HS-21 Stainless Steels to SAE J 467 (1968)

HS-21 - Specification & Application

  • SAE J 467 (1968) - Special Purpose Alloys ("Superalloys")

Special Purpose Alloys ("Superalloys")

Chemical composition(wt.%) of HS-21 grade: to SAE J 467 (1968)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.25
Si - -
Mn - -
Ni - 2.50
Cr - 27.00
Al - -
Cu - -
Ti - -
Fe - 1.75
Mo - 5.50
Co - remaining
B - 0.007

HS-21 - Detail

Special Purpose Alloys ("Superalloys")

Mechanical properties of grade HS-21 SAE J 467 (1968)

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)
992 (≥) 648 (≥) 12 44 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical properties of grade HS-21 SAE J 467 (1968)

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
292 (≥) 774 (≥) 43 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 134
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
759 741 692

Equivalent Grade

Equivalent Products

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