XM-5 Stainless Steels to ASTM A 581 / A 581M

XM-5 - Specification & Application

  • ASTM A 581 / A 581M - Free machining stainless and heat resisting steel wire
  • ASTM A 582/A 582M - Free-machining stainless steel bars

Free machining stainless and heat resisting steel wire

Chemical composition(wt.%) of XM-5 grade: to ASTM A 581 / A 581M

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.15
Si - 1.00
Mn 2.50 4.50
P - 0.2
S 0.15 -
Cr 17.0 19.0
Ni 7.00 10.0
Mo - 0.60

XM-5 - Detail

Free machining stainless and heat resisting steel wire

Mechanical properties of grade XM-5 ASTM A 581 / A 581M

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)
954 (≥) 296 (≥) 11 12 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical properties of grade XM-5 ASTM A 581 / A 581M

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
411 (≥) 887 (≥) 24 44 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 343
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
668 865 571

Equivalent Products

We can customize the production of XM-5 grade, contact us for the best solution.
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