A400 4340

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America ASTM A4004340 钢棒的成分及机械性能选择指南 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A4004340 / A400 4340

Category	Grade	Standard	Region/Area	Standard Content
Metals	A400 4340	ASTM A400	America	钢棒的成分及机械性能选择指南

Chemical composition(mass fraction)(wt.%) of the A400 4340

Element	Min	Max	Similar

The data is being updated,

Mechanical Properties of steel grade A400 4340

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)
525 (≥)	354 (≥)	42	33	43	Solution and Aging, Annealing, Ausaging, Q+T,etc	324

Physical Properties of steel grade A400 4340

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
32	-	-			0.22	-
833	822	-	42.3	322		-
976	-	43	13.2			142	143

Heat Treatment of steel grade A400 4340

Heat treated : 1994°C - 1978°C

Technological Curves of steel grade A400 4340

No Curve

Cross Reference Table (Equivalent Grade) of A400 4340

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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