GH2018

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China GJB GH2018 Specification for cold-rolled superalloy sheets for aviation and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GH2018 / GH2018

Category	Grade	Standard	Region/Area	Standard Content
Metals	GH2018	GJB 1952A	China	Specification for cold-rolled superalloy sheets for aviation

Chemical composition(mass fraction)(wt.%) of the GH2018

Element	Min	Max	Similar
C	-	0.0600	-
Cr	18.0000	21.0000	-
Ni	40.0000	44.0000	-
W	1.8000	2.2000	-
Mo	3.7000	4.3000	-
Al	0.3500	0.7500	-
Ti	1.8000	2.2000	-
Fe	-	-	-
B	-	0.0150	-
Ce	-	0.0200	-
Mn	-	0.5000	-
Si	-	0.6000	-
P	-	0.0200	-
S	-	0.0150	-
Zr	-	0.0500	-

Mechanical Properties of steel grade GH2018

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)
669 (≥)	969 (≥)	22	41	43	Solution and Aging, Annealing, Ausaging, Q+T,etc	432

Physical Properties of steel grade GH2018

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
21	-	-			0.44	-
944	346	-	13.3	234		-
244	-	34	41.2			123	414

Heat Treatment of steel grade GH2018

Heat treated : 1832°C - 1866°C

Technological Curves of steel grade GH2018

No Curve

Cross Reference Table (Equivalent Grade) of GH2018

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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