ASTM A387 Qib 21 Hlau vsASTM A514 Hlau
ASTM UASA387specification yog tus qauv Specification rau Pressure Vessel Phaj, Alloy Steel, Chromium-Molybdenum npaj rau siv nyob rau hauv welded boilers thiab siab hlab ntsha tsim rau siab kub kev pab cuam. Gnee tuaj yeem muab A387 Qib 22 rau qhov kev xeem nruj rau Chav Kawm 1 thiab / lossis Chav Kawm 2.
ASTM A514 specification yog tus qauv Specification rau High-Yield-Strength, Quenched thiab Tempered Alloy Steel Phaj, Haum rau Vuam siv nyob rau hauv daim ntawv thov qhov twg Yield Strengths ntau tshaj los yog sib npaug zos rau 100 ksi yuav tsum tau rau daim hlau mus txog 2-1/2 "tuab, suav nrog.
Dab tsi yogA514qib sib npaug?
Rau cov haujlwm uas xav tau EN cov ntaub ntawv tus qauv, EN S700 lossis EN690 tuaj yeem hloov pauv rau A514, nyob ntawm qhov yuav tsum tau ua. Lwm Q&T steel phaj qib muaj cov khoom zoo sib xws rau A514 phaj thiab tej zaum yuav tsim nyog rau kev siv siab hnav thiab kev ntxhov siab.
Lub hardness ntawm A514 yog dab tsi?
| Lub cev muaj zog | Metric | Cov lus pom |
|---|---|---|
| Qhov ntom | 7.85 g / ct | |
| Mechanical Properties | Metric | Cov lus pom |
| Hardness, Brinell | 264 | |
| Hardness, Khob | 289 | Hloov los ntawm Brinell |
Dab tsi yogA514steel siv rau?
A514 steels yog siv rau qhov chaw weldable, machinable, siab zog steel yuav tsum tau kom txuag tau qhov hnyav los yog ua tau raws li qhov yuav tsum tau muaj zog. Nws feem ntau yog siv los ua cov qauv hlau hauv kev tsim vaj tsev, cranes, lossis lwm lub tshuab loj uas txhawb nqa siab.
