20MnB4 1.5525 - DIN EN 10269-2014

Grade	20MnB4
Germany W-Nr.	1.5525
Corresponding Standard	DIN EN 10269-2014 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
Classification	Alloy Steel
Density	7.85 g/cm³

20MnB4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	B	Al
Minimum Value	0.18	-	0.9	-	-	-	-	0.0008	0.02
Maximum Value	0.23	0.3	1.2	0.025	0.025	0.3	0.25	0.005	-

20MnB4 Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Impact Energy Absorption KV2 J
-*	+AC	≤520	-	-	≥64	-
d≤16**	+QT	800~950	≥640	≥14	≥52	≥40

20MnB4 Corresponding Standards(Same grade name, different standards)

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