21NiCrMoS2 1.6526 - DIN 17210-1986

Grade	21NiCrMoS2
Germany W-Nr.	1.6526
Corresponding Standard	DIN 17210-1986 Case Hardening Steels – Technical Delivery Conditions
Classification	Alloy Steel
Properties	Carburizing Ability

21NiCrMoS2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo
Minimum Value	0.17	-	0.65	-	0.02	0.4	0.4	0.15
Maximum Value	0.23	0.4	0.95	0.035	0.035	0.7	0.7	0.25

21NiCrMoS2 Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
All product shapes	Softening Annealing (G)	≤197
Bars, wire, plates, forgings; d≤150	Processed to a Certain Strength (BF)	152~201
Bar stock, plate, forgings; d≤60	Processed to Ferrite-Perlite Structure (BG)	145~192

New and Old Grade Replacement List

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