ASTM A178 yog tus qauv specification npog yam tsawg kawg nkaus phab ntsa thickness hluav taws xob kuj welded yeeb nkab. SA178 welded yeeb nkab yog ua los ntawm carbon steel thiab carbon manganese hlau thiab yog siv rau boiler raj, boiler stacks, superheater stacks, thiab kev ruaj ntseg xaus.
ASTM A178 steel yeeb nkab yog raug rau hluav taws xob tsis kam vuam txheej txheem. Tom qab vuam, tag nrho cov kav dej yuav tsum tau kho cua sov ntawm qhov kub sib npaug los yog siab tshaj 1650 degree F [900 degree] thiab tom qab ntawd cua txias los yog txias hauv qhov chaw tswj hauv lub cub tawg.
ASTM A178 ERW steel yeeb nkab muaj nyob rau hauv peb qib: Qib A - Tsawg Carbon Steel, Qib C - Nruab Nrab Carbon Steel, Qib D - Carbon Manganese Steel.
Cov ntaub ntawv khoom
Sab nraud txoj kab uas hla thiab phab ntsa Thickness kam rau ua ntawm ASTM A178 ERW Steel Yeeb Nkab:
|
Sab nraud Diameter Tol |
Phab ntsa thickness Tol |
||
|
OD <50 |
± 0.05 hli |
S <4mm |
±12.5% |
|
OD > 50 |
±1% |
4--20 hli |
+15/-12.5% |
|
S Ntau dua lossis sib npaug li 20mm |
±12.5% |
||
Chemical Composition ntawm ASTM A178 ERW Steel Yeeb Nkab:
| Element | ASTM A178 / ASME SA -178 | ||
| Qib A | Qib C | Qib D | |
| C | 0.06~0.18 | Tsawg dua lossis sib npaug rau 0.35 | Tsawg dua lossis sib npaug rau 0.27 |
| Mn | 0.27~0.63 | Tsawg dua lossis sib npaug rau 0.80 | 1.00~1.50 |
| P | Tsawg dua lossis sib npaug rau 0.035 | Tsawg dua lossis sib npaug rau 0.035 | Tsawg dua lossis sib npaug rau 0.030 |
| S | Tsawg dua lossis sib npaug rau 0.035 | Tsawg dua lossis sib npaug rau 0.035 | Tsawg dua lossis sib npaug rau 0.015 |
| Si | - | - | Ntau dua lossis sib npaug rau 0.10 |
Cov khoom tso tawm
ASTM A178 Round Welded Carbon Steel yeeb nkab
Vim li cas thiaj xaiv GNEE
GNEE muaj 12 cov kab ntau lawm nrog cov zis txhua xyoo ntawm 50, 000 tons. Nws tau txais daim ntawv pov thawj ISO9001 thoob ntiaj teb kev tswj hwm kev ua haujlwm zoo. Tam sim no warehouse cov lus nug yog ntau tshaj 1,500 tons thiab ntau tshaj 800 specifications.
Peb cov neeg ua haujlwm paub txog ib txwm muaj los tham txog koj cov kev xav tau thiab ua kom cov neeg siv khoom txaus siab tag nrho. Koj cov lus nug yeej ib txwm txais tos!sales@gneetube.com
GNEE CUSTOMER VAJTSWV
GNEE Factory Environment
GNEE packaging thiab Shipping
FAQ
Q: Koj puas muaj kev tswj xyuas zoo?
A: Yog lawm, peb muaj peb tus kheej lub chaw soj nstuam zoo. Peb tog kuaj kev pabcuam kuj muaj.
Q: Koj muab kev pabcuam dab tsi?
A: Kev pabcuam customized rau txhua tus neeg siv khoom, thov hu rau peb!
Q. Koj lub sijhawm ua haujlwm yog dab tsi?
A. Cov Tshuag tsis tu ncua feem ntau yog 10 hnub. Nyob ntawm cov khoom.
Cim npe nrov: Tuam Tshoj astm a178 erw steel tube manufacturers, lwm tus neeg, Hoobkas
