Tam sim no peb muaj cov kws tshaj lij, pab pawg ua haujlwm los muab cov kev pabcuam zoo rau peb cov neeg siv khoom.Peb feem ntau ua raws li cov lus qhia ntawm cov neeg siv khoom, cov ntsiab lus tshwj xeeb rau SSAW/Sawl API 5L Spiral Welded Carbon Steel Pipe Natural Gas and Oil Pipeline, Tsis tas li ntawd, peb yuav qhia cov neeg siv khoom kom zoo txog cov txheej txheem thov los txais yuav peb cov kev daws teeb meem. thiab txoj kev xaiv cov khoom tsim nyog.
Tam sim no peb muaj cov kws tshaj lij, pab pawg ua haujlwm los muab cov kev pabcuam zoo rau peb cov neeg siv khoom.Peb feem ntau ua raws li tenet ntawm cov neeg siv khoom-oriented, cov ntsiab lus- tsom rauTuam Tshoj LSAW / SSAW Steel Yeeb Nkab thiab Welded Yeeb Nkab, Peb lub hom phiaj yog kom xa cov nqi zoo tshaj plaws rau peb cov neeg siv khoom thiab lawv cov neeg siv khoom.Qhov kev cog lus no permeates txhua yam peb ua, tsav peb txuas ntxiv txhim kho thiab txhim kho peb cov kev daws teeb meem thiab cov txheej txheem kom ua tiav koj cov kev xav tau.
Cov yeeb nkab xaj raws li qhov kev qhia tshwj xeeb no yog siv rau kev pabcuam siab ntawm atmospheric thiab qis dua kub.Mainly siv rau cov roj thiab cov nkev kis tau tus mob.
ASTM A671 LSAW (JCOE) Carbon Steel Yeeb Nkab yuav tsum tau muab ob npaug rau-welded, puv-ntev welds ua raws li cov txheej txheem thiab los ntawm cov neeg siv vuam lossis cov neeg ua haujlwm vuam tsim nyog raws li ASME Boiler thiab pressure Vessel Code, Tshooj IX.
Tag nrho cov chav kawm uas tsis yog 10, 11, 12 thiab 13 yuav tsum tau kho cua sov hauv qhov cub tswj kom ± 15 ℃ thiab nruab nrog lub ntsuas dej ntsuas kom cov ntaub ntawv cua sov muaj.
Chaw tsim tshuaj paus: LSAW (JCOE) steel kav
Loj: OD: 406 ~ 1500mm WT: 6 ~ 40mm
Qib: CB60, CB65, CC60, CC65, thiab lwm yam.
Ntev: 12M lossis ntev raws li qhov xav tau.
Xaus: Plain End, Beveled End, Grooved;
| Kev xav tau tshuajASTM A672 B60 / B70 / C60 / C65 / C70LSAWCarbon Steel Yeeb Nkab | |||||||||||||
| Yeeb | Qib | Kev sib xyaw,% | |||||||||||
| C max | Mn | P max | S max | Si | Lwm tus | ||||||||
| <=1 in (25 hli) | > 1 ~ 2 hauv (25 ~ 50 hli) | > 2 ~ 4in (50-100mm) | > 4 ~ 8 hauv (100 ~ 200 hli) | > 8 hauv (200 hli) | <= 1/2 po (12.5 hli) | > 1/2 nyob rau hauv (12.5 hli) | |||||||
| CB | 60 | 0.24 ib | 0.21 ib | 0.29 ib | 0.31 Nws | 0.31 Nws | 0.98 max | 0.035 ib | 0.035 ib | 0.13–0.45 dr hab | … | ||
| 65 | 0.28 ib | 0.31 Nws | 0.33 ib | 0.33 ib | 0.33 ib | 0.98 max | 0.035 ib | 0.035 ib | 0.13–0.45 dr hab | … | |||
| 70 | 0.31 Nws | 0.33 ib | 0.35 Nws | 0.35 Nws | 0.35 Nws | 1.30 max | 0.035 ib | 0.035 ib | 0.13–0.45 dr hab | … | |||
| CC | 60 | 0.21 ib | 0.23 | 0.25 | 0.27 ib | 0.27 ib | 0.55–0.98 Nws | 0.79–1.30 Nws | 0.035 ib | 0.035 ib | 0.13–0.45 dr hab | … | |
| 65 | 0.24 ib | 0.26 | 0.28 ib | 0.29 ib | 0.29 ib | 0.79–1.30 Nws | 0.79–1.30 Nws | 0.035 ib | 0.035 ib | 0.13–0.45 dr hab | … | ||
| 70 | 0.27 ib | 0.28 ib | 0.30 Nws | 0.31 Nws | 0.31 Nws | 0.79–1.30 Nws | 0.79–1.30 Nws | 0.035 ib | 0.035 ib | 0.13–0.45 dr hab | … | ||
