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B.S. T.75 Details

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T.75 Application:Specification for low carbon 17/12 chromium-nickel-molybdenum corrosion-resisting steel tube (500 N/mm2)

Category Type Grade Designations
Grades Stainless Steels T.75 UK - B.S. , BS T 75 - Specification for low carbon 17/12 chromium-nickel-molybdenum corrosion-resisting steel tube (500 N/mm2)

Chemical composition(wt.%) of T.75 grade: BS T 75

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.030
Si 0.20 1.00
Mn 0.50 2.00
P - 0.035
S - 0.025
Cr 16.50 18.50
Ni 11.00 14.00
Mo 2.25 3.00
Nb/Ti - -
Specification for low carbon 17/12 chromium-nickel-molybdenum corrosion-resisting steel tube (500 N/mm2)

Mechanical properties of grade T.75 BS T 75

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)
887 (≥) 465 (≥) 24 21 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical properties of grade T.75 BS T 75

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
282 (≥) 231 (≥) 44 42 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 142
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
984 356 318

T.75 - Form of Supply

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

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
T.75 B.S. UK
Specification for low carbon 17/12 chromium-nickel-molybdenum corrosion-resisting steel tube (500 N/mm2)
75 GOST Russia
Spring carbon and alloy steel bars. Specifications

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