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AMS SA-268 S44400 Details
AMS SA-268 S44400 Standard Download
Category | Type | Grade | Microstructure | Designations |
---|---|---|---|---|
Grades | Stainless Steels | SA-268 S44400 | Ferrite | USA - AMS , SA-268/SA-268M - Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service |
Elements | Min.(≥) | Max.(≤) | Similar | Remarks |
---|---|---|---|---|
C | - | 0.025 | ||
Mn | - | 1.00 | ||
Si | - | 1.00 | ||
P | - | 0.04 | ||
S | - | 0.03 | ||
Cr | 17.50 | 19.50 | ||
Ni | - | 1.00 | ||
Mo | 1.75 | 2.50 | ||
N | - | 0.035 |
Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
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) |
---|---|---|---|---|---|---|
186 (≥) | 634 (≥) | 34 | 24 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 414 |
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 |
---|---|---|---|---|---|---|---|
955 (≥) | 187 (≥) | 43 | 23 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 314 | |
Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
685 | 839 | 583 |
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 |
Grade | Standard | Country | Application |
---|---|---|---|
A 176 S44400 | SAE | USA | Stainless and Heat-Resisting Chromium Steel Plate, Sheet, and Strip |
A 240 S44400 | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
A 268 S44400 | SAE | USA | Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service |
A 276 S44400 | SAE | USA | Stainless Steel Bars and Shapes |
A 554 S44400 | SAE | USA | Welded Stainless Steel Mechanical Tubing |
A 580 S44400 | SAE | USA | Stainless Steel Wire |
S44400 | AISI | USA | Ferritic Chromium Molybdenum Stainless Steel (18Cr-2Mo) |
SA-240 S44400 | AMS | USA | Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
SA-268 S44400 | AMS | USA | Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service |
SA-276 S44400 | AMS | USA | Specification for Stainless Steel Bars and Shapes |
SA-479 S44400 | AMS | USA | Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels |
A 479 S44401 | SAE | USA | Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels |
A 493 S44401 | SAE | USA | Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging |
A 580 S44401 | SAE | USA | Stainless Steel Wire |
S44401 | AISI | USA | Chromium Molybdenum Stainless Steel |
SUS 444 | JIS | Japan | Hot-rolled stainless steel plates, sheet and strip |
SUS 444 | JIS | Japan | Cold-rolled stainless steel plate, sheet and strip |
SUS 444 | JIS | Japan | Hot-formed stainless steel sections |
SUS 444 | JIS | Japan | Cold-formed stainless steel sections |
SUS 444 TB | JIS | Japan | Stainless steel boiler and heat exchanger tubes |