STS309S

STS309S Stainless Steels to D 3692 (2001)

STS309S - 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

Stainless steel bars

Chemical composition(wt.%) of STS309S 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 22.00 24.00
Ni 12.00 15.00
Mo - -
N - -

STS309S - Detail

Stainless steel bars

Mechanical properties of grade STS309S 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)
374 (≥) 714 (≥) 24 14 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical properties of grade STS309S 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
665 (≥) 147 (≥) 43 14 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 323
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
747 411 581

Equivalent Grade

1 STS309S 2 STS309S 3 STS309STP 4 STS309STPY 5 STS309STB

Equivalent Products

Product shapes we supply:

We can customize the production of STS309S grade, contact us for the best solution.
–sales@specificsteel.com