Welded steel yeeb nkab, tseem hu ua welded yeeb nkab, yog cov yeeb nkab steel ua los ntawm steel phaj los yog sawb tom qab crimping, feem ntau 6 meters welded steel yeeb nkab txheej txheem yog yooj yim, siab ntau lawm efficiency, ntau yam specifications, tsawg dua cov cuab yeej siv, tab sis lub zog dav dav. qis dua seamless steel yeeb nkab ncaj seam welded yeeb nkab ntau lawm txheej txheem yog yooj yim, siab ntau lawm efficiency, tsis tshua muaj nqi, ceev txoj kev loj hlob Lub zog ntawm kauv welded yeeb nkab yog feem ntau siab tshaj li cov ncaj welded yeeb nkab, uas yuav siv tau los tsim welded yeeb nkab nrog loj txoj kab uas hla. nrog rau txoj kab nqaim, thiab tseem tuaj yeem siv los tsim cov yeeb nkab welded nrog cov kab sib txawv nrog lub dav ntawm tib qhov dav, tab sis piv nrog cov yeeb nkab ncaj nraim ntawm tib qhov ntev, qhov ntev vuam nce los ntawm 30 ~ 100%, thiab cov khoom ceev yog qis dua. Agricultural irrigation hauv nroog kev tsim kho rau kev thauj cov kua: dej thiab cov kua dej rau kev thauj mus los: gas vapor liquefied petroleum gas rau cov qauv: piling yeeb nkab rau choj; Pier txoj kev tsim cov yeeb nkab, thiab lwm yam.
MAIN QUALITY INDEX TABLE NTAWM SPIRALLY WELDED STEEL PIPE
| MAIN QUALITY INDEX TABLE NTAWM SPIRALLY WELDED STEEL PIPE | |||
| API Spec 5L | GBT9711 1-1997 | SYT 5037 -2000 | |
| Scope ntawm kev thov ntawm | Nrog roj thiab roj yeeb nkab | Nrog roj thiab roj yeeb nkab | Gas, dej, roj, cua, chav cua sov Cov kav dej thiab lwm yam kua dej nrog cov hlau zoo tib yam |
| Hlau | A, 42-x70 | L175-1483 | Q195,Q215,Q235 |
| Tube Dia |
D<508±0.75% D508 Tsawg dua lossis sib npaug rau D Tsawg dua lossis sib npaug rau 9140.25%D+0.75%D D>914-3.20+635 |
D<508±0.75% D Ntau dua lossis sib npaug rau 508 ± 1.00%D |
D<508±0.75% D≥508+1.00%D |
| Sab nraum txoj kab uas hla ntawm cov yeeb nkab kawg |
Ds610, ± 0005D, max ± 1.6 hli 610 |
D Tsawg dua lossis sib npaug 610, ± 0005D.max ± 1.6mm 610< to ≤1422,±1.6mm |
D&Nws: 508±0.78%Dor ±2.5 ntawm qhov tsawg kawg nkaus D<:508±0. 50% D lossis ± 4.5 ntawm qhov tsawg kawg nkaus |
| Deviayion Wall Thickness >5. 0 Tos15 | ±0.1t | ±0.1t | ±125%t |
| Deviayion Wall Thickness >15 | 15 hli | 1.5 hli | 10%t |
| Elipticity | Steelpipe nyob rau hauv qhov kev ncua deb ntawm 101.5 Tej zaum yuav notbethe loj tshaj sab nraud txoj kab uas hla Loj dimeter tshaj lub nominal 19% D Yam tsawg kawg nkaus txoj kab uas hla yuav tsum tsis txhob smsler ces lub nominli dismeter ntawm 1% D | Stee! yeeb nkab nyob rau hauv qhov kev ncua deb ntawm 101.5 Tej zaum yuav tsis yog qhov loj tshaj plaws sab nraud dismeter Loj dismeter thsn lub nominal 1% D Yam tsawg kawg nkaus txoj kab uas hla yuav tsum tsis txhob me dua ces lub nomineli dismeter ntawm 1 %D | ± 1% D nyob rau hauv 100 ntau yam ntawm raj kawg |
| Satraigtness Ntawm Curvature | Cov kav dej ntev yuav tsum tsis pub tshaj 0.2% | Cov yeeb nkab ntev yuav tsum tsis pub tshaj 0.2% | Cov yeeb nkab ntev yuav tsum tsis pub tshaj 0.2% |
| Tube-Side Groove | Siope argument30*-35* Blunt edge1.59±0.79 | Siope argument30*-35* Blunt edge1.59±0.79 | Siope argument30*-35* Blunt edge1.59+0.79 |
| Oblique Cot | <1.59 | <1.59 |
D<813≤1.6 D Ntau dua lossis sib npaug rau 903 Tsawg dua lossis sib npaug rau 3.0 |
