Product Description
  • SCM415 has a moderate carbon content and alloy composition, providing good strength and hardness.
  • It has good machinability, is easy to cut, forge and weld, and can be formed into parts of various shapes.
  • With proper heat treatment, its hardness and strength can be improved while maintaining good toughness.
Detailed introduction

SCM415 is a medium carbon alloy steel widely used in the manufacture of mechanical parts and structural components.

SCM415 main components percentage
Carbon (C) 0.13-0.18%
Silicon (Si) 0.15-0.35%
Manganese (Mn) 0.60-0.85%
Phosphorus (P) ≤ 0.030%
Sulfur (S) ≤ 0.030%
Chromium (Cr) 0.80-1.10%
Molybdenum (Mo) 0.15-0.25%
Nickel (Ni) ≤ 0.030%
Iron (Fe) The remaining part
Country Numbers
  • Japan:
    JIS (Japanese Industrial Standard): JIS G 4053 SCM440 or JIS SCM440
  • USA:
    ASTM (American Society for Testing and Materials) or AISI (American Iron and Steel Institute): ASTM A29 or AISI 4140
  • China:
    GB (National Standard): GB/T 3077-1999
  • Europe:
    EN (European Standard): EN 10083-3
  • Germany:
    DIN (German Industrial Standard): DIN 42CrMo4
Main application scope
  • Mechanical parts manufacturing: SCM415 steel has excellent mechanical properties and is suitable for manufacturing various mechanical parts, such as bearings, gears, bolts, pins, etc.
  • Mold manufacturing: Due to its excellent wear resistance and heat treatment properties, SCM415 is often used to manufacture molds, templates, stamping dies, etc.
  • Transmission parts: SCM415 steel is suitable for manufacturing parts for transmission systems, such as shafts, gears, couplings, etc.
  • Automotive parts: In the automotive manufacturing industry, SCM415 can be used to manufacture engine parts, transmission system parts, braking system parts, etc.
  • Motorcycle parts: Similar to automobile parts, SCM415 is also commonly used to manufacture motorcycle engines, transmission systems, suspension systems, and other parts.
  • Tool manufacturing: Due to its excellent wear resistance and heat treatment properties, SCM415 can be used to manufacture various tools, such as cutting tools, drill bits, molds, etc.
  • Bearings and moving parts: The strength and wear resistance of SCM415 steel make it suitable for manufacturing moving parts such as bearings, bushings, and bearing housings.
  • Building Structures: In some building structures requiring high strength, SCM415 steel may also be used to manufacture connectors, supporting structures, etc.
Application