Hoʻolauna
ʻO nā kila kila he mau kila kila kiʻekiʻe i loaʻa ke kūpaʻa kiʻekiʻe o ka corrosion ma mua o nā kila ʻē aʻe ma muli o ka nui o ka chromium ma waena o 4 a 30%.Hoʻokaʻawale ʻia nā kila kila i martensitic, ferritic a me austenitic ma muli o ko lākou ʻano crystalline.I ka hoʻohui, hana lākou i kahi hui ʻē aʻe i kapa ʻia ʻo nā kila paʻakikī paʻakikī, ʻo ia ka hui pū ʻana o nā kila martensitic a me austenitic.
E hāʻawi ka ʻikepili ma lalo nei i nā kikoʻī hou aʻe e pili ana i ke kila kila kila 347H, ʻoi aku ka paʻakikī ma mua o ke kila 304.
Hoʻohui Kimia
Hōʻike ka papa ma lalo nei i ka haku mele mele 347H kila kila.
| ʻElemu | Maʻiʻo (%) |
|---|---|
| Hao, Fe | 62.83 – 73.64 |
| Chromium, Cr | 17 – 20 |
| Nikela, Ni | 9 – 13 |
| Manganese, Mn | 2 |
| Silika, Si | 1 |
| Niobium, Nb (Columbium, Cb) | 0.320 – 1 |
| Kalapona, C | 0.04 – 0.10 |
| Phosphorous, P | 0.040 |
| Sulfur, S | 0.030 |
Na Waiwai Kino
Hāʻawi ʻia nā waiwai kino o ka pae 347H stainless steel ma ka papa aʻe.
| Waiwai | Metric | Imperial |
|---|---|---|
| ʻO ka mānoanoa | 7.7 – 8.03 g/cm3 | 0.278 – 0.290 paona/in³ |
Na Waiwai Mechanical
Hōʻike ʻia nā waiwai mechanical o ka pae 347H stainless steel ma ka papa ma lalo.
| Waiwai | Metric | Imperial |
|---|---|---|
| Ka ikaika tensile, hope loa | 480 MPa | 69600 psi |
| Ka ikaika tensile, yield | 205 MPa | 29700 psi |
| Ka ikaika ʻāhaehae (@750°C/1380°F, manawa 100,000 hola) | 38 – 39 MPa, | 5510 – 5660 psi |
| Modulus elastic | 190 – 210 GPa | 27557 – 30458 ksi |
| Lakiō o Poisson | 0.27 – 0.30 | 0.27 – 0.30 |
| ʻO ka hoʻolōʻihi i ka wā hoʻomaha | 29% | 29% |
| Oolea, Brinell | 187 | 187 |
Ka manawa hoʻouna: Mar-30-2023