ASTM A53/A53M - Txheem Specification rau Yeeb Nkab, Hlau, Dub thiab Kub-Dipped, Zinc-Coated, Welded thiab Seamless
ASTM A53 Qib Byog ib qho ntawm cov qauv siv dav tshaj plaws rau - lub hom phiajcev steelhauv kev tsim kho, kev lag luam, thiab kev siv tshuab.
Cov yam ntxwv tseem ceeb
| Feature | Kev piav qhia |
|---|---|
| Khoom siv | Carbon Steel |
| Qib | Qib A(qis zog),Qib B(feem ntau, muaj zog dua) |
| Hom | Hom F(Furnace Butt-Welded),Hom E(Electric Resistance Welded),Hom S(Tsis muaj seamless) |
| Txheej txheej | Dub(uncoated) los yogKub-Dipped Zinc-Coated(galvanized) |
| Kev siv thawj zaug | Tsawg-siabCov dej xa tawm, kev txhawb nqa cov qauv, fencing, scaffolding |
Qib B yuav tsum muaj
Tshuaj muaj pes tsawg leeg
| Element | Kev sib xyaw (%) |
|---|---|
| Carbon (C), max | 0.30 |
| Manganese (Mn) | 1.20 max |
| Phosphorus (P), max | 0.05 |
| Sulfur (S), max | 0.045 |
| Tooj liab (Cu), min * | 0.40 (thaum teev rau atmospheric corrosion kuj) |
Mechanical Properties
| Khoom | Kev xav tau |
|---|---|
| Tensile zog, min | 415 MPa (60,000 psi) |
| Yield zog, min | 240 MPa (35,000 psi) |
| Elongation (hauv 50mm), min | Nws txawv ntawm phab ntsa thickness |
Yam khoom sib piv
| Hom | Kev tsim khoom | Cov yam ntxwv tseem ceeb | Qhov Loj |
|---|---|---|---|
| Hom S | Seamless(SMLS) | Tsis muaj weld seam, uniform zog, nyiam rau kev siv siab | Txhua qhov loj me |
| Hom E | Hluav taws xob Resistance Welded(ERW) | Longitudinal weld, nqi -zoo, dav muaj | Up to NPS 24 |
| Hom F | Rauv Butt-Welded | Nruam weld, tus nqi qis tshaj, txwv kev ntsuas siab | NPS 1/8 to NPS 4 |
Txheej txheej
| Txheej hom | Kev piav qhia | Daim ntawv thov |
|---|---|---|
| Cov yeeb nkab dub | Uncoated, nrog zeb nplai lossis lub teeb roj txheej | Cov kav dej hauv tsev, cov kab roj (qhov twg corrosion tsis muaj kev txhawj xeeb) |
| Galvanized yeeb nkab | Kub-dipped zinc txheej | Kev siv sab nraum zoov, cov kab dej, cov qauv siv raug huab cua |
Galvanization txheej txheem:Cov yeeb nkab yog immersed nyob rau hauv molten zinc (≈450℃/ 850℃F) los tsim cov corrosion{2}}resistant txheej ntawm 50-85 µm thickness.
Cov ntawv thov siv
Cov kav dej & HVAC:Cov kab dej, cua faib tshuab
Qauv:Handrails, fencing, scaffolding, txhawb txhua
Industrial:Tsawg-sab siab, cua, roj, thiab roj kab
Kev tsim kho:Conduit rau hluav taws xob thaiv (thaum teev)
Agricultural:Irrigation systems, khoom thav duab
Cov kev txwv tseem ceeb
⚠️ Kev txwv tseem ceeb:
Tsis yog rau siab -kev pabcuam kub:Qhov kub siab tshaj plaws tau pom zoo ≈430℃(800℃F)
Tsawg siab ntsuas:Yuav tsum suav nrog Barlow's formula nrog rau qhov tsim nyog kev nyab xeeb
Galvanized yeeb nkab yuav tsum tsis txhob siv rau cov roj kab:Zinc txheej tuaj yeem flake thiab clog li qub / orifices
Tsis yog rau kev pabcuam tseem ceeb:Tsis sib npaug rau ASTM A106 rau siab -kev siv kub
Kev xeem yuav tsum tau
| Kuaj | Kev xav tau |
|---|---|
| Hydrostatic Test | Yuav tsum tau ua rau tag nrho cov yeeb nkab siab (Hom S & E) |
| Khoov Test | Yuav tsum tau welded yeeb nkab (Hom E & F) |
| Flattening Test | Yuav tsum tau seamless thiab welded yeeb nkab |
| Zinc Txheej Test | Rau galvanized yeeb nkab - yam tsawg kawg nkaus txheej hnyav tau teev tseg |
Kev sib piv nrog cov qauv zoo sib xws
| Txuj | Kev siv thawj zaug | Qhov tseem ceeb sib txawv ntawm A53 Gr.B |
|---|---|---|
| ASTM A106 Gr.B | Siab -kev pabcuam kub | Muaj peev xwm kub dua, nruj dua chemistry tswj |
| API 5L Gr.B | Kev thauj mus los hauv raj | Cov kev xav tau zoo dua toughness, yuav tsum tau kuaj xyuas rau qhov loj dua |
| ASTM A500 1 | Lub cev muaj zog | Zoo dua dimension tolerances rau cov qauv siv |
Ordering Information
Thaum xaj A53 Gr.B yeeb nkab, qhia meej:
Qib:B (feem ntau)
Hom:S (Seamless), E (ERW), los yog F (Lub qhov cub-welded)
Txheej:Dub (liab) los yog Galvanized (zinc{0}}coated)
Loj:NPS thiab Teem caij (piv txwv li, NPS 2, Teem sijhawm 40)
Ntev:Random (RAND) los yog Ib Leeg Random Length (SRL), los yog txiav ntev
Nco tseg:ASTM A53 tau txais rau ASME B31.1 (Power Piping) thiab B31.3 (Cov Txheej Txheem Piping) cov ntawv thovtsuas yog thaum teev nyob rau hauv tus tsimthiabnyob rau hauv nws cov kev txwv kub. Rau chav ua haujlwm siab tshaj 200℃(400℃F), A106 feem ntau nyiam.
