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318S17 Application:austenitic special steel
Category Type Steel grade Country
Grades Special Alloy 318S17 UK

Chemical composition % of the ladle analysis of grade 318S17

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) Nb(%)
Max 0.08 Max 1.00 Max 2.00 Max 0.045 Max 0.03 18.0-20.0 11.0-14.0 2.00-3.00 10×CMax 1.00
318S17
Mechanical properties of grade 318S17
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)
273 (≥) 536 (≥) 23 14 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 123
Physical properties of grade 318S17
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
633 (≥) 399 (≥) 34 23 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 434
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
773 182 597
318S17 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
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
318S17 UK
Specification for stainless and heat-resisting steel round wire

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