SUS 321HTP Stainless Steels to G 3459 (2012)

SUS 321HTP - Specification & Application

  • G 3459 (2012) - Stainless steel pipes

Stainless steel pipes

Chemical composition(wt.%) of SUS 321HTP grade: to G 3459 (2012)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.04 0.10
Si - 0.75
Mn - 2.00
P - 0.03
S - 0.03
Cr 17.00 20.00
Ni 9.00 13.00
Mo 9.00 13.00
Ti 4×C% 0.60

SUS 321HTP - Detail

Stainless steel pipes

Mechanical properties of grade SUS 321HTP G 3459 (2012)

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)
295 (≥) 157 (≥) 21 43 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical properties of grade SUS 321HTP G 3459 (2012)

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
826 (≥) 525 (≥) 21 41 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 114
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
229 267 385

Equivalent Grade

Equivalent Products

We can customize the production of SUS 321HTP grade, contact us for the best solution.
sales@specificsteel.com