ʻAno 347 (UNS S34700) i loko o nā paipu wili
wehewehe
347 paipu wiliwili kila kila
ʻO ke ʻano 347 kahi niobium stabilized chromium nickel austenitic stainless steel me ka corrosion resistance like me 304/304L.Hoʻohana maʻamau ʻia kēia māka ma ka pae wela 800-1500˚F kahi i hoʻopaʻa ʻia e kūʻē i ka chromium carbide precipitation ma o ka hoʻohui ʻana i ka niobium, kahi i hopena i ka ua o nā carbide niobium.Loaʻa i ka Type 347 ke kūpaʻa ʻino intergranular maikaʻi loa ma hope o ka ʻike ʻana i kēia pae wela, a ke kū nei kēia papa i ka oxidation a hiki i 1500˚F a ʻoi aku ka kiʻekiʻe o nā mea kolo a me ke kaumaha ma mua o 304/304L.Loaʻa iā ia ka paʻakikī haʻahaʻa haʻahaʻa maikaʻi a ʻaʻole magnetic i ke kūlana annealed.
347 paipu wiliwili kila kila
Hoʻohui Kimia
Nā palena o ka Hui Kimia (wt%) e like me ka mea i kuhikuhi ʻia ma ASTM A240 a me ASME SA240*.
| ʻElemu | 347 |
| Kalapona | 0.08 |
| Chromium | 17.0-19.0 |
| Nikela | 9.0-13.0 |
| Manganese | 2.00 |
| Silika | 0.75 |
| Phosphorus | 0.045 |
| Sulfur | 0.030 |
| Niobium | 10 x C min / 1.00 ka nui |
Na Waiwai Mechanical347 paipu wiliwili kila kila
Nā koi waiwai mīkini no ka huahana annealed e like me ka mea i kuhikuhi ʻia ma ASTM A240 a me ASME SA240.
| Waiwai | 347 |
| Ka ikaika hua, min.(ksi) | 30 |
| Paʻa Paʻa, min.(ksi) | 75 |
| Elongation, min.(%) | 40 |
| Paʻakiki, max.(Rb) | 92 |
Na Waiwai Kino
Nā waiwai kino no ke kila kila kila ʻano 347
| Waiwai | 347 ʻIkepili |
| ʻO ka mānoanoa, lb/in3 | 0.288 |
| Modulus o Elasticity, psi | 28.0 x 106 |
| Coefficient o ka hoonui wela, 68-212˚F, /˚F | 9.3 x 10-6 |
| ʻO ka hoʻoili wela, Btu/ft hr ˚F | 9.2 |
| Wela Kūikawā, Btu/lb ˚F | 0.12 |
| Ke kū'ē uila, Microohm-in | 28.4 |
Nā kūlana
Nā kūlana maʻamau no Type 347 stainless steel
| 347 |
| ASTM A240 |
| ASME SA240 |
| AMS 5512 |
Ka manawa hoʻouna: Apr-22-2023