LSS 4140

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Global 企业标准 LSS4140 Latrobe Specialty Steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: LSS4140 / LSS 4140

Category	Grade	Standard	Region/Area	Standard Content
Metals	LSS 4140	--	Global	Latrobe Specialty Steel

Chemical composition(mass fraction)(wt.%) of the LSS 4140

Element	Min	Max	Similar
Si	-	-	0.2500
Mo	-	-	0.2000
Mn	-	-	1.0000
Cr	-	-	1.0000
C	-	-	0.4000

Mechanical Properties of steel grade LSS 4140

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)
991 (≥)	846 (≥)	31	42	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	313

Physical Properties of steel grade LSS 4140

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	-	-			0.23	-
826	418	-	24.3	221		-
298	-	43	42.2			324	322

Heat Treatment of steel grade LSS 4140

Heat treated : 1956°C - 1231°C

Technological Curves of steel grade LSS 4140

No Curve

Cross Reference Table (Equivalent Grade) of LSS 4140

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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