Type I

ASTM A447/A447M-1998 - Steel Castings, Chromium-Nickel-Iron Alloy (25-12 Class),for High-Temperature Service

This page provides Type I datasheet, Type I mechanical properties, chemical element Type I, technical specifications of Type I steel material properties. Type I performance specifications.

Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy Type I ASTM USA Steel Castings, Chromium-Nickel-Iron Alloy (25-12 Class),for High-Temperature Service
N08007
J94203
J94204
J94603
WCA
WCB
WCC
J02502
J03002
J02503
Datasheet for:Steel Grades:Special Alloy:Type I

Chemical composition(mass fraction)(wt.%) of the Type I

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%)
0.20-0.45 ≤1.75 ≤2.5 ≤0.05 ≤0.05 23.0-28.0 10.0-14.0 ≤0.2

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade Type I

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 (≥) 646 (≥) 44 22 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 414
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
21 - -     0.21 -  
145 361 - 41.3 342   -  
537 - 11 34.2   241 141
Heat treated : 1221°C - 1685°C
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
Type410S UNS USA
Martensitic special steel
Type410S UNS USA
Martensitic special steel
Type410Cb(XM-30) UNS USA
Martensitic special steel
Type410Cb(XM-30) UNS USA
Martensitic special steel
Type418(GreekAscollOy) UNS USA
Type418(GreekAscollOy) UNS USA
S42023 UNS USA
Martensitic special steel
S42023 UNS USA
Martensitic special steel
Type420FSe UNS USA
Martensitic special steel
Type420FSe UNS USA
Martensitic special steel
Type440F UNS USA
Martensitic special steel
Type440F UNS USA
Martensitic special steel
PH15-7MO(Type632) UNS USA
Martensitic special steel
PH15-7MO(Type632) UNS USA
Martensitic special steel
AM-350(Type633) UNS USA
precipitation hardening
AM-350(Type633) UNS USA
precipitation hardening
AM-350(Type633) UNS USA
precipitation hardening
AM-350(Type633) UNS USA
precipitation hardening
AM-355(Type634) UNS USA
precipitation hardening
AM-355(Type634) UNS USA
precipitation hardening
Contact Suppliers with your enquiries for Type I any of the shape and size.

Haihong International Trade (HK) CO., Limited

Stainless Steel, Special Steel, Compressor Blading, Turbine Blading, Superalloy Supplier.
Type I can be supplied as steel plate/ sheet, round steel bar, steel tube/pipe, steel stripe, steel billet, steel ingot, steel wire rods. electroslag, forged ring/ block,etc.
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