Material

Specification

Sizes

Hard Drawn Spring Steels Stainless Steels

IS 4454 (Part 1)1981
IS 4454 (Part 4) 1975
SS 302, SS,304 and SS 316

0.30 mm to 12.0 mm
0.10 mm to 15.0 mm

Alloy Spring Steels

IS 3195 : 1992 and IS 3431 : 1982
55 Si7, 60 Si7 & 50cR4v2 en 45, en45a & en 47

13.0 mm to 40.0 mm

Spring Steel Strips

En42j & en 47

0.30 mm to 4.5mm