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L458

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China GB L458 石油天然气工业 输送钢管交货技术条件 第1部分:A级钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: L458 / L458
Category Grade Standard Region/Area Standard Content
Metals L458 GB/T 9711.1 China 石油天然气工业 输送钢管交货技术条件 第1部分:A级钢管

Chemical composition(mass fraction)(wt.%) of the L458

Element Min Max Similar

Mechanical Properties of steel grade L458

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
495 (≥) 416 (≥) 31 42 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade L458

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
12 - -     0.23 -  
839 929 - 23.3 122   -  
357 - 11 33.2   424 212

Heat Treatment of steel grade L458

Heat treated : 1365°C - 1551°C

Technological Curves of steel grade L458

Cross Reference Table (Equivalent Grade) of L458

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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