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SAE A 789 S32550 Details

A 789 S32550 Application:Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

Category Type Grade Microstructure Designations
Grades Stainless Steels A 789 S32550 Austenitic-Ferritic(Duplex steel) USA - SAE , A 789/A 789M (2013) - Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

Chemical composition(wt.%) of A 789 S32550 grade: A 789/A 789M (2013)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.04
Mn - 1.50
Si - 1.00
P - 0.04
S - 0.03
Cr 24.00 27.00
Ni 4.50 6.50
Mo 2.00 4.00
N 0.10 0.25
Cu 1.50 2.50
Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

Mechanical properties of grade A 789 S32550 A 789/A 789M (2013)

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)
467 (≥) 839 (≥) 41 44 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical properties of grade A 789 S32550 A 789/A 789M (2013)

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
838 (≥) 645 (≥) 23 11 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 223
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
556 176 884

A 789 S32550 - 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 1049 S32550 SAE USA
Stainless Steel Forgings, Ferritic/Austenitic (Duplex), for Pressure Vessels and Related Components
A 240 S32550 SAE USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 276 S32550 SAE USA
Stainless Steel Bars and Shapes
A 473 S32550 SAE USA
Stainless Steel Forgings
A 479 S32550 SAE USA
Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
A 511 S32550 SAE USA
Seamless Stainless Steel Mechanical Tubing
A 789 S32550 SAE USA
Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
A 790 S32550 SAE USA
Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
A 815 CRS32550 SAE USA
Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
A 815 WPS32550 SAE USA
Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
A 928 S32550 SAE USA
Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal
A 949 S32550 SAE USA
Spray-Formed Seamless Ferritic/Austenitic Stainless Steel Pipe
S32550 AISI USA
Duplex (Austenitic-Ferritic) Chromium Nickel Molybdenum Copper Nitrogen Stainless Steel
SA-240 S32550 AMS USA
Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
SA-276 S32550 AMS USA
Specification for Stainless Steel Bars and Shapes
SA-479 S32550 AMS USA
Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
SA-789 S32550 AMS USA
Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service
SA-790 S32550 AMS USA
Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Pipe
SA-815 CRS32550 AMS USA
Specification for Wrought Ferritic, Ferritic /Austenitic, and Martensitic Stainless Steel Piping Fittings
SA-815 WPS32550 AMS USA
Specification for Wrought Ferritic, Ferritic /Austenitic, and Martensitic Stainless Steel Piping Fittings

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