Peb vam khom raws li kev xav, kev hloov kho tshiab tsis tu ncua hauv txhua ntu, kev txhim kho thev naus laus zis thiab tau kawg ntawm peb cov neeg ua haujlwm uas koom ncaj qha rau hauv peb txoj kev vam meej rau Original Factory A53 A333 A106 St45 Sch40 DN15 Q235B Q355b API 5L Carbon Black Thick Wall Loj Diameter Cold Sealess Spir Galvanized / Welded / Precision Steel Tube / Yeeb Nkab ., Peb pheej niaj hnub tsim peb lub koom haum kev lag luam "zoo nyob hauv kev lag luam, credit assures kev koom tes thiab khaws cov ntsiab lus hauv peb lub siab: cov neeg siv khoom ua ntej.
Peb vam khom raws li kev xav tswv yim, kev hloov kho tshiab tsis tu ncua hauv txhua ntu, kev nce qib thev naus laus zis thiab tau kawg ntawm peb cov neeg ua haujlwm uas koom ncaj qha rau hauv peb txoj kev vam meej.Tuam Tshoj Precision Steel Tube thiab Precision Steel Yeeb Nkab, Peb tau yeej lub koob npe nrov ntawm cov neeg siv khoom txawv teb chaws thiab hauv tsev.Ua raws li kev tswj hwm txoj cai ntawm "qhib taw qhia, cov neeg siv khoom ua ntej, kev ua haujlwm siab thiab kev pabcuam loj", peb zoo siab tos txais cov phooj ywg los ntawm txhua qhov chaw ntawm lub neej los koom tes nrog peb.
Metallurgical zog ntawm cov khoom
Longitudinal submerged arc welded kav yog tsim los ntawm steel daim hlau, thaum kauv welded kav yog tsim los ntawm kub dov coils.Cov txheej txheem kub-dov strip unit dov txheej txheem muaj ntau qhov zoo thiab muaj cov txheej txheem metallurgical muaj peev xwm kom tau txais cov khoom zoo ntawm cov yeeb nkab kab hlau.Piv txwv li, qhov tso zis tso zis yog nruab nrog lub tshuab dej txias kom ceev cov cua txias, uas tso cai rau kev siv cov khoom siv qis qis kom ua tiav cov qib tshwj xeeb lub zog thiab qhov kub thiab txias toughness, yog li txhim kho cov weldability ntawm cov hlau.Txawm li cas los xij, qhov system no tsis tshua muaj nyob rau hauv steel sheet ntau lawm cov nroj tsuag.Cov ntsiab lus ntawm cov hlau (carbon sib npaug) ntawm cov coils feem ntau qis dua li cov qib zoo sib xws ntawm cov hlau phaj, uas kuj tseem txhim kho cov weldability ntawm kauv welded kav.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias, vim hais tias cov kauv welded yeeb nkab coil dov kev taw qhia tsis yog perpendicular mus rau cov kev taw qhia ntawm cov yeeb nkab steel axis (nws pinch tov nyob ntawm lub kauv lub kaum sab xis ntawm cov yeeb nkab steel), thaum ncaj seam steel yeeb nkab steel phaj dov. kev taw qhia perpendicular mus rau cov kev taw qhia ntawm cov yeeb nkab steel axis, thiab yog li, cov khoom siv kauv welded yeeb nkab yog zoo dua li ncaj seam steel yeeb nkab tawg tsis kam.
Vuam txheej txheem
Los ntawm cov txheej txheem welding, kauv welded yeeb nkab thiab ncaj seam steel yeeb nkab vuam txoj kev yog tib yam, tab sis ncaj seam welded yeeb nkab yuav inevitably muaj ntau ding weld, yog li txoj kev pheej hmoo ntawm vuam tsis xws luag yog loj heev, thiab cov residual kev nyuaj siab ntawm vuam. nyob rau hauv lub ding weld yog loj, lub weld hlau feem ntau nyob rau hauv ib tug peb-txoj kev kev nyuaj siab lub xeev, ua rau muaj peev xwm ntawm cracking.
