20NiCrMo13-4 1.6660 - NF EN 10084-2008

Grade	20NiCrMo13-4
	1.6660
Corresponding Standard	NF EN 10084-2008 Surface Hardened Structural Steel
Classification	Alloy Steel

20NiCrMo13-4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo
Minimum Value	0.17	-	0.3	-	-	0.8	3	0.3
Maximum Value	0.22	0.4	0.6	0.025	0.035	1.2	3.5	0.5

20NiCrMo13-4 Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Steel	Processed to a Certain Shearability (+S)	≤277
Steel	Softening Annealing (+A)	≤255
Steel	Processed to a specific hardness (+TH)	207~255
Steel	Processed to Ferrite-Pearlite Structure (+FP)	197~241

20NiCrMo13-4 Corresponding Standards(Same grade name, different standards)

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