Muaj ob lub ntsiab ntawm cov hlau alloy.
High alloy hlau: -
High-alloy steels yog txhais los ntawm cov feem pua ntawm cov hlau alloying. Cov hlau alloy feem ntau yog stainless hlau, uas muaj tsawg kawg yog 12 feem pua chromium. Stainless hlau feem ntau muab faib ua peb hom: martensitic, ferritic, thiab austenitic. Martensitic steels muaj tsawg kawg nkaus ntawm chromium, muaj zog hardenability thiab feem ntau siv rau cutlery. Ferritic steels muaj nyob nruab nrab ntawm 12 thiab 27 feem pua chromium thiab feem ntau siv hauv tsheb thiab cov cuab yeej siv. Austenitic steels muaj qib siab nickel, carbon, manganese lossis nitrogen thiab feem ntau yog siv los khaws cov kua corrosive thiab mining, tshuaj lom neeg lossis khoom siv tshuaj.
qis alloy steels
Cov hlau tsis tshua muaj hlau muaj qhov feem pua ntawm cov hlau alloying tsawg, feem ntau 1 txog 5 feem pua. Cov hlau no muaj qhov sib txawv heev thiab siv nyob ntawm seb cov alloy xaiv. Alloys feem ntau xaiv los ntawm cov kab loj loj flange manufacturers rau ib qho khoom siv tshwj xeeb. Qhov ntau yam ntawm cov alloys ua tau ua rau cov hlau tsis tshua muaj txiaj ntsig zoo rau ntau yam haujlwm, xws li forging seamless dov rings thiab ua cov qhov (sockets).
Txawm hais tias muaj ntau yam sib txawv alloying ntsiab lus uas tuaj yeem siv los txhim kho cov khoom siv ntawm cov hlau, qee qhov kev sib txuas tau nquag siv thiab ntau hom hlau alloy yog nrov dua lwm tus.
High-strength low-alloy (HSLA) steel yog ib qho alloy uas muaj zog tiv thaiv corrosion atmospheric thiab siab zog. Muaj rau qib sib txawv ntawm HSLA steel, nrog rau cov ntsiab lus sib txawv siv. Feem ntau, vanadium, niobium, titanium, thiab tooj liab yog siv los ua kom muaj zog, thiab tooj liab, chromium, phosphorous, thiab silicon yog siv los ua kom muaj zog corrosion. Vim yog lub zog siab ntawm HSLA steels, feem ntau lawv tuaj yeem nyuaj rau tsim, qee zaum calcium lossis zirconium ntxiv los txhim kho formability. Chrome-molybdenum yog lwm hom hlau alloy. Cov khoom no yog ib qho alloy ntawm chrome thiab molybdenum, uas txhim kho hardenability, tsub kom lub zog, tsis kam mus rau kub kub, corrosion thiab oxidation kuj.
| ALLOY | SPECIFICATION | MAXIMUM TSEEM CEEB |
| carbon-steel | SA178, SA 192, | 850 degrees |
| SA210, SA106, | ||
| SA515, SA516 | ||
| Cov pa roj carbon -1/2 | SIB 209 | 900 degrees |
| Molybdenum | ||
| {{0}/4 Chromium- | SA213 T-11 | 1025 degrees |
| 1/2 Molybdenum hmoov | SA335 P -11 | |
| {{0}/4 Chromium- | SA213 T-22 | 1075 degrees |
| 1 Molybdenum | SA335 P -22 | |
| 18 Chromium- | SA213 TP304 (H), | 1500 degrees |
| 10 npib | 321 (H), 347 (H) . |
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