Spirally Welded Steel Pipes ASTM A252 Giredhi 1 2 3
Mechanical Property
| Grade 1 | Grade 2 | Grade 3 | |
| Yield Point kana goho simba, min, Mpa (PSI) | 205(30 000) | 240(35 000) | 310(45 000) |
| Kusimba simba, min, Mpa (PSI) | 345(50 000) | 415(60 000) | 455(66 0000) |
Kuongorora kwechigadzirwa
Simbi haifaniri kunge iine 0.050% phosphorous.
Kusiyana Kunobvumirwa Muhuremu uye Zviyero
Hurefu hwega hwega hwemurwi wepombi huchayerwa zvakaparadzana uye huremu hwayo hahuzosiyane kupfuura 15% pamusoro kana 5% pasi pehuremu hwayo hwekufungidzira, huchiverengerwa pachishandiswa kureba kwayo nehuremu hwayo pakureba kweyuniti.
Iyo dhayamita yekunze haifanire kusiyana kupfuura ± 1% kubva kune yakatsanangurwa yekunze dhayamita
Ukobvu hwemadziro chero nguva haufanire kupfuura 12.5% pasi peiyo yakataurwa madziro ukobvu
Urefu
Single random urefu: 16 kusvika 25ft (4.88 kusvika 7.62m)
Hurefu hwakapetwa kaviri: pamusoro pe25ft kusvika 35ft (7.62 kusvika 10.67m)
Hurefu hwakafanana: musiyano unobvumidzwa ±1in
Ends
Mirwi yepombi inofanira kuiswa pachena, uye maburi ari kumigumo anofanira kubviswa.
Kana iyo pombi inopera yakatsanangurwa kuve bevel inopera, kona ichave 30 kusvika 35 degree
Product marking
Hurefu hwega hwega hwemurwi wepombi huchanyatso cherechedzwa nekuita stenciling, kutsika, kana kutenderedzwa kuratidza: zita kana mhando yemugadziri, nhamba yekupisa, maitiro emugadziri, mhando yehelical seam, dhayamita rekunze, ukobvu hwemadziro, kureba, uye uremu pahurefu hweyuniti, iyo yakatarwa uye giredhi.
