LZ50

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China 宝钢Q/BQB LZ50 轨道车辆用车轴坯 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: LZ50 / LZ50

Category	Grade	Standard	Region/Area	Standard Content
Metals	LZ50	Q/BQB 190	China	轨道车辆用车轴坯

Chemical composition(mass fraction)(wt.%) of the LZ50

Element	Min	Max	Similar
Cu	-	0.2500	-
Ni	-	0.3000	-
Cr	-	0.3000	-
S	-	0.0300	-
P	-	0.0300	-
Mn	0.6000	0.9000	-
Si	0.1500	0.3500	-
C	0.4700	0.5500	-

Mechanical Properties of steel grade LZ50

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)
698 (≥)	924 (≥)	42	14	33	Solution and Aging, Annealing, Ausaging, Q+T,etc	413

Physical Properties of steel grade LZ50

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	-	-			0.14	-
883	574	-	23.3	141		-
353	-	43	22.2			111	134

Heat Treatment of steel grade LZ50

Heat treated : 1861°C - 1531°C

Technological Curves of steel grade LZ50

No Curve

Cross Reference Table (Equivalent Grade) of LZ50

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

Available Suppliers

Jiangyou Longhai Special Steel Co.,Ltd.

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Rfq.: sales@longhaisteel.com

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