SUS 321

SUS 321 Stainless Steels to G 4317 (2005)

SUS 321 - Specification & Application

  • G 4317 (2005) - Hot-formed stainless steel sections

Hot-formed stainless steel sections

Chemical composition(wt.%) of SUS 321 grade: to G 4317 (2005)

Elements Min.（≥） Max.（≤） Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.03
Cr 17.00 19.00
Ni 9.00 13.00
Mo - -
N - -
Ti 5×C％ -

SUS 321 - Detail

Hot-formed stainless steel sections

Mechanical properties of grade SUS 321 G 4317 (2005)

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)
695 (≥) 189 (≥) 33 13 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical properties of grade SUS 321 G 4317 (2005)

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
724 (≥) 767 (≥) 14 44 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 111
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
871 848 891

Equivalent Grade

1 KSUS321 2 SUS 321 3 SUS 321 4 SUS 321 5 SUS 321 6 SUS 321 7 SUS 321 8 SUS 321 9 SUS 321 10 SUS 321

Equivalent Products

Product shapes we supply:

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