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YB 304 L Details

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304 L Application:Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

Category Type Grade Microstructure Designations
Grades Stainless Steels 304 L Austenite USA - YB , A 182/A 182M (2012) - Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
A 213/A 213M (2011) - Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
A 240/A 240M (2012) - Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 249/A 249M (2010) - Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 269 (2010) - Seamless and Welded Austenitic Stainless Steel Tubing for General Service
A 270 (2010) - Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
A 276 (2010) - Stainless Steel Bars and Shapes
A 312/A 312M (2012) - Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
A 314 (2008) - Stainless Steel Billets and Bars for Forging
A 358/A 358M (2008) - Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
A 403/A 403M (2012) - Wrought Austenitic Stainless Steel Piping Fittings
A 409/A 409M (2009) - Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
A 473 (2009) - Stainless Steel Forgings
A 478 (2008) - Chromium-Nickel Stainless Steel Weaving and Knitting Wire
A 479/A 479M (2011) - Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
A 493 (2009) - Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
A 511/A 511M (2012) - Seamless Stainless Steel Mechanical Tubing
A 554 (2011) - Welded Stainless Steel Mechanical Tubing
A 580/A 580M (2012) - Stainless Steel Wire
A 632 (2009) - Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service
A 666 (2010) - Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar
A 688/A 688M (2012) - Welded Austenitic Stainless Steel Feedwater Heater Tubes
A 774/A 774M (2009) - As-Welded Wrought Austenitic Stainless Steel Fittings for General Corrosive Service at Low and Moderate Temperatures
A 778 (2009) - Welded, Unannealed Austenitic Stainless Steel Tubular Products
A 793 (2009) - Rolled Floor Plate, Stainless Steel
A 813/A 813M (2009) - Single- or Double-Welded Austenitic Stainless Steel Pipe
A 814/A 814M (2008) - Cold-Worked Welded Austenitic Stainless Steel Pipe
A 943/A 943M (2009) - Spray-Formed Seamless Austenitic Stainless Steel Pipes
A 959 (2011) - Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
A 965/A 965M (2012) - Steel Forgings, Austenitic, for Pressure and High Temperature Parts
SAE AMS 5511H (2003) - Steel, Corrosion-Resistant, Sheet, Strip, and Plate 19Cr - 9.5Ni (304L) Solution Heat Treated
SAE AMS 5647J (2011) - Steel, Corrosion-Resistant, Bars, Wire, Forgings, Tubing, And Rings 19Cr - 9.5Ni Solution Heat Treated
SAE AMS-QQ-S-763B (1998) - Steel, Corrosion Resistant, Bars, Wire, Shapes, and Forgings
SAE J 2515 (1999) - High temperature materials for exhaust manifolds
SAE J 405 (1998) - Chemical compositions of SAE wrought stainless steels
SAE J 467 (1968) - Special Purpose Alloys ("Superalloys")

Chemical composition(wt.%) of 304 L grade: A 182/A 182M (2012)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.030
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.03
Cr 18.0 20.0
Ni 8.00 10.0
N - 0.10
Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

Mechanical properties of grade 304 L A 182/A 182M (2012)

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)
721 (≥) 546 (≥) 41 34 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical properties of grade 304 L A 182/A 182M (2012)

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
967 (≥) 357 (≥) 11 24 44 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
569 229 117

304 L - Form of Supply

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
304 L YB USA
Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
304L UNS USA
Steel, Corrosion-Resistant, Sheet, Strip, and Plate 19Cr - 9.5Ni (304L) Solution Heat Treated
304L ASME USA
Tubing, steel, corrosion and heat resistant, for aerospace vehicle hydraulic systems assembled by brazing
A 167 Type 304L SAE USA
Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip
A 182 F 304L SAE USA
Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
A 213 TP304L SAE USA
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
A 240 Type 304L SAE USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 249 TP304L SAE USA
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 269 TP304L SAE USA
Seamless and Welded Austenitic Stainless Steel Tubing for General Service
A 270 TP304L SAE USA
Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
A 276 304L SAE USA
Stainless Steel Bars and Shapes
A 314 304L SAE USA
Stainless Steel Billets and Bars for Forging
A 336 Grade F304L SAE USA
Alloy Steel Forgings for Pressure and High-Temperature Parts
A 358 304L SAE USA
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
A 403 WP 304L SAE USA
Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
A 409 TP304L SAE USA
Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
A 473 304L SAE USA
Stainless Steel Forgings
A 478 Type 304L SAE USA
Chromium-Nickel Stainless Steel Weaving and Knitting Wire
A 479 304L SAE USA
Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
A 493 Type 304L SAE USA
Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

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