20MnNiCrMo3-2 1.6522 - DIN 17115-2012

Grade	20MnNiCrMo3-2
Germany W-Nr.	1.6522
Corresponding Standard	DIN 17115-2012 Steel for welded round link chains and chain components-Technical delivery conditions
Classification	Alloy Steel
Properties	Weldability

20MnNiCrMo3-2 Chemical Element Composition Content (%)

Component	C	Si ^①	Mn	P	S	Cr	Ni	Cu	Mo	N	Al
Minimum Value	0.17	-	0.7	-	-	0.4	0.4	-	0.15	-	0.025
Maximum Value	0.23	0.25	1	0.02	0.015	0.6	0.7	0.2	0.25	0.012	0.05

20MnNiCrMo3-2 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 %	Hardness HBW	Impact Energy Absorption KV2 J
d≤10	Quenching + Tempering (+QT)	≥1155	≥1040	≥12	≥50		≥60
10<d≤20		① ≥1130	① ≥1020	≥10	≥50		≥60
Chain*	Processing for Cold Shearing (+S)	≤860				HV10: ≤268；HBW10:≤255
Chain	Annealing (+A)	≤701				HV10: ≤221；HBW10: ≤210
Chain	Annealing + Cold Drawing (+A+C)	≤850				HV10: ≤263；HBW10:≤250
Chain **	Spheroidizing Annealing (+AC)	≤610				HV10: ≤189；HBW10:≤180
Chain	Spheroidizing Annealing + Cold Drawing (+AC+C)	≤740				HV10: ≤233；HBW10:≤220

20MnNiCrMo3-2 Corresponding Standards(Same grade name, different standards)

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