STS444TP Stainless Steels to D 3576 (2011)

STS444TP - Specification & Application

  • D 3576 (2011) - Stainless steel pipes
  • D 9536 (2011) - Stainless lined steel pipe

Stainless lined steel pipe

Chemical composition(wt.%) of STS444TP grade: to D 3576 (2011)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.025
Si - 1.00
Mn - 1.00
P - 0.040
S - 0.030
Cr 17.00 20.00
Ni - 0.60
Mo 1.75 2.50
N - 0.025
Ti,Nb,Zr 8×(C%+N%) 0.80

STS444TP - Detail

Stainless lined steel pipe

Mechanical properties of grade STS444TP D 3576 (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)
737 (≥) 327 (≥) 44 33 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical properties of grade STS444TP D 3576 (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
815 (≥) 794 (≥) 12 11 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 122
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
622 274 449

Equivalent Grade

Equivalent Products

We can customize the production of STS444TP grade, contact us for the best solution.
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