ACX 903 Stainless Steels

ACX 903 - Specification & Application

Long Product Stainless Steel Grades

Chemical composition(wt.%) of ACX 903 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Si - 0.75
Mn 4.00 5.00
P - 0.030
S - 0.010
Cr 19.50 21.50
Ni 1.00 3.00
Mo 0.10 0.60
N 0.05 0.17

ACX 903 - Detail

Long Product Stainless Steel Grades

Mechanical properties of grade ACX 903

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)
488 (≥) 922 (≥) 24 14 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical properties of grade ACX 903

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
538 (≥) 532 (≥) 33 23 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 434
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
239 699 199

Equivalent Grade

Equivalent Products

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