321S51(1105) Stainless Steels to BS 3605-1

321S51(1105) - Specification & Application

  • BS 3605-1 - Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes

Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes

Chemical composition(wt.%) of 321S51(1105) grade: to BS 3605-1

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.04 0.10
Si - 1.00
Mn - 2.00
P - 0.04
S - 0.03
Cr 17.00 19.00
Mo - -
Ni 9.00 12.00
Ti - 0.80

321S51(1105) - Detail

Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes

Mechanical properties of grade 321S51(1105) BS 3605-1

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)
918 (≥) 745 (≥) 32 31 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical properties of grade 321S51(1105) BS 3605-1

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
974 (≥) 573 (≥) 14 23 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 341
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
232 959 165

Equivalent Grade

Equivalent Products

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