Ntxiv mus, raws li cov txheej txheem submerged arc vuam, txhua qhov vuam yuav tsum nyob ntawm qhov pib arc thiab arc extinguishing, tab sis txhua qhov ncaj seam welded yeeb nkab nyob rau hauv welded annular seam, tsis tuaj yeem ua tiav qhov xwm txheej, yog li tej zaum yuav muaj ntau qhov vuam tsis xws ntawm lub arc. tua hluav taws.
Chemical composition table
Mechanical zog | Tshuaj muaj pes tsawg leeg | |||||||||
Yield zog | Tensile zog | Elongation | C | Si | Mn | S | P | |||
MPa | kg/mm² | MPa | kg/mm² | min | Tsis loj dua | Tsis loj dua | Tsis loj dua | |||
Q215A Q215B | 215 | 22 | 335-410 : kuv | 34-42 : kuv | 31 | 0.09-0.15 dr hab | 0.03 ib | 0.25-0.55 Nws | 0.050 0.045 Nws | 0.045 ib |
Q235A Q235B qw 235c qw 235d | 235 | 24 | 375-460 : kuv | 38-47 : kuv | 26 | 0.14-0.22 0.12-0.20 dr hab ≤ 0.18 ≤ 0.17 | 0.30 Nws | 0.30-0.65 0.30-0.70 Nws 0.35-0.80 Nws 0.35-0.80 Nws | 0.50 0.45 Nws 0.40 Nws 0.035 ib | 0.045 0.045 Nws 0.040 ib 0.035 ib |
16Mn (Q345B) | 345 | 35 | 510-600 Nws | 51.60 ib | 22 | 0.12-0.20 Nws | 0.20-0.55 Nws | 1.2-1.6 | 0.045 ib | 0.045 ib |
X42 | 289 | 29.5 Nws | 413 | 42.1 ib | 0.28 ib | - | 1.25 | 0.030 Nws | 0.030 Nws | |
X52 | 358 | 36.5 ib | 455 | 46.4 ib | 0.30 Nws | - | 1.35 Nws | 0.030 Nws | 0.030 Nws | |
X56 | ib 386 | 39.4 ib | 489 ib | 49.9 ib | 0.26 | - | 1.35 Nws | 0.030 Nws | 0.030 Nws | |
X 60 | 413 | 42.1 ib | 517 ib | 52.7 ib | 0.26 | - | 1.35 Nws | 0.030 Nws | 0.030 Nws | |
X 65 | 448 ib | 45.7 ib | 530 | 54.0 ua | 0.26 | - | 1.40 Nws | 0.030 Nws | 0.030 Nws | |
X 70 | 482 ib | 49.2 ib | 565 ib | 57.6 ib | 0.26 | - | 1.40 Nws | 0.030 Nws | 0.030 Nws | |
l245 ua | 245 | 415 | 21 | 0.26 | 1.15 | 0.030 Nws | 0.030 Nws | |||
l290 ua | 290 | 415 | 21 | 0.28 ib | 1.25 | 0.030 Nws | 0.030 Nws | |||
l360 ua | 360 | 460 | 19 | 0.3 | 1.25 | 0.030 Nws | 0 |
Khoom Paub meej
Khoom muag | Kev tsim kho ASTM A106 A36 A53 Kauv Welded Dub Steel Tube carbon steel kauv welded raj yeeb nkab |
Qib | GRB, ST52, ST42, ST35, ST45, X42, X52, X56, X60, X70, X85 |
Txuj | ASTM A53, ASTM A500;GB / T3091, GB / T3094;DIN EN10025;DIN EN10217-2005; BS EN10217;BS EN10219;BS EN10025;JIS G3466 |
Cov txheej txheem | ERW, Welded, Seamless, Kub Rolled, Txias Drawn |
OD | Loj 8 "mus rau 142" Sab Nraud Diameter 219mm txog 3620mm |
Thickness | 1.5mm-30mm |
Ntev | 1) Tib Random Length thiab ob chav Random Length. 2) SRL: 3M-5.8M DRL: 10-11.8M lossis Raws li cov neeg thov ntev. 3) Ntev ntev (5.8m, 6m, 12m) |
Cov yeeb nkab kawg | 1) Plain 2) Beveled 3) Xov nrog coupling thiab yas hau |
