305S11 Stainless Steels to BS 1554

305S11 - Specification & Application

  • BS 1554 - Specification for stainless and heat-resisting steel round wire
  • BS 2056 - Specification for stainless steel wire for mechanical springs

Specification for stainless steel wire for mechanical springs

Chemical composition(wt.%) of 305S11 grade: to BS 1554

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.030
Cr 17.00 19.00
Mo - -
Ni 11.00 13.00

305S11 - Detail

Specification for stainless steel wire for mechanical springs

Mechanical properties of grade 305S11 BS 1554

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)
321 (≥) 783 (≥) 21 34 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical properties of grade 305S11 BS 1554

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
871 (≥) 974 (≥) 43 33 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 433
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
623 919 575

Equivalent Grade

Equivalent Products

We can customize the production of 305S11 grade, contact us for the best solution.
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