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FS 12 MD 4

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France AFNOR NF FS12MD4 Iron and steel. Wire rod in non-alloy and alloy steel for colled electrodes for gas shielded are welding and submerged arc welding. Grades and types and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: FS12MD4 / FS 12 MD 4
Category Grade Standard Region/Area Standard Content
Metals FS 12 MD 4 NF A35-056 France Iron and steel. Wire rod in non-alloy and alloy steel for colled electrodes for gas shielded are welding and submerged arc welding. Grades and types

Chemical composition(mass fraction)(wt.%) of the FS 12 MD 4

Element Min Max Similar
Ti - 0.0600 -
Si - 0.1000 -
S - 0.0250 -
P - 0.0250 -
Ni - 0.1500 -
Mo 0.4500 0.6000 -
Mn 0.9000 1.2000 -
Cu - 0.1200 -
Cr - 0.1500 -
C 0.0700 0.1400 -
Al - 0.0400 -

Mechanical Properties of steel grade FS 12 MD 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)
387 (≥) 979 (≥) 12 14 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade FS 12 MD 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
11 - -     0.22 -  
839 772 - 12.3 211   -  
496 - 24 41.2   123 313

Heat Treatment of steel grade FS 12 MD 4

Heat treated : 1745°C - 1248°C

Technological Curves of steel grade FS 12 MD 4

Cross Reference Table (Equivalent Grade) of FS 12 MD 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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Jiangyou Longhai Special Steel Co.,Ltd.

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