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AMS SB-688 N08366 Details

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SB-688 N08366 Application:Chromium-Nickel-Molybdenum-Iron (UNS N08366 and UNS N08367) Plate, Sheet, and Strip

Category Type Grade Microstructure Designations
Grades Stainless Steels SB-688 N08366 Austenite USA - AMS , SB-688 - Chromium-Nickel-Molybdenum-Iron (UNS N08366 and UNS N08367) Plate, Sheet, and Strip

Chemical composition(wt.%) of SB-688 N08366 grade: SB-688

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.035
Mn - 2.00
Si - 1.00
P - 0.03
S - 0.03
Cr 20.00 22.00
Ni 23.50 25.50
Mo 6.00 7.00

Chromium-Nickel-Molybdenum-Iron (UNS N08366 and UNS N08367) Plate, Sheet, and Strip

Mechanical properties of grade SB-688 N08366 SB-688

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)
495 (≥) 382 (≥) 13 21 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical properties of grade SB-688 N08366 SB-688

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
964 (≥) 349 (≥) 13 23 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 241
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
977 782 936

SB-688 N08366 - 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
B 688 N08366 SAE USA
Chromium-Nickel-Molybdenum-Iron (UNS N08366 and UNS N08367) Plate, Sheet, and Strip
B 690 N08366 SAE USA
Iron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 and UNS N08367) Seamless Pipe and Tube
B 691 N08366 SAE USA
Iron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 and UNS N08367) Rod, Bar, and Wire
N08366 AISI USA
Austenitic Ni-Cr-Mo Stainless Steel
SB-688 N08366 AMS USA
Chromium-Nickel-Molybdenum-Iron (UNS N08366 and UNS N08367) Plate, Sheet, and Strip
SB-690 N08366 AMS USA
Iron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 and UNS N08367) Seamless Pipe and Tube
SB-691 N08366 AMS USA
Iron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 and UNS N08367) Rod, Bar, and Wire
A 213 N08367 SAE USA
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
A 240 N08367 SAE USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 249 N08367 SAE USA
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 269 N08367 SAE USA
Seamless and Welded Austenitic Stainless Steel Tubing for General Service
A 270 N08367 SAE USA
Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
A 276 N08367 SAE USA
Stainless Steel Bars and Shapes
A 312 N08367 SAE USA
Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
A 312 N08367 SAE USA
Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
A 358 N08367 SAE USA
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
A 409 N08367 SAE USA
Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
A 479 N08367 SAE USA
Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
A 688 N08367 SAE USA
Welded Austenitic Stainless Steel Feedwater Heater Tubes
A 813 N08367 SAE USA
Single- or Double-Welded Austenitic Stainless Steel Pipe

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