Z 6 CNT 18-12 B

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France AFNOR NF Z6CNT18-12B Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Z6CNT18-12B / Z 6 CNT 18-12 B

Category	Grade	Standard	Region/Area	Standard Content
Metals	Z 6 CNT 18-12 B	NF A49-214	France	Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery

Chemical composition(mass fraction)(wt.%) of the Z 6 CNT 18-12 B

Element	Min	Max	Similar
Ti	-	0.6000	-
Si	-	1.0000	-
S	-	0.0300	-
P	-	0.0350	-
Ni	10.0000	13.0000	-
Mn	-	2.0000	-
Cr	17.0000	19.0000	-
C	0.0400	0.0800	-
B	0.0010	0.0030	-

Mechanical Properties of steel grade Z 6 CNT 18-12 B

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)
325 (≥)	368 (≥)	22	21	42	Solution and Aging, Annealing, Ausaging, Q+T,etc	333

Physical Properties of steel grade Z 6 CNT 18-12 B

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
41	-	-			0.12	-
454	792	-	23.3	212		-
967	-	34	13.2			234	413

Heat Treatment of steel grade Z 6 CNT 18-12 B

Heat treated : 1779°C - 1519°C

Technological Curves of steel grade Z 6 CNT 18-12 B

No Curve

Cross Reference Table (Equivalent Grade) of Z 6 CNT 18-12 B

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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