56Si7 1.5026 - DIN EN 10089-2003

Grade	56Si7
Germany W-Nr.	1.5026
Corresponding Standard	DIN EN 10089-2003 Hot-rolled steels for quenched and tempered springs Technical delivery conditions
Classification	Spring Steel
Properties	Strength Elasticity Fatigue Resistance Weldability

56Si7 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	More
Minimum Value	0.52	1.6	0.6	-	-	Cu+10Sn ±0.60
Maximum Value	0.6	2	0.9	0.025	0.025	Cu+10Sn ±0.60

56Si7 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	Quenching and Tempering (+QT)	1450~1750	≥1300	≥6	≥25	-	KU ≥13
Bar, rod	Cold Shearing Treatment (+S)	-	-	-	-	≤280	-
Bar, rod	Softening Annealing (+A)	-	-	-	-	≤248	-
Bar, rod	Spheroidizing Annealing (+AC)	-	-	-	-	≤230	-

56Si7 Corresponding Standards(Same grade name, different standards)

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