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YB 309S Details
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| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Stainless Steels | 309S | Austenite | USA - YB , A 213/A 213M (2011) - Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes A 240/A 240M (2012) - Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications A 249/A 249M (2010) - Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes A 276 (2010) - Stainless Steel Bars and Shapes A 312/A 312M (2012) - Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes A 314 (2008) - Stainless Steel Billets and Bars for Forging A 358/A 358M (2008) - Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications A 409/A 409M (2009) - Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service A 473 (2009) - Stainless Steel Forgings A 478 (2008) - Chromium-Nickel Stainless Steel Weaving and Knitting Wire A 479/A 479M (2011) - Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels A 511/A 511M (2012) - Seamless Stainless Steel Mechanical Tubing A 554 (2011) - Welded Stainless Steel Mechanical Tubing A 580/A 580M (2012) - Stainless Steel Wire A 813/A 813M (2009) - Single- or Double-Welded Austenitic Stainless Steel Pipe A 814/A 814M (2008) - Cold-Worked Welded Austenitic Stainless Steel Pipe A 943/A 943M (2009) - Spray-Formed Seamless Austenitic Stainless Steel Pipes A 959 (2011) - Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels SAE J 405 (1998) - Chemical compositions of SAE wrought stainless steels SAE J 467 (1968) - Special Purpose Alloys ("Superalloys") |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.08 | ||
| Si | - | 1.00 | ||
| Mn | - | 2.00 | ||
| P | - | 0.045 | ||
| S | - | 0.03 | ||
| Cr | 22.0 | 24.0 | ||
| Ni | 12.0 | 15.0 |
| 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) |
|---|---|---|---|---|---|---|
| 749 (≥) | 957 (≥) | 14 | 33 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 444 |
| 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 |
|---|---|---|---|---|---|---|---|
| 515 (≥) | 826 (≥) | 23 | 32 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 434 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 925 | 766 | 156 |
| 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 |
|---|---|---|---|
| 309S | UNS | USA | Chemical compositions of SAE wrought stainless steels |
| 309S | YB | USA | Chemical compositions of SAE wrought stainless steels |
| A 167 Type 309S | SAE | USA | Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip |
| A 213 TP309S | SAE | USA | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| A 240 Type 309S | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 249 TP309S | SAE | USA | Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes |
| A 276 309S | SAE | USA | Stainless Steel Bars and Shapes |
| A 312 TP309S | SAE | USA | Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes |
| A 314 309S | SAE | USA | Stainless Steel Billets and Bars for Forging |
| A 358 309S | SAE | USA | Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications |
| A 409 TP309S | SAE | USA | Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service |
| A 473 309S | SAE | USA | Stainless Steel Forgings |
| A 478 Type 309S | SAE | USA | Chromium-Nickel Stainless Steel Weaving and Knitting Wire |
| A 479 309S | SAE | USA | Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels |
| A 511 MT309S | SAE | USA | Seamless Stainless Steel Mechanical Tubing |
| A 554 MT 309S | SAE | USA | Welded Stainless Steel Mechanical Tubing |
| A 580 Type 309S | SAE | USA | Stainless Steel Wire |
| A 813 Grade TP 309S | SAE | USA | Single- or Double-Welded Austenitic Stainless Steel Pipe |
| A 814 Grade TP 309S | SAE | USA | Cold-Worked Welded Austenitic Stainless Steel Pipe |
| A 943 TP309S | SAE | USA | Spray-Formed Seamless Austenitic Stainless Steel Pipes |