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SAE XM-3 Details
SAE XM-3 Standard Download
XM-3 Application:Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9Ni - 0.21Pb (303Pb) Free-Machining, Solution Heat Treated
| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Stainless Steels | XM-3 | Austenite | USA - SAE , |
Chemical composition(wt.%) of XM-3 grade:
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.15 | ||
| Si | - | 1.00 | ||
| Mn | - | 2.00 | ||
| P | - | 0.04 | ||
| S | 0.12 | 0.25 | ||
| Cr | 17.0 | 19.0 | ||
| Ni | 8.00 | 10.0 | ||
| Mo | - | 0.60 | ||
| Pb | 0.12 | 0.30 |
Mechanical properties of grade XM-3
| 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) |
|---|---|---|---|---|---|---|
| 824 (≥) | 848 (≥) | 32 | 44 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 113 |
Physical properties of grade XM-3
| 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 |
|---|---|---|---|---|---|---|---|
| 824 (≥) | 344 (≥) | 41 | 41 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 422 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 954 | 297 | 413 |
XM-3 - 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 |
|---|---|---|---|
| 303 Pb | UNS | USA | Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9Ni - 0.21Pb (303Pb) Free-Machining, Solution Heat Treated |
| 303Pb | ASTM | USA | Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9Ni - 0.21Pb (303Pb) Free-Machining, Solution Heat Treated |
| XM-3 | SAE | USA | Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9Ni - 0.21Pb (303Pb) Free-Machining, Solution Heat Treated |
| S30360 | AISI | USA | Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9Ni - 0.21Pb (303Pb) Free-Machining, Solution Heat Treated |
| XM-31 | UNS | USA | Chemical compositions of SAE wrought stainless steels |
| S21400 | AISI | USA | Chemical compositions of SAE wrought stainless steels |
| A 240 S44626 | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 268 S44626 | SAE | USA | Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service |
| S44626 | AISI | USA | Ferritic Chromium Molybdenum Titanium Stainless Steel |
| SA-240 S44626 | AMS | USA | Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| SA-268 S44626 | AMS | USA | Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service |
| A 581 S18200 | SAE | USA | Free-Machining Stainless Steel Wire and Wire Rods |
| A 582 S18200 | SAE | USA | Standard Specification for Free-Machining Stainless Steel Bars |
| S18200 | AISI | USA | Ferritic Chromium Molybdenum Free-Machining Stainless Steel (18-2FM) |
| A 276 S41040 | SAE | USA | Stainless Steel Bars and Shapes |
| S41040 | AISI | USA | Martensitic Chromium Stainless Steel with Columbium |
| A 240 S21400 | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 580 S21400 | SAE | USA | Stainless Steel Wire |
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