60SiCr7 Spring Steel Technical Details


60SiCr7 (1.7108 ) is a widely used silico-manganese spring steel with slightly higher strength, elasticity and hardenability than 55Si2Mn . It is suitable for the production of flat springs with large loads in the railway vehicles, automobile and tractor industries, or coil springs with a wire diameter of less than 30mm, and also suitable for the production of heat-resistant springs in non-corrosive media with a working temperature of 250 ℃ or less and withstand alternating loads. And large important coiled springs that work under high stress.


Chemical Composition:




Mechanical Properties:


 Tensile Strength σb (MPa): Yield Strength σ0.2 (MPa): Elongation δ5 (%):Reduction of area ψ (%): Hardness:
≥ 1274 (130)  ≥1176 (120)≥ 5≥ 25Hot rolled: ≤321HB;
Cold Drawn + Heat Treatment: ≤350HB



Heat treatment specification: 

quenching 870℃±20℃, oil cooling; tempering 480℃±50℃ (for special needs, ±30℃).


Metallographic structure: 

tempered troostite.


60SiCr7 Technical Data Sheet PDF

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