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G78J-N7M4T

Favorite Datasheet

Japan JIS G78J-N7M4T Solid wires for MAG and MIG welding of atmospheric corrosion resisting steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: G78J-N7M4T / G78J-N7M4T
Category Grade Standard Region/Area Standard Content
Metals G78J-N7M4T JIS Z3315 Japan Solid wires for MAG and MIG welding of atmospheric corrosion resisting steel

Chemical composition(mass fraction)(wt.%) of the G78J-N7M4T

Element Min Max Similar
C - 0.1200 -
Mn 1.3000 1.7000 -
P - 0.0250 -
S - 0.0250 -
Si 0.3000 0.7000 -
Ni 3.2000 3.8000 -
Cr - 0.3000 -
Mo 0.6000 0.9000 -
Cu - 0.5000 -
Ti 0.0200 0.3000 -
Others total - 0.5000 -

Mechanical Properties of steel grade G78J-N7M4T

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)
719 (≥) 888 (≥) 31 43 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade G78J-N7M4T

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
24 - -     0.34 -  
694 453 - 14.3 224   -  
667 - 43 33.2   114 124

Heat Treatment of steel grade G78J-N7M4T

Heat treated : 1482°C - 1861°C

Technological Curves of steel grade G78J-N7M4T

Cross Reference Table (Equivalent Grade) of G78J-N7M4T

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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