Z 20 CDNbV 11

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France AFNOR NF Z20CDNbV11 Iron and steel. Heat treatable steels for externally threaded high performance fasteners for use at high temperatures and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Z20CDNbV11 / Z 20 CDNbV 11

Category	Grade	Standard	Region/Area	Standard Content
Metals	Z 20 CDNbV 11	NF A35-558	France	Iron and steel. Heat treatable steels for externally threaded high performance fasteners for use at high temperatures

Chemical composition(mass fraction)(wt.%) of the Z 20 CDNbV 11

Element	Min	Max	Similar
V	0.1000	0.3000	-
Si	0.1000	0.5000	-
S	-	0.0150	-
P	-	0.0250	-
Ni	-	1.0000	-
Nb	0.2500	0.5500	-
N	0.0500	0.1000	-
Mo	0.5000	1.0000	-
Mn	0.3000	0.6000	-
Cr	10.0000	12.0000	-
C	0.1800	0.2500	-
V	0.1000	0.3000	-
Si	0.1000	0.5000	-
S	-	0.0150	-
P	-	0.0250	-
Ni	-	1.0000	-
Nb	0.2500	0.5500	-
N	0.0500	0.1000	-
Mo	0.5000	1.0000	-
Mn	0.3000	0.8000	-
Cr	10.0000	12.0000	-
C	0.1800	0.2500	-

Mechanical Properties of steel grade Z 20 CDNbV 11

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
786 (≥)	549 (≥)	31	13	34	Solution and Aging, Annealing, Ausaging, Q+T,etc	442

Physical Properties of steel grade Z 20 CDNbV 11

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
13	-	-			0.34	-
184	143	-	22.3	123		-
634	-	33	32.2			341	244

Heat Treatment of steel grade Z 20 CDNbV 11

Heat treated : 1153°C - 1288°C

Technological Curves of steel grade Z 20 CDNbV 11

No Curve

Cross Reference Table (Equivalent Grade) of Z 20 CDNbV 11

Grade	Standard	Country	Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1

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