| Mechanical Properties | |||||
| Qib | |||||
|
| SIB CB65 | SIB 70 | CC 60 | CC65 ua | CC70 ua |
| Tensile zog, min: | |||||
| ksi ua | 65 | 70 | 60 | 65 | 70 |
| Mpa | 450 | 485 ib | 415 | 450 | 485 ib |
| Yield zog, min: | |||||
| ksi ua | 35 | 38 | 32 | 35 | 38 |
| MPa | 240 | 260 | 220 | 240 | 260 |
1. Sab nraud txoj kab uas hla-raws li qhov ntsuas qhov ntsuas ± 0.5% ntawm qhov ntsuas sab nraud.
2. Out-of-Roundness-Sib txawv ntawm qhov loj thiab me sab nraud diameters.
3. Alignment-Siv ib tug 10 ft (3m) straightedge muab tso kom ob hnub nyob rau hauv kev sib cuag nrog cov yeeb nkab, 1/8 nyob rau hauv. (3mm).
4. Thickness-Qhov tsawg kawg nkaus phab ntsa thickness ntawm txhua qhov chaw hauv cov yeeb nkab yuav tsum tsis txhob ntau tshaj 0.01 nyob rau hauv. (0.3mm) raws li teev nominal thickness.
5. Lengths nrog unmachined kawg yuav tsum nyob rau hauv -0, + 1/2 nyob rau hauv. (-0, + 13mm) ntawm qhov teev.Ntev nrog machined kawg yuav tsum yog raws li kev pom zoo ntawm cov chaw tsim khoom thiab cov neeg yuav khoom.
Tension Test-Transverse tensile zog ntawm cov welded sib koom yuav tsum tau raws li qhov tsawg kawg nkaus yuav tsum tau rau qhov kawg tensile lub zog ntawm cov ntaub ntawv phaj.
Transverse-guided-weld-bent tests -Qhov kev ntsuam xyuas khoov yuav tsum tau txais yog tias tsis muaj qhov tawg lossis lwm yam tsis xws luag tshaj 1/8 nyob rau hauv. (3mm) nyob rau hauv ib qho kev taw qhia muaj nyob rau hauv lub vuam hlau los yog nruab nrab ntawm lub vuam thiab lub hauv paus hlau tom qab khoov.
Xov tooj cua-graphic Examination-Qhov ntev ntawm txhua qhov vuam ntawm chav kawm X1 thiab X2 yuav tsum tau kuaj xyuas hluav taws xob raws li thiab ua tau raws li cov cai ntawm ASME Boiler thiab Pressure Vessel Code, Tshooj xya, kab lus UW-51.
Tus neeg tsim khoom lub npe lossis cim
Tus naj npawb Specification (xyoo-hnub los yog xav tau)
Loj (OD, WT, ntev)
Qib (A lossis B)
Hom yeeb nkab (F, E, lossis S)
Kev ntsuas siab (seamless steel yeeb nkab nkaus xwb)
Kub naj npawb
Cov ntaub ntawv ntxiv uas tau teev tseg hauv daim ntawv xaj yuav khoom.
Quantity (foot, meters, los yog tus naj npawb ntawm qhov ntev)
Lub npe ntawm cov khoom (steel yeeb nkab, hluav taws xob fusion welded)
Specification naj npawb
Qib thiab chav kawm npe
Loj (sab nraum lossis sab hauv txoj kab uas hla, ib txwm lossis tsawg kawg ntawm phab ntsa thickness)
Length (tshwj xeeb los yog random)
Xaus tiav
Kev xaiv yuav khoom
Cov kev xav tau ntxiv, yog tias muaj.
Bare yeeb nkab lossis Dub / Varnish txheej / Epoxy txheej / 3PE txheej (raws li cov neeg siv khoom xav tau);
Hauv xoob;
Ob qhov xaus nrog qhov kawg tiv thaiv;
Plain kawg, bevel kawg (2 "thiab saum toj no nrog bevel kawg, degree: 30 ~ 35 °), customized;
Kos npe.
Tam sim no peb muaj cov kws tshaj lij, pab pawg ua haujlwm los muab cov kev pabcuam zoo rau peb cov neeg siv khoom.Peb feem ntau ua raws li cov lus qhia ntawm cov neeg siv khoom, cov ntsiab lus tshwj xeeb rau SSAW/Sawl API 5L Spiral Welded Carbon Steel Pipe Natural Gas and Oil Pipeline, Tsis tas li ntawd, peb yuav qhia cov neeg siv khoom kom zoo txog cov txheej txheem thov los txais yuav peb cov kev daws teeb meem. thiab txoj kev xaiv cov khoom tsim nyog.
Nqe tshwj xeeb rauTuam Tshoj LSAW / SSAW Steel Yeeb Nkab thiab Welded Yeeb Nkab, Peb lub hom phiaj yog kom xa cov nqi zoo tshaj plaws rau peb cov neeg siv khoom thiab lawv cov neeg siv khoom.Qhov kev cog lus no permeates txhua yam peb ua, tsav peb txuas ntxiv txhim kho thiab txhim kho peb cov kev daws teeb meem thiab cov txheej txheem kom ua tiav koj cov kev xav tau.
