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| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Stainless Steels | 302 | Austenite | USA - YB , A 240/A 240M (2012) - Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications A 313/A 313M (2010) - Stainless Steel Spring Wire A 314 (2008) - Stainless Steel Billets and Bars for Forging A 368 (2009) - Stainless Steel Wire Strand 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 492 (2009) - Stainless Steel Rope Wire A 493 (2009) - Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging 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 666 (2010) - Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar A 959 (2011) - Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels SAE AMS-QQ-S-763B (1998) - Steel, Corrosion Resistant, Bars, Wire, Shapes, and Forgings Standard Withdrawn SAE AMS-S-7720A (1997) - Steel, Corrosion-Resistant (18-8) Bars, Wire and Forging Stock (Aircraft Quality) SAE J 405 (1998) - Chemical compositions of SAE wrought stainless steels SAE J 467 (1968) - Special Purpose Alloys |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.15 | ||
| Si | - | 1.00 | ||
| Mn | - | 2.00 | ||
| P | - | 0.045 | ||
| S | - | 0.03 | ||
| Cr | 18.0 | 19.0 | ||
| Ni | 8.00 | 10.00 |
A 240/A 240M (2012) Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General
Comment Austenitic (Chromium-Nickel) (Chromium-Manganese-Nickel)
| 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) |
|---|---|---|---|---|---|---|
| 954 (≥) | 652 (≥) | 31 | 34 | 11 | 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 |
|---|---|---|---|---|---|---|---|
| 659 (≥) | 669 (≥) | 22 | 22 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 244 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 918 | 945 | 554 |
| 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 |
|---|---|---|---|
| T72301 | AISI | USA | Carbon tool steel products which include hot or cold finished bar, plate, sheet, rod, wire, or forgings, which are normally fabricated into tools, dies, or fixtures. |
| W2-A | SAE | USA | Carbon tool steel products which include hot or cold finished bar, plate, sheet, rod, wire, or forgings, which are normally fabricated into tools, dies, or fixtures. |
| 301 | YB | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 167 Type 301 | SAE | USA | Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip |
| A 240 Type 301 | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 554 MT 301 | SAE | USA | Welded Stainless Steel Mechanical Tubing |
| A 666 Type 301 | SAE | USA | Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar |
| A 240 S30100 | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 666 S30100 | SAE | USA | Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar |
| S30100 | AISI | USA | Austenitic Chromium Nickel Stainless Steel |
| SA-240 S30100 | AMS | USA | Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| SA-666 S30100 | AMS | USA | Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar |
| A 314 302 | AMS | USA | Stainless Steel Billets and Bars for Forging |
| 302 | YB | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| S30200 | AISI | USA | Austenitic Chromium Nickel Stainless Steel |
| EV3 | UNS | USA | Steel for exhaust valves |
| S63016 | AISI | USA | Steel for exhaust valves |
| EV4 | UNS | USA | Steel for exhaust valves |
| S63017 | AISI | USA | Steel for exhaust valves |
| EV5 | UNS | USA | Steel for exhaust valves |
