Shock Absorber Spring Steel Wire

60Si2Mn alloy spring steel is a widely used silicon manganese spring steel with slightly higher strength, elasticity and hardenability than 55Si2Mn.60Si2Mn alloy spring steel is suitable for railway vehicles, automobile and tractor industry to make a large load of flat spring or coil spring with line diameter under 30mm, plate spring is also suitable for the production of heat resistant spring in the working temperature under 250 ℃ non-corrosive medium and to bear alternating load and work under high stress of large important coil spring.

Chemical carbon

C: 0.56 ~ 0.6

Silicon Si: 1.50 ~ 2.00

Manganese Mn: 0.60 ~ 0.90

S: sulfur 0.035 or less

Mechanical properties:

Sigma b (MPa) : ≥1274(130)

Yield strength sigma s (MPa) : ≥1176(120) delta 10 (%) : ≥5

Reduction of area bits (%) : 25 or higher

Hardness: hot rolling,≤321HB;

Cold drawing + heat treatment,≤321HB

P: ≤0.035 Cr: ≤0.35

Ni Ni: 0.35 or less

Copper Cu: 0.25 or less

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