LSAW:Longitudinally Submerged Arc Welded Yeeb Nkab
Core nta thiab qhov zoo
Qhia Vuam txoj kev:Longitudinal submerged arc vuam (SAWL), nrog rau txoj hlua ncaj nraim thiab tsis muaj kauv weld seam.
Qhia High zog thiab siab toughness:haum rau kev kub siab, tsis tshua muaj kub, thiab corrosive ib puag ncig.
Ntau qhov ntau thiab tsawg:
Sab nraud txoj kab uas hla: Φ406 hli rau Φ1626 hli (16 "-64"), qee cov tuam ntxhab tuaj yeem ua tiav Φ3000 hli
Phab ntsa thickness: 6.0mm-75mm (kwv yees li 1/4 "-3")
Ntev: feem ntau 6M 12 m
Daim ntawv pov thawj: Ua raws li cov qauv thoob ntiaj teb xws li API 5L, ASTM, EN, ISO, GB, DNV, thiab lwm yam
Kev tsim khoom:feem ntau suav nrog ob txoj kev tsim,UAEthiabJCOE.
Cov cheeb tsam tseem ceeb ntawm daim ntawv thov
qhiaRoj thiab roj kis pipelines:accounting rau ntau tshaj 70% ntawm kev siv LSAW steel kav, tshwj xeeb tshaj yog haum rau ntev - deb, loj - txoj kab uas hla, thiab siab - siab kis tau tus mob
qhiaStructural engineering:xws li txuas hniav, cua turbine yees, tsev txhawb nqa pawg, thiab lwm yam
qhiaPile casing thiab foundation qauv:Ua raws li ASTM A252 tus qauv, siv rau cam khwb cia-hauv- qhov chaw pob zeb ua pob zeb lossis cov khoom thauj mus tas li- cov kabmob
Qhia Anticorrosion kho:Cov txheej txheem muaj xws li 3PE, FBE, epoxy, asphalt, thiab lwm yam., haum rau faus lossis marine ib puag ncig
Kev thov
EN10219 S355J0H cov yeeb nkab welded yog ua los ntawm kev nplua -cov hlau tsis muaj hlau, uas yuav tsum muaj qhov tsawg kawg nkaus lub zog ntawm 355MPa (nominal thickness Tsawg dua lossis sib npaug li 16 hli) thiab lub zog tensile ntawm 470-630MPa.
S:Cov qauv hlau.
355:Yam tsawg kawg nkaus yield zog (355 MPa) rau phab ntsa thickness Tsawg dua los yog sib npaug rau 16 hli.
J0: Cov khoom cuam tshuam. Guarantees tsawg kawg yog 27 Joules ntawm 0℃(Charpy V-notch test).
H: Hollow Section (tshwj xeeb yog tsim rau hollow profiles).
Chemical Composition (Cast Analysis)
Rau kev ua lag luam, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov Carbon Equivalent (CEV) tus nqi, vim nws cuam tshuam rau weldability. Qhov siab tshaj plaws CEV rau qib no yog feem ntau0.45%
| Element | Kev sib xyaw % (max) | Sau ntawv |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.22 | Tswj rau weldability |
| Silicon (Si) | Tsawg dua los yog sib npaug li 0.55 | |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.60 | Muab lub zog |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.035 | |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.035 | |
| Nitrogen (N) | Tsawg dua lossis sib npaug li 0.009 |
Mechanical Properties
Qhov no yog qhov chaw muag khoom tseem ceeb rau S355J0H: nws muaj lub zog siab nrog qhov zoo qis - kub toughness (0℃).
| Khoom | Tus nqi | Kev xav tau |
| Yield zog (ReH) | Ntau dua lossis sib npaug li 355 MPa (t Tsawg dua lossis sib npaug li 16 hli) Ntau dua lossis sib npaug rau 345 MPa (16mm Yam tsawg kawg nkaus kev ntxhov siab rau cov yas deformation |
|
| Tensile zog (Rm) | 470-630 MPa | Qhov kawg tawg lub zog |
| Elongation | Ntau dua lossis sib npaug li 20% | Ductility ntsuas |
| Impact Toughness (KV) | 27 J (ntawm 0 degree) | Qhov tseem ceeb rau kev siv qis - kub |
Kev tsim khoom
LSAW (Longitudinal Submerged Arc Vuam) Cov txheej txheem tsim khoom
Tsis zoo li cov kav dej seamless lossis ERW (Electric Resistance Welded) kav, LSAW tshwj xeeb yog siv rau cov kab loj loj thiab cov phab ntsa tuab. Nws feem ntau hu ua JCOE lossis UOE nyob ntawm txoj kev tsim
A. Cov txheej txheem JCOE
1. Ntug Milling:Steel daim hlau (skelp) yog beveled.
2.Pre-bending:Ntug yog crimped kom ntseeg tau tias weld geometry.
3. J/C/O Kev Ua Haujlwm:Lub phaj yog nias ib kauj ruam mus rau hauv "J" zoo, ces "C" zoo, thiab thaum kawg yog "O" zoo (lub tog raj kheej).
4.Submerged Arc Vuam (SAW):Lub seam yog welded nyob rau hauv thiab sab nraud siv ib tug granular flux. Cov txheej txheem no tsim kom muaj kev sib sib zog nqus sib sib zog nqus nrog cov hlaws du, muaj zog.
5.Expanding (Yeem):Cov yeeb nkab yog mechanically nthuav dav los txhim kho qhov tseeb qhov tseeb thiab txo cov kev ntxhov siab seem
Qib sib npaug
| Txuj | Qib | Sau ntawv |
| TS EN 10210 | S355J0H | Kub- tiav version (zoo sib xws chemistry, txawv manufacturing) |
| ASTM (US) | A572 Gr . 50 | Feem ntau siv rau kev tsim qauv |
| ASTM (US) | A500 gr. C | Txias- ua welded tubing |
| CSA (Canada) | G40.21 350W | Cov qauv steel qauv |
| JIS (Nyiv) | STK490 |
Peb qhov chaw nyob
Rm1406,14th/F No 208, Hongqi Road, Nankai Dist, Tianjin City, Suav teb
Xov tooj (WhatsApp/Wechat)
+86 16622033809
E -mail
alisa@tjshenzhoutong.com
Cim npe nrov: en10219 s355j0h lsaw steel yeeb nkab welded cs yeeb nkab, Tuam Tshoj en10219 s355j0h lsaw steel yeeb nkab welded cs yeeb nkab manufacturers, lwm tus neeg, Hoobkas
