61SiCr7 1.7108 - EN 10089-2002

Grade	61SiCr7
European Standard Steel Grade	1.7108
Corresponding Standard	EN 10089-2002 Hot rolled steels for quenched and tempered springs; technical delivery conditions
Classification	Spring Steel
Properties	Strength Elasticity Fatigue Resistance Quench Hardness

61SiCr7 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	More
Minimum Value	0.57	1.6	0.7	-	-	0.2	Cu+10Sn ±0.60
Maximum Value	0.65	2	1	0.025	0.025	0.45	Cu+10Sn ±0.60

61SiCr7 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Bar, rod	+QT	1550~1850	≥1400	≥5.5	≥20		KU ≥8
Rod	+S					≤280
Bar, rod	+A					≤248
Bar, rod	+AC					≤230

61SiCr7 Corresponding Standards(Same grade name, different standards)

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