AMS 6390B

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#AMS # # #6390B

Description

AMS 6390B Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: AMS 6390B

Category	Type	Steel Grade
Steel Grades	Carbon Steel	AMS 6390B
		AMS 6371G
		AMS 6372G
		AMS 6373C
		AMS 6378C
		AMS 6379A
		AMS 6381D
		AMS 6382J
		AMS 6385D
		AMS 6386
		AMS 6386B

Chemical composition(mass fraction)(wt.%) of the AMS 6390B

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.38-0.43					0.95
Mo	Al	Cu	Nb	Te	V	Ce
0.2
N	Co	Pb	B	Other
				AISI/SAF 4140 UNS G41400

Mechanical Properties of steel grade AMS 6390B

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)
798 (≥)	417 (≥)	14	12	22	Solution and Aging, Annealing, Ausaging, Q+T,etc	222

Physical Properties of steel grade AMS 6390B

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
11	-	-			0.33	-
131	433	-	13.3	442		-
126	-	32	34.2			121	333

Heat Treatment of steel grade AMS 6390B

Heat treated : 1958°C - 1923°C

Technological Curves of steel grade AMS 6390B

No Curve

Cross Reference Table (Equivalent Grade) of AMS 6390B

Grade	Standard	Country	Application
Q195		China	Engineering and welding
Q215		China	Engineering and welding
Q215 B		China	Engineering and welding
Q235		China	Engineering and welding
Q235 B		China	Engineering and welding
Q235 C		China	Engineering and welding
Q235 D		China	Engineering and welding
Q255 A		China	Engineering and welding
Q255 B		China	Engineering and welding
Q275		China	Engineering and welding
Q235q C		China	Bridge structure with steel
Q235q D		China	Bridge structure with steel
Q345q E		China	Bridge structure with steel
Q345q C		China	Bridge structure with steel
ASTM 1030	ASTM	USA	General use carbon steel bar
UNS G10300	UNS	USA	General use carbon steel bar
ASTM 1005	ASTM	USA	General use carbon steel bar
UNS G10050	UNS	USA	General use carbon steel bar
ASTM 1006	ASTM	USA	General use carbon steel bar
UNS G10060	UNS	USA	General use carbon steel bar

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