Litšepe tse sa hloekang ke litšepe tse nang le alloy e phahameng tse nang le khanyetso e phahameng ea kutu ho feta litšepe tse ling ka lebaka la boteng ba chromium e ngata ho tloha ho 4 ho isa ho 30%.Litšepe tse sa hloekang li arotsoe ka martensitic, ferritic le austenitic ho latela sebopeho sa bona sa kristale.Ho phaella moo, ba theha sehlopha se seng se tsejoang e le litšepe tse thata tsa pula, e leng motsoako oa martensitic le austenitic steels.
347H tšepe e sa hloekang e kopantsoeng ka tubing
Lethathamo le latelang le tla fana ka lintlha tse ling mabapi le tšepe e sa hloekang ea grade 347H, e leng matla hanyane ho feta grade 304 steel.
347H tšepe e sa hloekang e kopantsoeng ka tubing
Tafole e latelang e bonts'a sebopeho sa lik'hemik'hale tsa tšepe e sa jeleng ea grade 347H.
347H tšepe e sa hloekang e kopantsoeng ka tubing
| Element | Litaba (%) |
|---|---|
| Iron, Fe | 62.83 - 73.64 |
| Chromium, Kr | 17-20 |
| Nickel, Na | 9-13 |
| Manganese, Mong | 2 |
| Silicon, Si | 1 |
| Niobium, Nb (Columbium, Cb) | 0.320 - 1 |
| Carbon, C | 0.04 - 0.10 |
| Phosphorous, P | 0.040 |
| Sebabole, S | 0.030 |
Lintho Tsa 'Mele
347H tšepe e sa hloekang e kopantsoeng ka tubing
Thepa ea 'mele ea grade 347H tšepe e sa hloekang e fanoe tafoleng e latelang.
| Thepa | Metric | Moemphera |
|---|---|---|
| Botenya | 7.7 - 8.03 g/cm3 | 0.278 – 0.290 lb/in³ |
347H tšepe e sa hloekang e kopantsoeng ka tubing
Thepa ea Mechini
Thepa ea mochini ea tšepe e sa hloekang ea sehlopha sa 347H e bonts'oa tafoleng e latelang.
| Thepa | Metric | Moemphera |
|---|---|---|
| Matla a tiileng, a ho qetela | 480 MPa | 69600 psi |
| Tensile matla, chai | 205 MPa | 29700 psi |
| Matla a ho phatloha (@750°C/1380°F, nako lihora tse 100,000) | 38 - 39 MPa, | 5510 - 5660 psi |
| Elastic modulus | 190 - 210 GPA | 27557 - 30458 ksi |
| Karolelano ea Poisson | 0.27 - 0.30 | 0.27 - 0.30 |
| Elongation nakong ya khefu | 29% | 29% |
| Thata, Brinell | 187 | 187 |
Mabitso a mang a lekanang le tšepe ea grade 347H a kenyelletsa tse latelang:
- ASTM A182
- ASTM A213
- ASTM A240
- ASTM A249
- ASTM A271
- ASTM A312
- ASTM A336
- ASTM A376
- ASTM A403
- ASTM A430
- ASTM A479
- ASTM A813
- ASTM A814
- SAE 30347H
Nako ea poso: Jul-01-2023