304 L chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 304 L

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YB 304 L

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This page is mainly introduced the 304 L chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 304 L,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
  • Steel Garde:304 L
  • Type:Stainless Steels
  • Country:USA
  • Standard:YB
  • Standard Number:
    ITEM Standard Number Descriptions
    1 A 182/A 182M (2012) Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
    2 A 213/A 213M (2011) Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
    3 A 240/A 240M (2012) Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
    4 A 249/A 249M (2010) Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
    5 A 269 (2010) Seamless and Welded Austenitic Stainless Steel Tubing for General Service
    6 A 270 (2010) Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
    7 A 276 (2010) Stainless Steel Bars and Shapes
    8 A 312/A 312M (2012) Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
    9 A 314 (2008) Stainless Steel Billets and Bars for Forging
    10 A 358/A 358M (2008) Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
    11 A 403/A 403M (2012) Wrought Austenitic Stainless Steel Piping Fittings
    12 A 409/A 409M (2009) Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
    13 A 473 (2009) Stainless Steel Forgings
    14 A 478 (2008) Chromium-Nickel Stainless Steel Weaving and Knitting Wire
    15 A 479/A 479M (2011) Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
    16 A 493 (2009) Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
    17 A 511/A 511M (2012) Seamless Stainless Steel Mechanical Tubing
    18 A 554 (2011) Welded Stainless Steel Mechanical Tubing
    19 A 580/A 580M (2012) Stainless Steel Wire
    20 A 632 (2009) Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service
    21 A 666 (2010) Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar
    22 A 688/A 688M (2012) Welded Austenitic Stainless Steel Feedwater Heater Tubes
    23 A 774/A 774M (2009) As-Welded Wrought Austenitic Stainless Steel Fittings for General Corrosive Service at Low and Moderate Temperatures
    24 A 778 (2009) Welded, Unannealed Austenitic Stainless Steel Tubular Products
    25 A 793 (2009) Rolled Floor Plate, Stainless Steel
    26 A 813/A 813M (2009) Single- or Double-Welded Austenitic Stainless Steel Pipe
    27 A 814/A 814M (2008) Cold-Worked Welded Austenitic Stainless Steel Pipe
    28 A 943/A 943M (2009) Spray-Formed Seamless Austenitic Stainless Steel Pipes
    29 A 959 (2011) Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
    30 A 965/A 965M (2012) Steel Forgings, Austenitic, for Pressure and High Temperature Parts
    31 SAE AMS 5511H (2003) Steel, Corrosion-Resistant, Sheet, Strip, and Plate 19Cr - 9.5Ni (304L) Solution Heat Treated
    32 SAE AMS 5647J (2011) Steel, Corrosion-Resistant, Bars, Wire, Forgings, Tubing, And Rings 19Cr - 9.5Ni Solution Heat Treated
    33 SAE AMS-QQ-S-763B (1998) Steel, Corrosion Resistant, Bars, Wire, Shapes, and Forgings
    34 SAE J 2515 (1999) High temperature materials for exhaust manifolds
    35 SAE J 405 (1998) Chemical compositions of SAE wrought stainless steels
    36 SAE J 467 (1968) Special Purpose Alloys ("Superalloys")
  • Metallographic Structure:Austenite
  • Application:Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

Chemical composition(mass fraction)(wt.%)

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

Mechanical Properties

Tensile strength 485~777 σb/MPa
Yield Strength 112 σ 0.2 ≥/MPa
Elongation 66 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 835~628 -
HRC 30 -

Physical Properties

Thermal expansion 13-30 e-6/K
Thermal conductivity 69-51 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9094-7553 째C
Density 4471-3846 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
304 L Stainless Steels Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download