STS321 Stainless Steels to D 3692 (2001)

STS321 - Specification & Application

  • D 3692 (2001) - Cold finished stainless steel bars
  • D 3698 (2008) - Cold rolled stainless steel plates, sheets and strip
  • D 3702 (2008) - Stainless steel wire rods
  • D 3703 (2007) - Stainless steel wires
  • D 3705 (2008) - Hot rolled stainless steel plates, sheets and strip
  • D 3706 (2008) - Stainless steel bars
  • D 3749 (2008) - Special alloys steel for chemical plant

Special alloys steel for chemical plant

Chemical composition(wt.%) of STS321 grade: to D 3692 (2001)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.030
Cr 17.00 19.00
Ni 9.00 13.00
Mo - -
N - -
Ti 5×C% -

STS321 - Detail

Special alloys steel for chemical plant

Mechanical properties of grade STS321 D 3692 (2001)

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)
894 (≥) 495 (≥) 34 11 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical properties of grade STS321 D 3692 (2001)

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
919 (≥) 871 (≥) 41 12 12 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
862 313 877

Equivalent Products

We can customize the production of STS321 grade, contact us for the best solution.
sales@specificsteel.com