ASTM A179 Boiler Steel Tube

ASTM A179 / ASME SA179 tus qauv siv rau Seamless Bye6}} luch} Tus qauv roj carbon monoxes rau kev hloov cua sov thiab cov hnab looj. Cov hlab no feature nyias phab ntsa tuab thiab yog tshwj xeeb yog tsim nyog rau tubular tshav kub kev lag luam, cov tshuab looj, thiab cov khoom siv cua sov.

Cov khoom lag luam

ASTM A179Yog tus qauv tsim los ntawmAmerican Society rau Kev Ntsuam Xyuas thiab Khoom (ASTM)Cov. Nws cov npe tag nrho yog"Tus Qauv Tshwj Xeeb rau Seamless Txias Kev Seamless Txias {} {}}} cov roj carbon monoxe} pondenser leeg."Hauv qab no yog ib qho kev qhia txog nws cov ntsiab lus tseem ceeb:

‌1. Tau:‌

Siv rauSeamless Txias - dromn tsawg -} carbon cov leegNrogTsawg kawg cov phab ntsa thickness, Tsim rauKev Hloov Tshav Kub Kub, Cov Tas Rau, thiab Cov Khoom Siv Cua Sov‌.

‌Od ntau: 1/8 "rau 3" (3.2-76.2 mm), txawm tias me ods thiab phab ntsa thickness kuj tseem yuav siv tau.

‌Yam muaj: Kev ua tau zoo dua li yuav tsum muajtsis sivRau tub nrogOD <1/8 "(3.2 hli)LossisPhab Ntsa Thickness <0.015 "(0.4 hli)‌.

‌2. Tshuaj lom neeg:‌

‌Carbon (c)‌: 0.06–0.18%

‌Manganese (mn)‌: 0.27–0.63%

‌Phosphorus (p): Tsawg dua los yog sib npaug rau 0.035%

‌Sulphur (s): Tsawg dua los yog sib npaug rau 0.035%

‌Alloy SteelsRaug zam vim yog cov kev cai tshwj xeeb ntxiv.

‌3. Kev tsim qauv:‌

‌Seamless Txias - KosnTubes yuav tsum yauv musKev Kho Cua SovNtawmNtau dua los yog sib npaug rau 1200℃f (650 degree)Tom qab kawg txias - kev kos duab.

‌4. Cov Mob Deg:‌

‌Tsis muaj scalingTso cai; ‌Cov Oxide Oxide nyobYog tau.

‌5. Cov Cuab Yeej Siv Cov Tshuab & Cov Xeem Yuav Tsum:‌

‌Kev nyuaj: Tsawg dua lossis sib npaug rau 72 hrb (rockwell b nplai).

‌Kev Ntsuas Cov Qauv‌:

‌Plhaw kev kuaj: 2 ntsuas cov qauv rau ib pob (1 piv txwv rau ib lub raj).

‌Flaring TestLossishemming xeem(Raws li lwm txoj hauv kev tshwj xeeb).

‌Kev ntsuas hardness‌.

‌Hydrostatic Kev Ntsuam Xyuas‌: ‌100% kev sim ib lub raj, LossisNDE (tsis - kev kuaj mob)Yog tias yuav tsum tau los ntawm tus neeg yuav khoom.