A 554 MT 309S Stainless Steels to A 554 (2011)

A 554 MT 309S - Specification & Application

  • A 554 (2011) - Welded Stainless Steel Mechanical Tubing

Welded Stainless Steel Mechanical Tubing

Chemical composition(wt.%) of A 554 MT 309S grade: to A 554 (2011)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.03
Cr 22.0 24.0
Ni 12.0 15.0

A 554 MT 309S - Detail

Welded Stainless Steel Mechanical Tubing

Mechanical properties of grade A 554 MT 309S A 554 (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)
194 (≥) 461 (≥) 11 21 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical properties of grade A 554 MT 309S A 554 (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
136 (≥) 488 (≥) 12 43 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 414
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
148 577 558

Equivalent Products

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