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1.8978

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EU EN 1.8978 易燃液体输送管线 - 钢管交货技术条件 - 第2部分：B级要求的管道 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 1.8978 / 1.8978
Category Grade Standard Region/Area Standard Content
Metals 1.8978 EN 10208-2 EU 易燃液体输送管线 - 钢管交货技术条件 - 第2部分：B级要求的管道

Chemical composition(mass fraction)(wt.%) of the 1.8978

Element Min Max Similar
V+Nb+Ti - 0.1500 -
V - 0.1000 -
Ti - 0.0600 -
Si - 0.4500 -
S - 0.0200 -
P - 0.0250 -
Other - - -
Ni - 0.3000 -
Nb - 0.0600 -
N - 0.0120 -
Mo - 0.1000 -
Mn - 1.8000 -
Cu - 0.2500 -
Cr - 0.3000 -
CEV - - -
C - 0.1600 -
Al 0.0150 0.0600 -

Mechanical Properties of steel grade 1.8978

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)
329 (≥) 155 (≥) 24 24 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical Properties of steel grade 1.8978

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 - -     0.12 -  
411 348 - 24.3 331   -  
411 - 44 33.2   231 444

Heat Treatment of steel grade 1.8978

Heat treated : 1245°C - 1746°C

Technological Curves of steel grade 1.8978

Cross Reference Table (Equivalent Grade) of 1.8978

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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