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25 20 H

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France AFNOR NF 2520H 焊材 - 覆盖电极的用于不锈钢和耐热钢的手工电弧焊 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 2520H / 25 20 H
Category Grade Standard Region/Area Standard Content
Metals 25 20 H NF EN 1600 France 焊材 - 覆盖电极的用于不锈钢和耐热钢的手工电弧焊

Chemical composition(mass fraction)(wt.%) of the 25 20 H

Element Min Max Similar
Si - 1.2000 -
S - 0.0250 -
P+S - 0.0500 -
P - 0.0300 -
Ni 18.0000 22.0000 -
Mo - 0.7500 -
Mn - 2.5000 -
Fe - - -
Cu - 0.7500 -
Cr 23.0000 27.0000 -
C 0.3500 0.4500 -

Mechanical Properties of steel grade 25 20 H

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)
925 (≥) 576 (≥) 42 42 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade 25 20 H

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 - -     0.24 -  
731 697 - 24.3 133   -  
698 - 44 31.2   224 123

Heat Treatment of steel grade 25 20 H

Heat treated : 1216°C - 1511°C

Technological Curves of steel grade 25 20 H

Cross Reference Table (Equivalent Grade) of 25 20 H

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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