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S315 Application:China structural steel and alloy steel
Category Type Steel grade Standard Country
Grades Special Alloy S315 GBT China

Chemical composition % of the ladle analysis of grade S315

C(%) Si(%) Mn(%) P(%) S(%)
Max 0.22 Max 0.35 0.75-1.35 0.03 0.03
S315
Mechanical properties of grade S315
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)
776 (≥) 836 (≥) 13 11 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 431
Physical properties of grade S315
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
168 (≥) 567 (≥) 22 31 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 143
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
841 355 929
S315 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
A 789 S31500 GBT China
Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
A 790 S31500 GBT China
Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
A 928 S31500 GBT China
Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal
A 949 S31500 GBT China
Spray-Formed Seamless Ferritic/Austenitic Stainless Steel Pipe
A 959 S31500 GBT China
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
S31500 GBT China
Duplex (Austenitic-Ferritic) Chromium Nickel Molybdenum Silicon Stainless Steel
SA-789 S31500 GBT China
Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service
SA-790 S31500 GBT China
Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Pipe

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