties and processability, S45C+QT is also suitable for manufacturing parts requiring higher strength and wear resistance.
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      • C45R+N
        C45R+N
        C45R+N is an improved C45 steel, which is a medium carbon steel, where "R" means Quenched and Tempered, and "N" means nitriding treatment. C45R+N steel has improved its hardness, wear resistance and fatigue strength through these heat treatment processes. C45R+N steel is widely used in the manufacture of mechanical parts that are subject to high loads and wear, such as gears, shafts, bearings, etc.
        Suitable for manufacturing molds and tools that require high wear resistance and high fatigue strength.
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      • A36
        A36
        ASTM A36 Steel Plate is one of the most common grades of steel used in structural applications. This mild carbon steel grade contains chemical alloys that give it properties such as machinability, ductility, and strength that are ideal for use in constructing a variety of structures.
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      About Us

      Union Steel is China’s lead supplier of alloy steel both nationally and internationally. Founded in 1988 and now employing 356 people in 3 provinces of China. We are committed to providing customers with a fast and professional one-stop supply solution for alloy steel. 
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      30000
      tons
      Dynamic inventory
      356
      +
      Number of employees
      36
      +
      Industry experience
      42CrMoS4 Alloy Steel

      Certifications

      Union Steel is a leading supplier of alloy steel in China and abroad. It has been established for more than 30 years. Union Steel has a dynamic inventory of 30,000 tons all year round. 
      With high-quality products, excellent delivery performance and perfect customer service, it has won the praise and trust of customers at home and abroad.

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      Who We Serve

      Our Customer Services

      • <span style="font-size:18px;">Product Customization Service</span>
      • <span style="font-size:18px;">Pre-sales Consulting Service</span>
      • <span style="font-size:18px;">Sales And Service</span>
      • <span style="font-size:18px;">Services &amp; Capabilities</span>
      • <span style="font-size:18px;">Packing Services</span>
      • <span style="font-size:18px;">Customer Feedback and Service lmprovement</span>

      Latest News​​​​​​​

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      Applications of Cold Drawn Spring Steel in Automotive Springs: Why It's The Ideal Choice for Suspension Systems

      Cold Drawn Spring Steel stands as a high-performance material, recognized for its exceptional strength, durability, and elasticity. As a top choice for spring manufacturing, it is indispensable in the automotive industry, particularly for suspension systems. Union Steel, a leading supplier of high-q

      2025-03-03
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      The Benefits of Hot Rolled Spring Steel in Manufacturing High-Performance Springs

      In the world of spring manufacturing, the choice of material plays a crucial role in determining the final product's strength, durability, and overall performance. Among various types of steel, hot rolled spring steel stands out for its exceptional characteristics. Specifically designed for high-per

      2025-02-28
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      The Science Behind Spring Steel: How Its Carbon Content Affects Performance

      Spring steel is a specialized type of high-carbon alloy steel, engineered for use in the manufacture of springs. Known for its impressive elasticity, strength, and durability, it is the material of choice in a variety of applications, from automotive suspension systems to mechanical devices. The key

      2025-02-27
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      Non-Alloy Spring Steel Vs. Alloy Spring Steel: Key Differences And Applications

      Spring steel is a specialized high-carbon alloy steel used to manufacture springs due to its exceptional elasticity and strength. It is crucial in applications where maintaining shape and performance under stress is key.

      2025-02-26

      Our Partners

      The Management and Staff at Union Steel, have a firm belief that by identifying the customers’ needs, we can achieve the best results for all. Union Steel warmly welcomes friends around the world to cooperate with us.

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      Tel: +86-24-81267300
      Phone: +86-18904079192
      Add: No. 237, Shenbei West Road, Yuhong District, Shenyang City, Liaoning Province

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