Xaus tiv thaiv | 1) Yas cap 2) Hlau tiv thaiv 3) raws li kev thov |
Kev kho saum npoo | 1) xim dub 2) kua roj vanish 3) roj los yog galvanized 4) anti-corrosion coated (3PE / 3LPE) |
Pob | Loose pob, bundled yeeb nkab nrog ob txoj hlua ntawm ob qho kawg kom yooj yim thauj khoom thiab tso tawm, Xaus nrog lub kaus mom yas. |
Export rau | Singapore, Canada, Indonesia, Kauslim Teb, Tebchaws USA, UK, Thaib, Saudi Arabia, Nyab Laj, Is Nrias teb, Peru, Ukraine, Brazil, South Africa, thiab lwm yam. |
Khoom Qhia
FAQ
1.Vim li cas koj xaiv peb?
Peb lub tuam txhab tau nyob hauv Alibaba.com rau 12 xyoos.Peb tswj cov khoom zoo nruj heev, muaj cov neeg tshwj xeeb rau qhov zoo.
Yog tias koj tau txais tus nqi qis dua los ntawm lwm tus neeg muag khoom, peb yuav them rov qab ob zaug rau cov neeg siv khoom txog tus nqi siab dua.
2.Koj lub sijhawm xa khoom ntev npaum li cas?
Raws li qhov kom muaj nuj nqis. Feem ntau nyob rau hauv 2-7 hnub yog nyob rau hauv Tshuag.Thiab 15-20 hnub yog tsis nyob rau hauv Tshuag.
3.Koj cov nqe lus them nqi yog dab tsi?
A: Los ntawm T / T 30% ua ntej, thiab 70% ua ntej xa khoom.
B: 100% L / C thaum pom.
C: Los ntawm T / T 30% ua ntej, thiab 70% L / C thaum pom.
4.Koj puas muab cov qauv?Puas yog dawb?
Yog lawm, peb muab cov qauv dawb tab sis tsis them tus nqi thauj khoom.
5.Yuav ua li cas yog tias tus neeg siv khoom tsis txaus siab?
Yog tias muaj teeb meem nrog cov khoom, peb ua lub luag haujlwm tag nrho.
Yog tias muaj teeb meem hauv kev thauj mus los, peb yuav pab koj daws nws.
Peb vam khom raws li kev xav, kev hloov kho tshiab tsis tu ncua hauv txhua ntu, kev txhim kho thev naus laus zis thiab tau kawg ntawm peb cov neeg ua haujlwm uas koom ncaj qha rau hauv peb txoj kev vam meej rau Original Factory A53 A333 A106 St45 Sch40 DN15 Q235B Q355b API 5L Carbon Black Thick Wall Loj Diameter Cold Sealess Spir Galvanized / Welded / Precision Steel Tube / Yeeb Nkab ., Peb pheej niaj hnub tsim peb lub koom haum kev lag luam "zoo nyob hauv kev lag luam, credit assures kev koom tes thiab khaws cov ntsiab lus hauv peb lub siab: cov neeg siv khoom ua ntej.
Original FactoryTuam Tshoj Precision Steel Tube thiab Precision Steel Yeeb Nkab, Peb tau yeej lub koob npe nrov ntawm cov neeg siv khoom txawv teb chaws thiab hauv tsev.Ua raws li kev tswj hwm txoj cai ntawm "qhib taw qhia, cov neeg siv khoom ua ntej, kev ua haujlwm siab thiab kev pabcuam loj", peb zoo siab tos txais cov phooj ywg los ntawm txhua qhov chaw ntawm lub neej los koom tes nrog peb.