304/304L Paipu Kuhili ʻole
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ʻO ASTM A312 ASTM A269 ASME SA 213 / ASTM A213 TP304, EN 10216-5 1.4301 ke kila kila he ʻano like ʻole o ka 18% chromium - 8% nickel austeniticstainless steel tube, ka mea maʻamau a hoʻohana pinepine ʻia i loko o ka ʻohana kila kila.E noʻonoʻo ʻia kēia ʻano kila kila no nā ʻano noi like ʻole ma ke kūpaʻa corrosion maikaʻi, maʻalahi ka hana ʻana, maikaʻi loa ke ʻano, a me ka ikaika kiʻekiʻe me ke kaumaha haʻahaʻa.
ʻO 304 Stainless Steel ke kila kila "18/8" maʻamau;ʻo ia ka mea maʻalahi a hoʻohana nui ʻia i ke kila kila, i loaʻa i kahi ākea o nā huahana, nā ʻano a me nā hoʻopau ʻana ma mua o nā mea ʻē aʻe.Loaʻa iā ia ka maikaʻi o ka hoʻokumu ʻana a me nā hiʻohiʻona wili.ʻO ke ʻano austenitic kaulike o ka Papa 304 e hiki ai ke huki hohonu ʻia me ka ʻole o ka annealing waena, ka mea i hoʻokiʻekiʻe i kēia papa ma ka hana ʻana i ka ʻāpana kila kuhili ʻole e like me ka paila, ka hollow-ware a me ka ipu.No kēia noi he mea maʻamau ka hoʻohana ʻana i nā ʻano like ʻole "304DDQ" (Deep Drawing Quality).
Mākaukau ʻia ka papa 304 i nā ʻāpana like ʻole no ka hoʻohana ʻana i ka ʻoihana ʻoihana, kūkulu hale, a me nā kahua kaʻa.Loaʻa i ka papa 304 kekahi ʻano kuʻihao koʻikoʻi.ʻAʻole koi ʻia ka annealing post-weld i ka wā e wili ai i nā ʻāpana lahilahi.
ʻAʻole koi ka papa 304L, ka mana kalapona haʻahaʻa o 304, i ka hoʻopili ʻana ma hope o ka weld a no laila ua hoʻohana nui ʻia i ka ʻāpana kaumaha (ma kahi o 6mm).ʻO ka papa 304H me kāna ʻike kalapona kiʻekiʻe e loaʻa ka noi ma ka wela kiʻekiʻe.Hāʻawi ka ʻōnaehana austenitic i kēia mau māka i ka paʻakikī maikaʻi loa, a hiki i ka cryogenic temperature.
Papa | Papa | Mea Kimia % | ||||||||||
C | Cr | Ni | Mn | P | S | Mo | Si | Cu | N | 'ē aʻe | ||
304 | 1.4301 | ≤0.08 | 18.00-19.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | - |
304L | 1.4307 | ≤0.030 | 18.00-20.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | - |
304H | 1.4948 | 0.04-0.10 | 18.00-20.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | - |