Ko nga tira kowiri he rino koranu teitei he nui te parenga o te waikura i era atu tira na te nui o te chromium i roto i te awhe o te 4 ki te 30%.Ka whakarōpūhia nga tira kowiri ki te martensitic, ferritic me austenitic i runga i to raatau hanganga tioata.Hei taapiri atu, ka hangaia he roopu ano e kiia nei ko nga tira whakapakeke-rere, he huinga o nga tira martensitic me austenitic.
347H ngongo kowiri tira kowiri
Ko te papanga raraunga e whai ake nei ka nui ake nga korero mo te karaehe 347H kowiri tira, he uaua ake i te karaehe 304 maitai.
347H ngongo kowiri tira kowiri
Ko te ripanga e whai ake nei e whakaatu ana i te hanganga matū o te kōeke 347H kowiri tira.
347H ngongo kowiri tira kowiri
| Huānga | Ihirangi (%) |
|---|---|
| Rino, Fe | 62.83 – 73.64 |
| Chromium, Cr | 17 – 20 |
| Nickel, Ni | 9 – 13 |
| Manganese, Mn | 2 |
| Silicon, Si | 1 |
| Niobium, Nb (Columbium, Cb) | 0.320 – 1 |
| waro, C | 0.04 – 0.10 |
| Phosphorous, P | 0.040 |
| Sulfur, S | 0.030 |
Āhuatanga ā-tinana
347H ngongo kowiri tira kowiri
Ko nga ahuatanga tinana o te karaehe 347H he kowiri tira kei te ripanga e whai ake nei.
| Āhuatanga | Inenga | Imperial |
|---|---|---|
| Kiato | 7.7 – 8.03 g/cm3 | 0.278 – 0.290 lb/in³ |
347H ngongo kowiri tira kowiri
Nga Taonga Miihini
Ko nga ahuatanga miihini o te karaehe 347H kowiri tira e whakaatuhia ana i te ripanga e whai ake nei.
| Āhuatanga | Inenga | Imperial |
|---|---|---|
| Te kaha tensile, te mutunga | 480 MPa | 69600 psi |
| Te kaha tensile, tuku | 205 MPa | 29700 psi |
| Te kaha pakaru (@750°C/1380°F, te wa 100,000 haora) | 38 – 39 MPa, | 5510 – 5660 psi |
| Kōwae rapa | 190 – 210 GPa | 27557 – 30458 ksi |
| Te ōwehenga o Poisson | 0.27 – 0.30 | 0.27 – 0.30 |
| Te whakaroa i te wehenga | 29% | 29% |
| Te pakeke, Brinell | 187 | 187 |
Ko etahi atu tohu e rite ana ki te karaehe 347H kowiri tira ko enei e whai ake nei:
- 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
Wā tuku: Hūrae-01-2023