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SAE A 789 S32950 Details

A 789 S32950 Application:Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

Category Type Grade Microstructure Designations
Grades Stainless Steels A 789 S32950 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 S32950 grade: A 789/A 789M (2013)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Mn - 2.00
Si - 0.60
P - 0.035
S - 0.01
Cr 26.00 29.00
Ni 3.50 5.20
Mo 1.00 2.50
N 0.15 0.25
Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

Mechanical properties of grade A 789 S32950 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)
863 (≥) 985 (≥) 41 24 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical properties of grade A 789 S32950 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
116 (≥) 167 (≥) 14 34 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 433
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
271 379 782

A 789 S32950 - 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 S32950 SAE USA
Stainless Steel Forgings, Ferritic/Austenitic (Duplex), for Pressure Vessels and Related Components
A 1082 S32950 SAE USA
High Strength Precipitation Hardening and Duplex Stainless Steel Bolting for Special Purpose Applications
A 240 S32950 SAE USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 314 S32950 SAE USA
Stainless Steel Billets and Bars for Forging
A 473 S32950 SAE USA
Stainless Steel Forgings
A 479 S32950 SAE USA
Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
A 511 S32950 SAE USA
Seamless Stainless Steel Mechanical Tubing
A 789 S32950 SAE USA
Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
A 790 S32950 SAE USA
Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
A 815 CRS32950 SAE USA
Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
A 815 WPS32950 SAE USA
Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
A 928 S32950 SAE USA
Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal
A 949 S32950 SAE USA
Spray-Formed Seamless Ferritic/Austenitic Stainless Steel Pipe
A 959 S32950 SAE USA
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
A 988 S32950 SAE USA
Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service
S32950 AISI USA
Duplex (Austenitic-Ferritic) Chromium Nickel Molybdenum Nitrogen Stainless Steel
SA-240 S32950 AMS USA
Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
SA-479 S32950 AMS USA
Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
SA-789 S32950 AMS USA
Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service
SA-790 S32950 AMS USA
Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Pipe

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