A268 18Cr-2Mo

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America ASTM A26818Cr-2Mo 一般设备用无缝和焊接铁素体与马氏体不锈钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A26818Cr-2Mo / A268 18Cr-2Mo

Category	Grade	Standard	Region/Area	Standard Content
Metals	A268 18Cr-2Mo	ASTM A268/A268M	America	一般设备用无缝和焊接铁素体与马氏体不锈钢管

Chemical composition(mass fraction)(wt.%) of the A268 18Cr-2Mo

Element	Min	Max	Similar
N	-	0.0350	-
Mo	1.7500	2.5000	-
Ni	-	1.0000	-
Cr	17.5000	19.5000	-
P	-	0.0400	-
S	-	0.0300	-
Mn	-	1.0000	-
Si	-	1.0000	-
C	-	0.0250	-

Mechanical Properties of steel grade A268 18Cr-2Mo

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)
685 (≥)	347 (≥)	44	41	22	Solution and Aging, Annealing, Ausaging, Q+T,etc	112

Physical Properties of steel grade A268 18Cr-2Mo

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
31	-	-			0.33	-
146	199	-	22.3	144		-
748	-	14	33.2			224	313

Heat Treatment of steel grade A268 18Cr-2Mo

Heat treated : 1845°C - 1984°C

Technological Curves of steel grade A268 18Cr-2Mo

No Curve

Cross Reference Table (Equivalent Grade) of A268 18Cr-2Mo

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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