ASTM A178 Qib D boiler raj yog tsuas yog siv rau superheater, reheater, phab ntsa dej, economizer thiab lwm yam khoom siv siab ntawm boilers. Vim nws txoj kev ua tau zoo heev, nws kuj tuaj yeem siv tau zoo nyob rau hauv ntau qhov chaw kub, siab thiab corrosive ib puag ncig.
Tus qauv loj thiab phab ntsa tuab ntawm ASME SA178 Gr D welded steel boiler raj yog 0 035 ntiv tes rau 0.320 ntiv tes [0.9 mm txog 9.1 mm] (tsawg kawg sab nraud) thiab 1/2 nti mus rau 5 nti [12.7 mm txog 127 mm] (tsawg kawg phab ntsa thickness). Kev cai steel raj kuj tuaj yeem ua raws li qhov xav tau tiag tiag ntawm cov neeg siv khoom.
Cov ntaub ntawv khoom
Tshuaj muaj pes tsawg leeg ntawm ASTM A178 Gr D Welded Steel Boiler Tubes
| Carbon Max 0.27% | Silicon Min: 0.10% |
| Manganese: 1.00% - 1.50% | Nickle: N / A |
| Phosphorus Max: 0.030% | Chromium: N / A |
| Sulfur Max: 0.015% | Molybdenum: N / A |
Mechanical Properties ntawm ASTM A178 Gr D Tubes
| Tensile zog Min: | ksi: 70 MPa: 485 |
| Yield Min: | ksi: 40 MPa: 275 |
| Rockwell B: | 77 HWB Max. |
Loj: (mm)
OD: 12.7mm txog 127mm
Phab ntsa thickness: 1.5mm txog 6.{3}}mm
Ntev: 6m -25m
Ends: Plain xaus los yog bevel xaus
Cov khoom tso tawm
SA 178 Qib D Carbon Steel Pipes
Vim li cas thiaj xaiv GNEE
GNEE yog tus kws tshaj lij cov yeeb nkab xa tawm nrog 12 cov kab ntau lawm thiab cov khoom tsim tawm txhua xyoo ntawm 50, 000 tons. Nws tau txais daim ntawv pov thawj ISO9001 thoob ntiaj teb kev tswj hwm kev ua haujlwm zoo.
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FAQ
Kuv puas tuaj yeem tau txais cov qauv ua ntej xaj?
Tau kawg. Feem ntau peb cov qauv yog dawb. Peb tuaj yeem tsim raws li koj cov qauv lossis cov duab kos duab. Peb tuaj yeem ua cov pwm thiab cov khoom siv.
Lub sijhawm xa khoom yog thaum twg?
Lub sij hawm xa khoom feem ntau yog nyob ib ncig ntawm 15 hnub.
Yog tias muaj Tshuag, peb tuaj yeem xa tuaj hauv 2 hnub.
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