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SAE A 409 S30940 Details

A 409 S30940 Application:Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service

Category Type Grade Microstructure Designations
Grades Stainless Steels A 409 S30940 Austenite USA - SAE , A 409/A 409M (2009) - Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service

Chemical composition(wt.%) of A 409 S30940 grade: A 409/A 409M (2009)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Mn - 2.00
Si - 1.00
P - 0.045
S - 0.03
Cr 22.00 24.00
Ni 12.00 15.00
Mo - -

Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service

Mechanical properties of grade A 409 S30940 A 409/A 409M (2009)

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)
979 (≥) 583 (≥) 13 33 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical properties of grade A 409 S30940 A 409/A 409M (2009)

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
439 (≥) 334 (≥) 24 31 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 144
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
916 574 137

A 409 S30940 - 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
A 240 S30940 SAE USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 249 S30940 SAE USA
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 276 S30940 SAE USA
Stainless Steel Bars and Shapes
A 314 S30940 SAE USA
Stainless Steel Billets and Bars for Forging
A 358 S30940 SAE USA
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
A 409 S30940 SAE USA
Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
A 478 S30940 SAE USA
Chromium-Nickel Stainless Steel Weaving and Knitting Wire
A 580 S30940 SAE USA
Stainless Steel Wire
A 813 S30940 SAE USA
Single- or Double-Welded Austenitic Stainless Steel Pipe
A 814 S30940 SAE USA
Cold-Worked Welded Austenitic Stainless Steel Pipe
S30940 AISI USA
Austenitic Chromium Nickel Columbium Heat Resisting Stainless Steel
SA 249 S30940 AMS USA
Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
SA-240 S30940 AMS USA
Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
SA-813 S30940 AMS USA
Specification for Single- or Double-Welded Austenitic Stainless Steel Pipe
SA-814 S30940 AMS USA
Specification for Cold-Worked Welded Austenitic Stainless Steel Pipe

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