Ke koho ʻana i ke kila kila no ka koi ʻana i nā noi ʻoihana, 316L a me 904L ʻelua mau koho kaulana. Hāʻawi nā mea ʻelua i ke kūpaʻa corrosion maikaʻi a me ka lōʻihi, akā ʻokoʻa lākou i ka haku mele ʻana, ka hana mechanical, a me ke kumukūʻai. Ma kēia ʻatikala, hoʻohālikelike mākou i ka 316L stainless steel a me 904L stainless steel ma waena o nā koina koʻikoʻi e kōkua iā ʻoe e koho i ka huila kūpono no kāu papahana.
He aha ka 316L Stainless Steel?
ʻO 316L ke kila kila he haʻahaʻa haʻahaʻa o 316, he ʻāpana o ka ʻohana kila kila austenitic. Aia i loko:
16–18% Chromium
10–14% Nikela
2–3% Molybdenum
Kaona Haʻahaʻa (<0.03%)
Nā mea nui o 316L:
ʻOi aku ka maikaʻi o ka pale ʻana i ka corrosion i loko o ke kai a me ka ʻawaʻawa haʻahaʻa.
Maikaʻi weldability a me ka formability.
Kūleʻa i ka lua a me ka crevice corrosion.
Nā noi maʻamau:
Meaʻai a me nā lako lāʻau
Nā ʻāpana moana
ʻO nā pahu kemika a me nā paipu
Nā mea hoʻololi wela
He aha ka 904L Stainless Steel?
ʻO 904L ke kila kila he kila kila austenitic super me ka ʻikepili kiʻekiʻe, i hoʻomohala ʻia no ka pale ʻana i ka corrosion. Loaʻa iā ia:
19–23% Chromium
23–28% Nikela
4–5% Molybdenum
1–2% keleawe
Nā mea nui o 904L:
ʻO ke kūpaʻa kiʻekiʻe i nā waikawa ikaika (sulfuric, phosphoric).
Kūleʻa kiʻekiʻe i ka lua a me ke koʻikoʻi i ka haki ʻana.
Mālama i ka ikaika a me ka paʻakikī i nā wela kiʻekiʻe.
Non-magnetic ma nā kūlana a pau.
Nā noi maʻamau:
Mea kanu ʻakika
Nā ʻōnaehana kai waho a me ka moana
Nā lāʻau lapaʻau a me nā mea hoʻoheheʻe kemika
ʻO nā mea hoʻololi wela e lawelawe ana i nā pāpaʻi koʻikoʻi
316L vs. 904L: Nā ʻokoʻa koʻikoʻi ma kahi nānā
| Waiwai | 316L kila kila | 904L kila kila |
|---|---|---|
| Maikaʻi Nickel | 10–14% | 23–28% |
| ʻIke Molybdenum | 2–3% | 4–5% |
| Pale ʻino | Maikaʻi (nui a me kai) | Kiʻekiʻe (ʻakika, chloride, wai kai) |
| Ka ikaika | Kaumaha | ʻOi aku ka ikaika mechanical |
| Kumukuai | ʻOi aku ka waiwai | ʻOi aku ka pipiʻi |
| Hana Mākēneki | Non-magnetic | Non-magnetic |
| Weldability | Maikaʻi loa | Pono e mālama i ka wā wili |
ʻO wai kāu e koho ai?
E koho i 316Linā kāu noi ma kahikaiapili corrosive moderately, e like mehana meaʻai, mea lapaʻau, a i ʻolenā hale kaiʻike ʻia i ka wai kai.
E koho i ka 904Lno ka meaʻano ʻino ʻino, ʻoi akunā pāpaʻi ʻakika, nā kaiapuni piha i ka chloride, a i ʻolenā mea hana kemika kiʻekiʻe a me waho.
ʻOiai hāʻawi ʻo 316L i kahi kaulike maikaʻi o ka hana a me ke kumukūʻai,ʻOi aku ka maikaʻi o 904Li nā kaiapuni koʻikoʻi - e hoʻolilo iā ia i koho premium kahi koʻikoʻi ka hilinaʻi lōʻihi.
Nā Manaʻo Hope
He mea nui ka hoʻomaopopo ʻana i nā ʻokoʻa ma waena o 316L a me 904L kila kila no ka hana ʻana i nā koho mea ʻike. Ma SAKY STEEL, hāʻawi mākou i nā māka ʻelua ma nā ʻano like ʻole me nā pā, nā ʻōwili, nā ʻauamo, nā paipu, a me nā flanges - e like me nā kūlana honua e like me ASTM A240, A312, A182, a me nā mea hou aku.
Ka manawa hoʻouna: Jun-18-2025