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P 420 ML 2

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France AFNOR NF P420ML2 压力平板钢产品-第5部分:可焊接细晶钢，热机械轧制 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: P420ML2 / P 420 ML 2
Category Grade Standard Region/Area Standard Content
Metals P 420 ML 2 NF EN 10028-5 France 压力平板钢产品-第5部分:可焊接细晶钢，热机械轧制

Chemical composition(mass fraction)(wt.%) of the P 420 ML 2

Element Min Max Similar
V - 0.1000 -
Ti - 0.0500 -
Si - 0.5000 -
S - 0.0150 -
P - 0.0200 -
Ni - 0.5000 -
Nb+Ti+V - 0.1500 -
Nb - 0.0500 -
N - 0.0200 -
Mo - 0.2000 -
Mn - 1.7000 -
Cr+Cu+Mo - 0.6000 -
CEV - 0.4300 -
C - 0.1600 -
Al 0.0200 - -

Mechanical Properties of steel grade P 420 ML 2

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)
429 (≥) 779 (≥) 32 14 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 411

Physical Properties of steel grade P 420 ML 2

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
31 - -     0.14 -  
178 258 - 44.3 243   -  
391 - 34 21.2   321 411

Heat Treatment of steel grade P 420 ML 2

Heat treated : 1793°C - 1659°C

Technological Curves of steel grade P 420 ML 2

Cross Reference Table (Equivalent Grade) of P 420 ML 2

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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