He aha ka mea e kaulana ai ʻo 304 vs 316?
ʻO ke kiʻekiʻe o ka chromium a me ka nickel i loaʻa i ke kila kila 304 a me 316 e hāʻawi iā lākou i kahi kūpaʻa ikaika i ka wela, ka ʻānai ʻana, a me ka pala. ʻAʻole wale lākou i ʻike ʻia no ko lākou kūpaʻa ʻana i ka pala, ua ʻike ʻia hoʻi lākou no ko lākou helehelena maʻemaʻe a me ka maʻemaʻe holoʻokoʻa.
ʻIke ʻia nā ʻano kila kila ʻelua i nā ʻoihana ākea. Ma ke ʻano he kila kila maʻamau, ua manaʻo ʻia ʻo 304 ʻo ia ke kila kila "18/8" maʻamau. Hoʻohana nui ʻia ke kila kila 304 no ka mea he paʻa a maʻalahi hoʻi e hana i nā ʻano like ʻole e like me ka pepa kila kila, ka papa kila kila, ka pā kila kila, a me ka paipu kila kila. ʻO ke kūpaʻa o ke kila 316 i nā kemika a me nā kaiapuni kai e lilo ia i koho kaulana i waena o nā mea hana.
Pehea lākou i hoʻokaʻawale ʻia ai?
Ua hoʻonohonoho ʻia nā papa ʻelima o ke kila kila ma muli o ko lākou ʻano crystalline (pehea e hoʻonohonoho ʻia ai ko lākou mau ʻātoma). Ma waho o nā papa ʻelima, aia ke kila kila 304 a me 316 i ka papa austenitic. ʻO ke ʻano o nā kila kila austenitic e hoʻolilo iā lākou i non-magnetic a pale iā lākou mai ka paʻakikī ʻia e ka mālama wela.
1. Nā Waiwai o ke Kila Kila 304
● Ka Hoʻohui Kemika o ke Kila Kila 304
| Kalapona | Manganese | Silika | ʻO ka phosphorus | Sulfur | Chromium | Nikala | Naikokene | |
| 304 | 0.08 | 2 | 0.75 | 0.045 | 0.03 | 18.0/20.0 | 8.0/10.6 | 0.1 |
● Nā Waiwai Kino o 304 SS
| Kiko Heheʻe | 1450℃ |
| Ka nui o ka paʻa | 8.00 g/cm^3 |
| Hoʻonui Wela | 17.2 x10^-6/K |
| Modulus o ka Elasticity | 193 GPa |
| Ka Hoʻokele Wela | 16.2 W/mK |
● Nā Waiwai Mekanika o ke Kila Kila 304
| Ikaika Hoʻopaʻa | 500-700 Mpa |
| Elongation A50 mm | 45 Min % |
| Paʻakikī (Brinell) | 215 Max HB |
● Nā noi o ke kila kila 304
Hoʻohana pinepine ka ʻoihana lapaʻau i ka 304 SS no ka mea e kū i nā kemika hoʻomaʻemaʻe ikaika me ka ʻole o ka pala. Ma ke ʻano he hoʻokahi o nā mea hoʻohuihui liʻiliʻi e hoʻokō ana i nā lula sanitary o ka Food and Drug Administration no ka hoʻomākaukau ʻana i ka meaʻai, hoʻohana pinepine ka ʻoihana meaʻai i ka 304 SS.
Hoʻomākaukau meaʻai: Nā mea palai, nā papa hoʻomākaukau meaʻai.
Nā lako kīhini: nā ipu kuke, nā ipu kālā.
Nā ʻano hana hale: nā ʻaoʻao, nā elevators, nā lumi ʻauʻau.
Lapaʻau: nā pā, nā mea hana ʻoki kino.
2. Nā Waiwai o ke Kila Kila 316
Loaʻa i ka 316 nā ʻano kemika a me nā ʻano mechanical like me ke kila kila 304. I ka maka ʻōlohelohe, ua like ke ʻano o nā metala ʻelua. Eia nō naʻe, ʻo ka hoʻohui kemika o 316, i hana ʻia me 16% chromium, 10% nickel, a me 2% molybdenum, ʻo ia ka ʻokoʻa nui ma waena o ke kila kila 304 a me 316.
