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SAE A 249 S34700 Details

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A 249 S34700 Application:Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Category Type Grade Microstructure Designations
Grades Stainless Steels A 249 S34700 Austenite USA - SAE , A 249/A 249M (2010) - Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Chemical composition(wt.%) of A 249 S34700 grade: A 249/A 249M (2010)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Mn - 2.00
Si - 1.00
P - 0.045
S - 0.03
Cr 17.00 19.00
Ni 9.00 13.00
Ta - 1.10
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Mechanical properties of grade A 249 S34700 A 249/A 249M (2010)

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)
111 (≥) 134 (≥) 14 34 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical properties of grade A 249 S34700 A 249/A 249M (2010)

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
673 (≥) 162 (≥) 12 11 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 343
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
265 563 374

A 249 S34700 - 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 S34700 SAE USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 249 S34700 SAE USA
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 269 S34700 SAE USA
Seamless and Welded Austenitic Stainless Steel Tubing for General Service
A 276 S34700 SAE USA
Stainless Steel Bars and Shapes
A 313 S34700 SAE USA
Stainless Steel Spring Wire
A 314 S34700 SAE USA
Stainless Steel Billets and Bars for Forging
A 358 S34700 SAE USA
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
A 409 S34700 SAE USA
Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
A 473 S34700 SAE USA
Stainless Steel Forgings
A 580 S34700 SAE USA
Stainless Steel Wire
A 632 S34700 SAE USA
Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service
A 778 S34700 SAE USA
Welded, Unannealed Austenitic Stainless Steel Tubular Products
A 813 S34700 SAE USA
Single- or Double-Welded Austenitic Stainless Steel Pipe
A 814 S34700 SAE USA
Cold-Worked Welded Austenitic Stainless Steel Pipe
A 965 S34700 SAE USA
Steel Forgings, Austenitic, for Pressure and High Temperature Parts
F738 Class A2-50 S34700 SAE USA
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F738 Class A2-70 S34700 SAE USA
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F738 Class A2-80 S34700 SAE USA
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F836 Class A2-50 S34700 SAE USA
Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric)
F836 Class A2-70 S34700 SAE USA
Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric)

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