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KS STS304 Details

Special alloys steel for chemical plant

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STS304 Application:Special alloys steel for chemical plant
Category Type Grade Microstructure Designations
Grades Stainless Steels STS304 Austenite Korea - KS , D 3534 (2002) - Cold rolled stainless steel strip for springs
D 3692 (2001) - Cold finished stainless steel bars
D 3698 (2008) - Cold rolled stainless steel plates, sheets and strip
D 3702 (2008) - Stainless steel wire rods
D 3703 (2007) - Stainless steel wires
D 3705 (2008) - Hot rolled stainless steel plates, sheets and strip
D 3706 (2008) - Stainless steel bars
D 3749 (2008) - Special alloys steel for chemical plant
Chemical composition(mass fraction)(wt.%)
Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.030
Cr 18.00 20.00
Ni 8.00 10.50
Mo - -
N - -
Mechanical properties of grade STS304
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)
916 (≥) 645 (≥) 42 23 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 423
Physical properties of grade STS304
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
228 (≥) 827 (≥) 44 33 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 342
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
392 654 635
STS304 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
STS304 KS Korea
Special alloys steel for chemical plant
STS304L KS Korea
Special alloys steel for chemical plant
STS304LTB KS Korea
Stainless steel for boiler and heat exchanger tubes
STS304LTBS KS Korea
Stainless steel sanitary pipes
STS304LTPY KS Korea
Large diameter welded stainless steel pipes
STS304LWSA KS Korea
Stainless steel wires for cold heading and cold forging
STS304LWSB KS Korea
Stainless steel wires for cold heading and cold forging
STS304LCA KS Korea
Cold - rolled formed stainless steel equal leg angles
STS304LFB KS Korea
Stainless steel blooms and billets for forgings
STS304LTP KS Korea
Stainless lined steel pipe
STS304N1 KS Korea
Stainless steel bars
STS304N2 KS Korea
Stainless steel bars
STS304LN KS Korea
Stainless steel bars
STS304J3 KS Korea
Stainless steel bars
STS304J3WSA KS Korea
Stainless steel wires for cold heading and cold forging
STS304J3WSB KS Korea
Stainless steel wires for cold heading and cold forging
STS304J1 KS Korea
Hot rolled stainless steel plates, sheets and strip
STS304J2 KS Korea
Hot rolled stainless steel plates, sheets and strip
STS304TKA KS Korea
Stainless steel pipes for machine and structural purposes
STS304TKC KS Korea
Stainless steel pipes for machine and structural purposes