Grades | Stainless Steels | S.125

B.S. S.125

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S.125 Application:Specification for aircraft material. 23/14 chromium-nickel heat-resisting steel (titanium stabilized) (35 tonf/sq in: limiting ruling section 6 in)

Chemical composition(mass fraction)(wt.%) of the S.125
Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.15
Si 0.20 1.00
Mn 0.50 2.00
P - 0.035
S - 0.025
Cr 22.00 25.00
Ni 13.00 16.00
Mo - -
Ti - 4×C

Mechanical properties of grade S.125

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
963 (≥) 624 (≥) 34 43 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical properties of grade S.125

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
971 (≥) 798 (≥) 14 41 23 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
- - -
715 663 446 - - -

S.125 Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED