321 stainless hlau 4.0 * 0.35 hli coiled raj
321 yog titanium stabilized chromium-nickel austenitic stainless hlau nrog lub zog zoo thiab zoo heev corrosion kuj, raws li muab nyob rau hauv lub annealed mob nrog ib tug raug brinell hardness ntawm 175.Characterised los ntawm siab corrosion kuj nyob rau hauv dav atmospheric corrosive ib puag ncig nws exhibits zoo heev tsis kam mus rau feem ntau oxidizing. Cov neeg ua hauj lwm, cov khoom noj khoom haus, cov tshuaj sterilizing, dyestuffs, feem ntau cov organic chemicals ntxiv rau ntau yam inorganic chemicals, kuj kub roj av gases, chav combustion gases, nitric acid, thiab ib tug tsawg dua sulfuric acid.Nws qhia tau zoo oxidation tsis kam ntawm qhov kub thiab txias muaj kev tiv thaiv zoo rau intergranular corrosion thiab muaj weldability zoo heev.321 tsis tuaj yeem ua kom tawv tawv los ntawm kev kho cua sov, tab sis lub zog thiab tawv tuaj yeem nce ntxiv los ntawm kev ua haujlwm txias, nrog rau kev txo qis hauv ductility.
Siv dav rau cov ntawv thov uas qhov sib ntxiv ntawm titanium thiab nws cov nyhuv stabilizing raws li cov carbide tsim cov khoom tso cai rau nws yuav tsum tau welded thiab / los yog siv nyob rau hauv lub carbide nag lossis daus ntau 430oIb-870oC tsis muaj kev pheej hmoo ntawm intergranular corrosion.Cov no suav nrog kev ua zaub mov, khoom siv mis nyuj, tshuaj lom neeg, Petrochemical, Thauj thiab lwm yam lag luam.
Cov khoom tsis sib nqus nyob rau hauv cov mob annealed, tab sis tuaj yeem ua cov hlau nplaum me me tom qab ua haujlwm hnyav.
Annealing yuav tsum tau kho yog tias tsim nyog.
NB Optimum corrosion kuj yog tiav nyob rau hauv annealed mob.
| Australia | Ib 2837-1986-321 |
| Lub teb chaws Yelemees | W.Nr 1.4541 X6CrNiTi18 10 |
| Tebchaws Askiv | BS970 Part 3 1991 321S31 BS970-1955 EN58B/EN58C |
| Nyiv | JIS G4303 SuS 321 |
| Teb chaws USA | ASTM A276-98b 321 SAE 30321 AISI 321 UNS S32100 |
| Tshuaj muaj pes tsawg leeg | |||||||||||
| Min.% | Max % | ||||||||||
| Cov pa roj carbon | 0 | 0.08 ib | |||||||||
| Silicon | 0 | 1.00 Nws | |||||||||
| Manganese | 0 | 2.00 Nws | |||||||||
| Nickel | 9.00 Nws | 12.00 Nws | |||||||||
| Chromium | 17.00 Nws | 19.00 Nws | |||||||||
| Titanium | 5 x carbon | 0.80 ib | |||||||||
| Phosphorous | 0 | 0.045 ib | |||||||||
| Sulfur | 0 | 0.03 ib | |||||||||
| Mechanical Property Requirements - Annealed rau ASTM A276-98b 321 | |||||||||||
| Ua kom tiav | Kub tiav | Txias tiav | |||||||||
| Dia los yog Thickness mm | Tag nrho | Mus txog 12.7 | Tshaj 12.7 | ||||||||
| Temsile zog Mpa Min. | 515 | 620 | 515 | ||||||||
| Yield zog Mpa Min. | 205 | 310 | 205 | ||||||||
| Elongation hauv 50mm% Min. | 40 | 30 | 30 | ||||||||
| Cov cuab yeej cuab yeej cuab tam Ntawm Chav Kub - Annealed | |||||||||||
| Ua kom tiav | Txias Drawn | Lwm yam | |||||||||
| Tensile zog Mpa | 680 | 600 | |||||||||
| Yield zog Mpa | 500 | 280 | |||||||||
| Elongation hauv 50mm% | 40 | 55 | |||||||||
| Impact Charpy VJ | 180 | ||||||||||
| Hardness | HB | 200 | 165 | ||||||||
| Rc | 15 | ||||||||||
| Cov khoom kub siab | |||||||||||
| 321 qhia tau zoo oxidation tsis kam hauv kev pabcuam txuas mus txog 930oC, thiab nyob rau hauv qhov kev pab cuam sib nrug mus txog 870oC.Nws kuj tseem siv tau nyob rau hauv cov nag lossis daus ntawm carbide 430oIb-870oC tsis muaj kev pheej hmoo ntawm intergranular corrosion.Mechanical zog yog txo thaum kub nce.
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| Cov cuab yeej cuab yeej cuab tam - Annealed ntawm siab kub | |||||||||||
| KuboC | 20 | 430 | 550 | 650 | 760 ib | 870 ib | |||||
| Luv – Sijhawm Tensile Tests | Tensile zog Mpa | 580 | 425 | 365 | 310 | 205 | 140 | ||||
| Yield zog Mpa | 240 | 170 | 150 | 135 | 105 | 70 | |||||
| Elongation hauv 50mm% | 60 | 38 | 35 | 32 | 33 | 40 | |||||
| Creep Tests | Kev ntxhov siab rau 1% Creep hauv 10,000 Teev Mpa | 115 | 50 | 14 | |||||||
| Low Temperature Properties | |||||||||||
| 321 muaj qhov kub thiab txias zoo heev nrog kev nce tensile thiab yield zog nrog me ntsis poob ntawm toughness nyob rau hauv lub annealed mob. | |||||||||||
| Cov cuab yeej cuab yeej cuab tam - Annealed ntawm Zero thiab Sub-Zero Temperatures | |||||||||||
| KuboC | 0 | -70 | -130 | -180 | -240 | ||||||
| Tensile zog Mpa | 740 ib | 900 | 1135 ib | 1350 | 1600 | ||||||
| Yield zog Mpa | 300 | 340 | 370 | 400 | 450 | ||||||
| Elongation hauv 50mm% | 57 | 55 | 50 | 45 | 35 | ||||||
| Impact Charpy J | 190 | 190 | 186 | 186 | 150 | ||||||
