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AMS SB-674 N08925 Details

SB-674 N08925 Application:Specification for UNS N08904, UNS N08925 and UNS N08926 Welded Tube

Category Type Grade Microstructure Designations
Grades Stainless Steels SB-674 N08925 Austenite USA - AMS , SB-674 - Specification for UNS N08904, UNS N08925 and UNS N08926 Welded Tube

Chemical composition(wt.%) of SB-674 N08925 grade: SB-674

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.02
Mn - 1.00
Si - 0.50
P - 0.045
S - 0.03
Cr 24.00 26.00
Ni 19.00 21.00
Mo 6.00 7.00
Cu 0.80 1.50
N 0.10 0.20

Specification for UNS N08904, UNS N08925 and UNS N08926 Welded Tube

Mechanical properties of grade SB-674 N08925 SB-674

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)
323 (≥) 556 (≥) 31 33 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical properties of grade SB-674 N08925 SB-674

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
467 (≥) 222 (≥) 43 24 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 412
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
443 665 248

SB-674 N08925 - 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 213 N08925 SAE USA
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
A 240 N08925 SAE USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 276 N08925 SAE USA
Stainless Steel Bars and Shapes
A 312 N08925 SAE USA
Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
A 479 N08925 SAE USA
Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
B 625 N08925 SAE USA
UNS N08925, UNS N08031, UNS N08932, UNS N08926, UNS N08354, and UNS R20033 Plate, Sheet, and Strip
B 649 N08925 SAE USA
Standard Specification for Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925, UNS N08031, UNS N08354, and UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire, and Ni-Cr-Fe-Mo-N Alloy (UNS N08936) Wire
B 673 N08925 SAE USA
Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Welded Pipe
B 674 N08925 SAE USA
Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Welded Tube
B 677 N08925 SAE USA
UNS N08925, UNS N08354, and UNS N08926 Seamless Pipe and Tube
N08925 AISI USA
Nickel Iron Chromium Molybdenum Copper Alloy
SB-625 N08925 AMS USA
UNS N08925, UNS N08031, UNS N08932, UNS N08926, UNS N08354, and UNS R20033 Plate, Sheet, and Strip
SB-649 N08925 AMS USA
Specification for Ni-Fe-Cr-Mo-Cu Low-Carbon Alloy (UNS N08904), Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925, UNS N08031, and UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire
SB-673 N08925 AMS USA
Specification for UNS N08904, UNS N08925 and N08926 Welded Pipe
SB-674 N08925 AMS USA
Specification for UNS N08904, UNS N08925 and UNS N08926 Welded Tube
SB-677 N08925 AMS USA
UNS N08925, UNS N08354, and UNS N08926 Seamless Pipe and Tube
Cronifer 40 B DIN Germany
Cronifer 40 B

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