A 493 Type XM-7 Stainless Steels to A 493

A 493 Type XM-7 - Specification & Application

  • A 493 - Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

Chemical composition(wt.%) of A 493 Type XM-7 grade: to A 493

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.03
Cr 17.0 19.0
Ni 8.00 10.0
Cu 3.00 4.00

A 493 Type XM-7 - Detail

Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

Mechanical properties of grade A 493 Type XM-7 A 493

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)
752 (≥) 962 (≥) 31 23 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical properties of grade A 493 Type XM-7 A 493

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
386 (≥) 859 (≥) 44 22 31 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
381 138 523

Equivalent Products

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