17-4PH/UNS S17400 Moetsi oa tšepe e sa hloekang
Lihlahisoa tse fumanehang
Tube e se nang seam, Plate, Ropa, Forgings, Fasteners, Pipe Fittings.
Maemo a Tlhahiso
| Sehlahisoa | ASTM |
| Li-bar, strips le profiles | A 564, A484 |
| Letlapa, Leqephe le Lekhapetla | A 693, A480 |
| Forgings | A 705, A484 |
Sebopeho sa Lik'hemik'hale
| % | Fe | Cr | Ni | P | S | Cu | Nb+Ta | Si | C |
| Min | tekatekano | 15.5 | 3.0 |
|
| 3.0 | 0.15 |
|
|
| Max | 175 | 5.0 | 0.04 | 0.03 | 5.0 | 0.45 | 1.00 | 0.07 |
Lintho Tsa 'Mele
| Botenya | 7.75 g/cm3 |
| Ho qhibiliha | 1404-1440 ℃ |
17-4PH Thepa ea Lintho
17-4PH ke pula ea chromium-nickel-copper e thatafatsang tšepe e sa hloekang ea martensitic.Sehlopha sena sa tšepe e sa hloekang se na le thepa e kang matla a phahameng, ho thatafala le ho hanyetsa kutu.Ka mor'a phekolo ea mocheso, thepa ea mochine oa sehlahisoa e phethahetse haholoanyane, 'me matla a khatello a ka fihla holimo ho 1100-1300MPa (160-190ksi).Kereiti ena e ke ke ea sebelisoa mochesong o fetang 300°C (572°F) kapa o tlase haholo.E na le khanyetso e ntle ea kutu ho sepakapaka le ho hlapolla acid kapa letsoai.Ho hanyetsa ha eona ha kutu ho tšoana le 304. Magnetic.
17-4PH Thepa ea Mechini
1.Tensile matla σb (MPa): botsofali ho 480 ℃, ≥1310;ho tsofala ho 550 ℃, ≥1060;botsofali ho 580 ℃, ≥1000;botsofali ho 620 ≥930
2.Matla a lihlahisoa tsa maemo σ0.2 (MPa): botsofali ho 480 ℃, ≥1180;botsofali ho 550 ℃, ≥1000;botsofali ka 580 ℃, ≥865;ho tsofala ho 620 ≥725
3.Elongation δ5 (%): botsofali ho 480℃, ≥10;botsofali ka 550 ℃, ≥12;botsofali ka 580 ℃, ≥13;botsofali ho 620 ℃, ≥16
4.Area shrinkage ψ (%): botsofali ho 480 ℃, ≥40;ho tsofala ho 550 ℃, ≥45;ho tsofala ho 580 ℃, ≥45;ho tsofala ho 620 ℃, ≥50
5.Bothata: tharollo e tiileng, ≤363HB le ≤38HRC;480℃ botsofali, ≥375HB le ≥40HRC;550℃ botsofali, ≥331HB le ≥35HRC;580℃ botsofali, ≥302HB le ≥31HRC;620℃ botsofali, ≥277HB le ≥28HRC
17-4PH Libaka tsa Kopo ea Lintho
1.Offshore platforms, helidecks, platforms tse ling
2. indasteri ea lijo
3.Indasteri ea pampiri le pampiri
4. Aerospace (mahare a turbine)
5.karolo ea mochini
6.Libarele tsa litšila tsa nyutlelie
