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GFA

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Japan DAIDO GFA 热间工具钢（锻造型） and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GFA / GFA
Category Grade Standard Region/Area Standard Content
Metals GFA DAIDO HWTS Japan 热间工具钢（锻造型）

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

Element Min Max Similar
V - - 0.1300
Mo - - 0.5000
Cr - - 1.2000
Ni - - 2.0000
Mn - - 1.0000
Si - - 0.2000
C - - 0.5000

Mechanical Properties of steel grade GFA

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)
213 (≥) 755 (≥) 11 41 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade GFA

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
32 - -     0.41 -  
328 546 - 23.3 422   -  
719 - 43 13.2   211 112

Heat Treatment of steel grade GFA

Heat treated : 1853°C - 1935°C

Technological Curves of steel grade GFA

Cross Reference Table (Equivalent Grade) of GFA

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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