Grade 2 Class 1 Type 4 Stainless Steels to SAE J 471 (1973)

Grade 2 Class 1 Type 4 - Specification & Application

  • SAE J 471 (1973) - Sintered powder metal parts: Ferrous

Sintered powder metal parts: Ferrous

Chemical composition(wt.%) of Grade 2 Class 1 Type 4 grade: to SAE J 471 (1973)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.05
Si - 0.20
Mn - 0.50
P - -
S - -
Ni - remaining
Cr 15.00 17.00
Al 4.00 5.00
Cu - -
Ti - 0.50
Fe 2.00 4.00
N - -
Mo - 0.50
B - 0.006
Zr - 0.05

Grade 2 Class 1 Type 4 - Detail

Sintered powder metal parts: Ferrous

Mechanical properties of grade Grade 2 Class 1 Type 4 SAE J 471 (1973)

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
314 (≥) 471 (≥) 23 32 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical properties of grade Grade 2 Class 1 Type 4 SAE J 471 (1973)

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
632 (≥) 957 (≥) 42 21 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 114
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
756 642 279

Equivalent Products

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