JIS G4051 S40C S43C S45C S48C S50C S55C Carbon Steel Round Bar

Technical specifications

Customization guide

Adjustable parameters include length, diameter, and surface finish to meet specialized needs. For instance:

• Length customization (cutting service) for precise project dimensions.
• Threaded ends for easy assembly in machinery components.
• Tighter tolerance specifications (e.g., ±1%) for high-precision applications.

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With cold-drawn carbon steel round bars, you can build robust frameworks for bridges, machinery, and architectural structures. Their free-cutting properties enable swift production of gears, shafts, and connectors, while compliance with JIS/ASTM standards ensures reliability in global supply chains.

Choose your model

Supplier's note

1. Key Technical Breakthroughs:

   • Cold Drawing: Achieves smoother surfaces and tighter tolerances compared to hot-rolled alternatives.
   • High Tensile Strength: The Pro Model’s 650 MPa rating exceeds industry benchmarks by 30%, enabling use in heavy-load applications.
   • Precision Tolerances: The Pro Model’s ±0.5% tolerance reduces assembly errors in precision machinery.

2. Optimal Version Selection:

   • Base Model: Suitable for general construction and light machinery (e.g., scaffolding, basic frameworks).
   • Advanced Model: Ideal for moderate-stress industrial machinery (e.g., conveyor systems, pumps) requiring ASTM/DIN compliance.
   • Pro Model: Recommended for high-stress environments (e.g., offshore platforms, aerospace components) where extreme strength and precision are critical.

With the Pro Model’s 650 MPa tensile strength, you can design components that withstand extreme pressures, while its ±0.5% tolerance ensures seamless integration with high-precision systems. The Advanced Model’s 28 HRC hardness paired with ±1.5% tolerance balances cost and performance for mid-tier applications.