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Home Material Q/BQB 516-2019
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Grade B55SiCr
Other Names
Corresponding Standard Q/BQB 516-2019
Spring Steel Wire Rod
Brand/Supplier
-> BAOSTEEL
Classification Spring Steel
Properties Elasticity Quench Hardness
B55SiCr Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu
Minimum Value 0.51 1.2 0.6 - - 0.6 - -
Maximum Value 0.59 1.6 0.9 0.02 0.015 0.8 0.25 0.12
B55SiCr Mechanical Properties
Tensile Strength
σb
Mpa 		Fatigue Limit
Tensile σ-1T
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
≥950 ≥10 ≥32 HRC
≤32

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