A 959 Type XM-17 Stainless Steels to A 959 (2011)

A 959 Type XM-17 - Specification & Application

  • A 959 (2011) - Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels

Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Chemical composition(wt.%) of A 959 Type XM-17 grade: to A 959 (2011)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 0.75
Mn 7.50 9.00
P - 0.045
S - 0.03
Cr 17.5 22.0
Ni 5.00 7.00
Mo 2.00 3.00
N 0.25 0.50

A 959 Type XM-17 - Detail

A 959 Type XM-17

Mechanical properties of grade A 959 Type XM-17 A 959 (2011)

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)
569 (≥) 347 (≥) 11 14 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical properties of grade A 959 Type XM-17 A 959 (2011)

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
475 (≥) 654 (≥) 11 43 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 131
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
535 443 915
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