Material Grades

SPRING STEEL

Material Spring Steel

Special Steel Stores is a leading stockist and supplier of Material Spring Steel in Pune, India.

Material Spring Steel stockist, Material Spring Steel stockist in Pune, Material Spring Steel stockist in India, Material Spring Steel supplier, Material Spring Steel supplier in Pune, Material Spring Steel supplier in India.

Spring steel is a name given to a wide range of steels used in the manufacturing of springs, it is used in automotive and industrial suspension applications. These type of steels are generally low-alloy manganese, medium-carbon steel or high-carbon steel with a very high yield strength.

Product Enquiry

  • Spring steel is a name given to a wide range of steels used in the manufacturing of springs, it is used in automotive and industrial suspension applications. These type of steels are generally low-alloy manganese, medium-carbon steel or high-carbon steel with a very high yield strength. This allows objects made of spring steel to return to their original shape despite significant deflection or twisting.
  • Major Applications:
  • Tubular spring steel is used in the landing gear of some small aircrafts.
    Tool holders.
    Used in the making of knives .
    Forging die shims.
    Piano wire , spring clamps, antennas, springs, and vehicle coil springs, leaf springs.
    Metal swords for stage combat.
    Lockpicks

Common spring steel grades:

SAE grade
(ASTM grade) 		Composition Yield strength Hardness (HRC) Comments
Typical Maximum
1070 0.65-0.75% C, 0.60-0.90% Mn, max .050% S, max .040% P Normally supplied annealed 165vpn 180vpn CS70, CK67, C70E
1074/1075 0.70–0.80% C, 0.50–0.80% Mn, max. 0.030% P, max. 0.035% S 62–78 ksi (430–530 MPa) 44–50 50 Scaleless blue,or Polished Bright
1080 (A228) 0.7–1.0% C, 0.2–0.6% Mn, 0.1–0.3% Si       Piano wire, music wire, springs, clutch discs
1095 (A684) 0.90–1.03% C, 0.30–0.50% Mn, max. 0.030% P, max. 0.035% S[7] 60–75 ksi (413–517 MPa), annealed 48–51 59 Blue, or polished bright spring steel
5160 (A689) 0.55–0.65% C, 0.75–1.00% Mn, 0.70–0.90% Cr 97 ksi (669 MPa)   63 Chrome-silicon spring steel; fatigue-resistant
50CrV4 (EN 10277) 0.47–0.55% C, max. 1.10% Mn, 0.90–1.20% Cr, 0.10–0.20% V, max. 0.40% Si 1200 MPa     Old British 735 H1steel, SAE 6150, 735A51
9255 0.50–0.60% C, 0.70–0.95% Mn, 1.80–2.20% Si        
301 spring-tempered stainless steel 0.08–0.15% C, max. 2.00% Mn, 16.00–18.00% Cr, 6.00–8.00% Ni 147 ksi (1014 MPa)   42 Equivalents EN 10088-2 1.4310, X10CrNi18-8

Below are the Spring Steel as per different standards:

BS 970 STANDARD (EN SERIES) Japanese Standards As Per German Standards Din Series IS Standard
EN 42, EN 42 J, EN 45, EN 47, EN 48 SUP 3, SUP 6, SUP 7, SUP 9, SUP 10, SUP 11A, SUP 12, SUP 13 55CR3, 51Si7 ,50CRV4, 51CRMOV4, 41CrALMO7 98C6, 55Si 07, 60Si 07 ,50CR4 V2, 60CR4 V2