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347S51 Application:austenitic special steel
Category Type Steel grade Country
Grades Special Alloy 347S51 UK

Chemical composition % of the ladle analysis of grade 347S51

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Nb(%)
0.04-0.1O Max 1.00 Max 2.00 Max 0.04 Max 0.03 17.0-19.0 9.00-13.0 10×CMax 1.20
347S51
Mechanical properties of grade 347S51
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)
473 (≥) 661 (≥) 44 32 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 434
Physical properties of grade 347S51
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
661 (≥) 964 (≥) 21 43 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 234
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
941 672 627
347S51 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
347S51 UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes

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