LG4

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England B.S. LG4 Specification for copper alloy ingots and copper alloy and high conductivity copper castings and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: LG4 / LG4

Category	Grade	Standard	Region/Area	Standard Content
Metals	LG4	BS 1400	England	Specification for copper alloy ingots and copper alloy and high conductivity copper castings

Chemical composition(mass fraction)(wt.%) of the LG4

Element	Min	Max	Similar
Zn	1.7000	3.2000	-
Total Others	-	0.7000	-
Sn	6.0000	8.0000	-
Si	-	0.0100	-
Sb	-	0.2500	-
S	-	0.1000	-
Pb	2.7000	3.5000	-
P	-	0.0200	-
Ni	-	2.0000	-
Fe+Sb+As	-	0.4000	-
Fe	-	0.2000	-
Cu	-	-	-
Bi	-	0.0500	-
As	-	0.1500	-
Al	-	0.0100	-

Mechanical Properties of steel grade LG4

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)
842 (≥)	451 (≥)	13	43	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	212

Physical Properties of steel grade LG4

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
33	-	-			0.21	-
697	436	-	21.3	411		-
441	-	22	14.2			331	212

Heat Treatment of steel grade LG4

Heat treated : 1773°C - 1154°C

Technological Curves of steel grade LG4

No Curve

Cross Reference Table (Equivalent Grade) of LG4

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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Rfq.: sales@longhaisteel.com

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