LSAW (Longitudinal Submerged Arc Welded) Dhuumaha birta waa nooc ka mid ah tuubooyinka birta alxanka leh ee la soo saaro iyadoo la isticmaalayo habka alxanka arc hoostiisa.
| Dhexroor ka baxsan | 325-2020MM |
| Dhumucda | 7.0-80.0MM (dulqaad +/- 10-12%) |
| Dhererka | 6M-12M |
| Heerka | API 5L, ASTM A553, ASTM A252 |
| Heerka Birta | Fasalka B, x42, x52 |
| Dhuumaha Dhammaad | Kudhammaanta birta ee dhamaadka birta ah ama aan lahayn tuubo |
| Dusha Dhuumaha | Madaw Dabiiciga ah oo Madaw 3PE Dahaaran |
API 5L:Heerkan waxaa dejiyey Machadka Batroolka Mareykanka wuxuuna qeexayaa shuruudaha soo saarista tuubada khadka ee loo isticmaalo gudbinta saliidda, gaaska, iyo alaabada kale ee ku saleysan batroolka. U hoggaansanaanta API 5L waxay hubisaa in tuubada birta LSAW ay buuxiso tayada lagama maarmaanka ah iyo shuruudaha waxqabadka ee isticmaalka warshadaha saliidda iyo gaaska.
ASTM A53:ASTM A53 waa qeexida caadiga ah ee tuubooyinka, birta, madow iyo kuwa kulul, zinc-dahaarka, alxanka, iyo bilaa-la'aanta. U hoggaansanaanta ASTM A53 waxay hubisaa in tuubada birta LSAW ay buuxiso shuruudaha gaarka ah ee loogu talagalay isticmaalka farsamooyinka iyo codsiyada cadaadiska, iyo sidoo kale isticmaalka guud.
ASTM A252:tilmaanta caadiga ah ee tusinnada tuubooyinka birta welded iyo kuwa aan fiicneyn. Marka ay timaado LSAW (Longitudinal Submerged Arc Welded) tuubooyinka birta, u hoggaansanaanta ASTM A252 waxay si gaar ah u khusaysaa codsiyada ku lug leh tuubooyinka birta ee loo isticmaalo mashaariicda dhismaha iyo dhismaha. ASTM A252 waxay qeexaysaa shuruudaha farsamada ee tuubooyinka tuubooyinka birta, oo ay ku jiraan cabbirada, sifooyinka farsamada, iyo hababka tijaabada.
Tuubooyinka birta ah ee LSAW ee u hoggaansama ASTM A252 waxaa loogu talagalay inay buuxiyaan shuruudaha gaarka ah ee loogu talagalay isticmaalka codsiyada, sida dhismaha aasaasiga ah, dhismayaasha badda, dhismaha buundada, iyo mashaariicda kale ee injineernimada madaniga ah. U hoggaansanaanta ASTM A252 waxay hubisaa in tuubooyinka birta ee LSAW ay buuxiyaan tayada lagama maarmaanka ah, waxqabadka, iyo heerarka badbaadada ee loogu talagalay isticmaalkooda codsiyada tuullaynta.
