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YB 304S Details

Stainless steel and heat resistant steel

YB 304S Standard Download

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304S Application:Stainless steel and heat resistant steel
Category Type Grade Microstructure Designations
Grades Stainless Steels 304S Austenite USA - YB ,
Chemical composition(mass fraction)(wt.%)
Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.01
Si - 1.00
Mn - 2.00
P - 0.25
S - 0.20
Cr 17.00 19.00
Ni 8.00 10.00
Mechanical properties of grade 304S
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)
636 (≥) 574 (≥) 22 32 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 332
Physical properties of grade 304S
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
642 (≥) 236 (≥) 33 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 131
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
799 424 316
304S 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
304S YB USA
Stainless steel and heat resistant steel
304S11 B.S. UK
Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes
304S11-E B.S. UK
Steels for pressure purposes. Specification for corrosion- and heat-resisting steels: plates, sheet and strip
304S11-LT B.S. UK
Steels for pressure purposes. Specification for corrosion- and heat-resisting steels: plates, sheet and strip
CFS 304S11 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
HFM 304S11 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
LW 304S11 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes
LWCF 304S11 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes
LWHT 304S11 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes
304S15 B.S. UK
Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes
304S31 B.S. UK
Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes
HFS 304S31 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
LW 304S31 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes
304S16 B.S. UK
Steel plate, sheet and strip. Specification for stainless and heat-resisting steel plate, sheet and strip
304S51 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
HFS 304S51 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
CFS 304S51 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
HFM 304S51 B.S. UK
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
304 S11 B.S. UK
Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes
304 S11E B.S. UK
Steels for pressure purposes. Specification for corrosion- and heat-resisting steels: plates, sheet and strip