Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
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SAE A 403 CRS31725| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Stainless Steels | A 403 CRS31725 | Austenite | USA - SAE , A 403/A 403M (2012) - Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.03 | ||
| Mn | - | 2.00 | ||
| Si | - | 1.00 | ||
| P | - | 0.045 | ||
| S | - | 0.03 | ||
| Cr | 18.00 | 20.00 | ||
| Ni | 13.50 | 17.50 | ||
| Mo | 4.00 | 5.00 | ||
| N | - | 0.10 |
| 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) |
|---|---|---|---|---|---|---|
| 723 (≥) | 535 (≥) | 22 | 22 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 342 |
| 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 |
|---|---|---|---|---|---|---|---|
| 659 (≥) | 616 (≥) | 12 | 14 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 242 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 391 | 736 | 254 |
| 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 167 S31725 | SAE | USA | Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip |
| A 240 S31725 | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 249 S31725 | SAE | USA | Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes |
| A 269 S31725 | SAE | USA | Seamless and Welded Austenitic Stainless Steel Tubing for General Service |
| A 276 S31725 | SAE | USA | Stainless Steel Bars and Shapes |
| A 312 S31725 | SAE | USA | Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes |
| A 358 S31725 | SAE | USA | Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications |
| A 376 S31725 | SAE | USA | Seamless Austenitic Steel Pipe for High-Temperature Central-Station Service |
| A 403 CRS31725 | SAE | USA | Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings |
| A 403 WP S31725 | SAE | USA | Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings |
| A 409 S31725 | SAE | USA | Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service |
| A 479 S31725 | SAE | USA | Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels |
| A 943 S31725 | SAE | USA | Spray-Formed Seamless Austenitic Stainless Steel Pipes |
| A 988 S31725 | SAE | USA | Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service |
| S31725 | AISI | USA | Austenitic Chromium Nickel Molybdenum Stainless Steel |
| SA-240 S31725 | AMS | USA | Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| SA-249 S31725 | AMS | USA | Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes |
| SA-276 S31725 | AMS | USA | Specification for Stainless Steel Bars and Shapes |
| SA-312 S31725 | AMS | USA | Specification for Seamless and Welded Austenitic Stainless Steel Pipes |
| SA-358 S31725 | AMS | USA | Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature Service |