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8MoB5-4

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EU EN 8MoB5-4 压力钢- 交货技术条件 - 第2部分：规定高温性能的非合金和合金钢管无缝钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 8MoB5-4 / 8MoB5-4
Category Grade Standard Region/Area Standard Content
Metals 8MoB5-4 EN 10216-2 EU 压力钢- 交货技术条件 - 第2部分：规定高温性能的非合金和合金钢管无缝钢管

Chemical composition(mass fraction)(wt.%) of the 8MoB5-4

Element Min Max Similar
C 0.0600 0.1000 -
Mn 0.6000 0.8000 -
P - 0.0250 -
S - 0.0100 -
Si 0.1000 0.3500 -
Cr - 0.2000 -
Mo 0.4000 0.5000 -
Cu - 0.3000 -
Ti - 0.0600 -
B 0.0020 0.0060 -
Al - 0.0600 -

Mechanical Properties of steel grade 8MoB5-4

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)
474 (≥) 126 (≥) 14 23 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical Properties of steel grade 8MoB5-4

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
23 - -     0.14 -  
246 665 - 24.3 323   -  
359 - 21 21.2   432 342

Heat Treatment of steel grade 8MoB5-4

Heat treated : 1291°C - 1528°C

Technological Curves of steel grade 8MoB5-4

Cross Reference Table (Equivalent Grade) of 8MoB5-4

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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