L415QB

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China GB L415QB 石油天然气工业输送钢管交货技术条件第2部分：B级钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: L415QB / L415QB

Category	Grade	Standard	Region/Area	Standard Content
Metals	L415QB	GB/T 9711.2	China	石油天然气工业输送钢管交货技术条件第2部分：B级钢管

Chemical composition(mass fraction)(wt.%) of the L415QB

Element	Min	Max	Similar

The data is being updated,

Mechanical Properties of steel grade L415QB

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)
817 (≥)	911 (≥)	43	13	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	431

Physical Properties of steel grade L415QB

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
14	-	-			0.13	-
646	719	-	34.3	334		-
335	-	14	22.2			322	123

Heat Treatment of steel grade L415QB

Heat treated : 1567°C - 1213°C

Technological Curves of steel grade L415QB

No Curve

Cross Reference Table (Equivalent Grade) of L415QB

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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