A 268 S44400 Stainless Steels to A 268/A 268M (2010)

A 268 S44400 - 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 S44400 grade: to A 268/A 268M (2010)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.025
Mn - 1.00
Si - 1.00
P - 0.04
S - 0.03
Cr 17.50 19.50
Ni - 1.00
Mo 1.75 2.50
N - 0.035

A 268 S44400 - Detail

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

Mechanical properties of grade A 268 S44400 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)
473 (≥) 229 (≥) 14 32 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical properties of grade A 268 S44400 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
445 (≥) 624 (≥) 43 42 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 211
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
875 955 743

Equivalent Products

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