A 268 S44600 Stainless Steels to A 268/A 268M (2010)

A 268 S44600 - Specification & Application

  • A 268/A 268M (2010) - Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Chemical composition(wt.%) of A 268 S44600 grade: to A 268/A 268M (2010)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.02
Mn - 1.50
Si - 1.00
P - 0.04
S - 0.03
Cr 23.00 27.00
Ni - 0.50
Mo - -
N - 0.25

A 268 S44600 - Detail

Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Mechanical properties of grade A 268 S44600 A 268/A 268M (2010)

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)
311 (≥) 638 (≥) 13 21 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical properties of grade A 268 S44600 A 268/A 268M (2010)

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
595 (≥) 128 (≥) 14 43 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 321
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
224 856 822
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