Chrome Silicon Wire for Custom Springs

Please note that we do not sell ASTM A 401 chrome silicon wire or any other materials in raw form. Chrome silicon wire is a material option for custom springs,  etc., manufactured by Peninsula Spring.

Chrome silicon spring steels have a definite place in the field of spring materials, particularly for conditions involving high stress and for applications where shock or impact loading occurs. Chrome silicon wire can withstand higher and lower temperatures than high-carbon steel wire, and is obtainable in annealed and pre-tempered conditions.

Chrome silicon wire is ideal for manufacturing custom springs with high shock loads and/or moderately elevated temperature requirements. Contact Peninsula Spring to discuss the material requirements of your custom manufacturing project.


Nominal Chemical & Physical Properties

  • C: 0.51 - 0.59%
  • Cr: 0.60 - 0.80%
  • Si: 1.20 - 1.60%
  • Minimum tensile strength: psi x 103 235-300
  • Design stress % minimum tensile: 45
  • Modulus of elasticity: psi x 106 30
  • Modulus in torsion: psi x 106 11.5
  • Maximum operating temperature: 475°F (246°C)
  • Rockwell hardness: C48-55

Heat Treating ASTM A 401 Chrome Silicon Wire 

Chrome silicon wire is delivered in pre-tempered condition, and therefore, no further hardening can be obtained through heating.  However, depending on the application, completed springs forms will undergo a stress-relieving process.

Manufacturing Custom Springs Chrome Silicon Wire

Chrome silicon is cold drawn and heat treated before fabrication.

Common Trade Names

  • Silicon Chrome
  • OTSC/OTCS
  • UNS G92540
  • UNS  K15590
  • ASTM A401
  • AISI 9254
  • QQ-W-412 Comp. II
  • SAE J157S

Contact Peninsula Spring Today About Chrome Silicon Wire

Contact Peninsula Spring for more information about our Chrome Silicon Wire, Custom Springs and Custom Wire Forms.