Z12CKNDWNb21-20-20 - NF A 35-579-1991

Grade	Z12CKNDWNb21-20-20
Corresponding Standard	NF A 35-579-1991 Iron and steel. Stell for Valves. Types.
Classification	Alloy Steel

Z12CKNDWNb21-20-20 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N	W	Nb	Co
Minimum Value	0.08	-	1	-	-	20	19	2.5	0.1	2	0.75	18.5
Maximum Value	0.16	1	2	0.04	0.03	22.5	21	3.5	0.2	3	1.25	21

Z12CKNDWNb21-20-20 Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
+Q1165~1195 (a) +T800~830	690~930	≥345	≥20

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