55Si 7 - EU 89-1971

Grade	55Si 7
Corresponding Standard	EU 89-1971 Alloy Steel for Hot Forming Heat Treatment of Springs: Quality Specification
Classification	Alloy Steel
Properties	Elasticity
Density	7.85 g/cm³

55Si 7 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.52	1.5	0.6	-	-
Maximum Value	0.6	2	0.9	0.04	0.04

55Si 7 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
Wire stock, coil wire	Quenching and tempering (H+T)	1324~1569	≥1128	≥6	-
Wire stock, coil wire	Softening Treatment	-	-	-	≤248

55Si7 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!