ʻO ka pā pālahalaha kila kila 440Che huahana kila kila kiʻekiʻe i ʻike ʻia no kona hui pū ʻana o ke kūpaʻa ʻana i ka ʻaʻahu a me ke kūpaʻa ʻana i ka pala. No ka ʻohana kila kila martensitic ia a hoʻohana nui ʻia i nā ʻoihana like ʻole no kāna hana kiʻekiʻe.
Kūlana o ke kila kila kila 440C a me nā pae kila like
| ʻĀina | ʻAmelika Hui Pū ʻIa | BS & DIN | Iapana |
| Kūlana Maʻamau | ASTM A276 | EN 10088 | JIS G4303 |
| Nā Papa | S44004/440C | X105CrMo17/1.4125 | SUS440C |
ʻO ka hoʻohuihui kemika kila ASTM A276 440C a me nā mea like
| Kūlana Maʻamau | Papa | C | Mn | P | S | Si | Cr | Mo |
| ASTM A276 | S44004/440C | 0.95-1.20 | ≦1.00 | ≦0.04 | ≦0.03 | ≦1.00 | 16.0-18.0 | ≦0.75 |
| EN10088 | X105CrMo17/1.4125 | 0.95-1.20 | ≦1.00 | ≦0.04 | ≦0.03 | ≦1.00 | 16.0-18.0 | 0.40-0.80 |
| JIS G4303 | SUS 440C | 0.95-1.20 | ≦1.00 | ≦0.04 | ≦0.03 | ≦1.00 | 16.0-18.0 | ≦0.75 |
440C kila kilaMekanikaNā Waiwai
| Mahana Hoʻomehana (°C) | Ikaika Hoʻopaʻa (MPa) | Ikaika Hua 0.2% Hōʻoia (MPa) | Elongation (% i loko o 50mm) | Paʻakikī Rockwell (HRC) | Hoʻopilikia Charpy V (J) |
| Hoʻoheheʻe ʻia* | 758 | 448 | 14 | 269HB kiʻekiʻe# | - |
| 204 | 2030 | 1900 | 4 | 59 | 9 |
| 260 | 1960 | 1830 | 4 | 57 | 9 |
| 306 | 1860 | 1740 | 4 | 56 | 9 |
| 371 | 1790 | 1660 | 4 | 56 | 9 |
Eia kekahi mau kumu koʻikoʻi e hoʻolauna i ka pā pālahalaha kila kila 440C:
1. Hoʻohuihui: ʻO ka pā pālahalaha kila kila 440C i haku nui ʻia me ka chromium (16-18%), kalapona (0.95-1.20%), a me nā mea liʻiliʻi ʻē aʻe e like me ka manganese, silicon, a me ka molybdenum.
2. Ke Kū'ē ʻana i ka ʻAʻahu: Ua kaulana ka pā pālahalaha kila kila 440C no kona kūpaʻa ʻana i ka ʻaʻahu, e kūpono ai no nā noi e pili ana i nā mea abrasive, nā mea ʻoki, nā bearings, a me nā ʻāpana kū'ē i ka ʻaʻahu.
3. Ke Kū'ē ʻana i ka ʻAi ʻana: ʻOiai he kila kila kalapona kiʻekiʻe, hōʻike ʻo 440C i ke kūpaʻa maikaʻi i ka ʻai ʻana.
4. Paʻakikī a me ka ikaika: He paʻakikī maikaʻi loa ka pā palahalaha kila kila 440C a me ka ikaika kiʻekiʻe, e hāʻawi ana i ka lōʻihi a me ka lōʻihi o ke ola i nā noi koi.
Ka manawa hoʻouna: Iulai-05-2023