● Nā Waiwai Kino o 316 SS
| Kiko heheʻe | 1400℃ |
| Ka nui o ka paʻa | 8.00 g/cm^3 |
| Modulus o ka Elasticity | 193 GPa |
| Hoʻonui Wela | 15.9 x 10^-6 |
| Ka Hoʻokele Wela | 16.3 W/mK |
● Nā Waiwai Mekanika o 316 SS
| Ikaika Hoʻopaʻa | 400-620 Mpa |
| Elongation A50 mm | 45% minuke |
| Paʻakikī (Brinell) | 149 HB kiʻekiʻe loa |
Nā noi o 316 Stainless Steel
ʻO ka hoʻohui ʻana o Molybdenum i ka 316 e ʻoi aku ka pale ʻana i ka pala ma mua o nā mea like. Ma muli o kona kūpaʻa kiʻekiʻe i ka pala, ʻo 316 kekahi o nā metala nui no nā wahi kai. Hoʻohana ʻia ke kila kila 316 i nā haukapila ma muli o kona kūpaʻa a me ka maʻemaʻe.
Ka lawelawe ʻana i ka wai: nā paila, nā mea hoʻomehana wai
Nā ʻāpana moana- nā alahao waʻa, kaula uea, nā alapiʻi waʻa
Nā Lako Lapaʻau
Nā lako hana kemika
304 vs 316 Kila Kila: Ke Kū'ē Wela
He mea nui ka pale ʻana i ka wela e noʻonoʻo ai i ka hoʻohālikelike ʻana i nā ʻano kila kila like ʻole. ʻO ka pae hoʻoheheʻe o 304 ma kahi o 50 a 100 degere Fahrenheit ʻoi aku ka kiʻekiʻe ma mua o 316. ʻOiai ʻoi aku ka kiʻekiʻe o ka pae hoʻoheheʻe o 304 ma mua o 316, loaʻa iā lāua ʻelua ke kūpaʻa maikaʻi i ka oxidization i ka lawelawe intermittent a hiki i 870°C (1500℉) a i ka lawelawe mau ma 925°C (1697℉).
304 SS: Hoʻokele maikaʻi i ka wela kiʻekiʻe, akā ʻo ka hoʻohana mau ʻana ma 425-860 °C (797-1580 °F) hiki ke hana i ka pala.
316 SS: Hana maikaʻi loa i nā mahana ma luna o 843 ℃ (1550 ℉) a ma lalo o 454 ℃ (850°F)
ʻOkoʻa ke kumukūʻai o ke kila kila 304 a me 316
He aha ka mea e ʻoi aku ai ke kumukūʻai o 316 ma mua o ke kila kila 304?
ʻO ka hoʻonui ʻia o ka nui o ka nickel a me ka hoʻohui ʻana o ka molybdenum i ka 316 e ʻoi aku ke kumukūʻai ma mua o 304. Ma ka awelika, ʻo ke kumukūʻai o ke kila kila 316 he 40% kiʻekiʻe ma mua o ke kumukūʻai o 304 SS.
316 vs 304 Kila Kila: ʻO wai ka mea ʻoi aku ka maikaʻi?
I ka hoʻohālikelike ʻana i ke kila kila 304 me 316, loaʻa iā lāua nā pono a me nā pōʻino e noʻonoʻo ai i ka hoʻoholo ʻana i ka mea e hoʻohana ai no nā noi like ʻole. No ka laʻana, ʻoi aku ka paʻa o ke kila kila 316 ma mua o 304 i ka paʻakai a me nā mea ʻino ʻē aʻe. No laila, inā ʻoe e hana ana i kahi huahana e kū pinepine i ka hōʻike ʻana i nā kemika a i ʻole ke kaiapuni kai, ʻoi aku ka maikaʻi o ka 316.
Ma ka ʻaoʻao ʻē aʻe, inā ʻoe e hana ana i kahi huahana ʻaʻole pono i ke kūpaʻa ikaika i ka pala, he koho kūpono a hoʻokele waiwai hoʻi ka 304. No nā noi he nui, hiki ke hoʻololi ʻia ʻo 304 a me 316.
He loea a he mea hoʻolako alakaʻi ʻo Jindalai Steel Group i ke kila a me ke kila kila. E hoʻouna mai i kāu nīnau a e hauʻoli mākou e kūkākūkā me ʻoe ma ke ʻano loea.
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Ka manawa hoʻouna: Dec-19-2022
