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STFA 25

Favorite Datasheet

Japan JIS STFA25 明火加热炉用钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STFA25 / STFA 25
Category Grade Standard Region/Area Standard Content
Metals STFA 25 JIS G3467 Japan 明火加热炉用钢管

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

Element Min Max Similar
Si - 0.5000 -
S - 0.0300 -
P - 0.0300 -
Mo 0.4500 0.6500 -
Mn 0.3000 0.6000 -
Cr 4.0000 6.0000 -
C - 0.1500 -

Mechanical Properties of steel grade STFA 25

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)
736 (≥) 189 (≥) 13 31 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade STFA 25

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
42 - -     0.44 -  
155 466 - 11.3 343   -  
141 - 42 13.2   322 114

Heat Treatment of steel grade STFA 25

Heat treated : 1423°C - 1264°C

Technological Curves of steel grade STFA 25

Cross Reference Table (Equivalent Grade) of STFA 25

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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