ASTM A53 Qib B Seamless Steel Yeeb Nkab
ASTM A53 Qib Byog covfeem ntau dav siv specificationrau dav -lub hom phiaj seamless carbon steel yeeb nkab thoob ntiaj teb. Nws muaj qhov zoo tshaj qhov sib npaug ntawm lub zog, tus nqi, thiab muaj rau ntau yam kev siv.
Cov yam ntxwv tseem ceeb
| Feature | Kev piav qhia |
|---|---|
| Khoom siv | Carbon Steel |
| Qib | B(Standard zog) |
| Hom | Hom S(Tsis muaj seamless) |
| Ua tiav | Dublos yogGalvanized(kub-dip zinc coated) |
| Kev siv thawj zaug | General kua conveyance, kev txhawb nqa |
Vim li cas Qib B yog Tus Qauv
Optimal zog:35,000 psi tawm los - muaj zog txaus rau feem ntau daim ntawv thov
Weldability zoo heev:Tsawg carbon sib npaug (~ 0.36)
Tus nqi -zoo:Tus nqi zoo tshaj rau kev ua haujlwm
Muaj dav:Stocked los ntawm distributors thoob ntiaj teb
Code raws:Ua tau raws li cov qauv kev lag luam feem ntau
Mechanical Properties
| Khoom | Kev xav tau |
|---|---|
| Tensile zog, min | 415 MPa (60,000 psi) |
| Yield zog, min | 240 MPa (35,000 psi) |
| Elongation, min | Nws txawv ntawm phab ntsa thickness |
Chemical Composition (Hom S - Seamless)
| Element | Kev sib xyaw (%) |
|---|---|
| Carbon (C), max | 0.30 |
| Manganese (Mn), max | 1.20 |
| Phosphorus (P), max | 0.05 |
| Sulfur (S), max | 0.045 |
| Tooj liab (Cu), min * | 0.40 (thaum muaj kev tiv thaiv corrosion) |
Dub vs Galvanized
| Yam ntxwv | Cov yeeb nkab dub | Galvanized yeeb nkab |
|---|---|---|
| Nto | Mill nplai / roj txheej | Zinc coated (~ 85 µm) |
| Corrosion Resistance | Tsis zoo (yuav tsum tau pleev xim) | Zoo heev(zinc tiv thaiv) |
| Nqi | Tus nqi pib | +30-50% |
| Zoo tshaj rau | Cov pa roj hauv tsev, qhov chaw qhuav | Sab nraum zoov, dej, chaw raug |
| ⚠️ Lus ceeb toom | Txheem rau cov kab roj | TSIS TAU rau cov kab roj |
Daim ntawv thov
Cov kav dej & HVAC:
Cov kav dej(galvanized)
Kev faib tawm cov pa roj(tsuas yog dub)
Drain / khib nyiab / vent systems
HVAC tub yees kab
Industrial & Structure:
Compressed cua tshuab
Txheej txheem kav(tsis yog{0}}cov kua dej corrosive)
Scaffolding & handrails
Txhawb kab & bollards
Roj & Roj:
Roj kab
Tsim cov kab dej
Cov kav dej siv hluav taws xobhauv tej chaw
Kev tsim khoom
Seamless (Hom S) Production:
ntawv nyeem
Steel billet → Cua sov → Rotary tho → Elongation → Sizing → Txiav → [Galvanizing: Ntxuav → Flux → Zinc da dej] → Test
Galvanizing txheej txheem:
Kub:~ 450℃(850℃F) zinc da dej
Txheej hnyav:Yam tsawg kawg nkaus 1.8 oz / ft²
Ua tiav:Cov yam ntxwv spangled tsos
Kev xeem yuav tsum tau
| Kuaj | Kev xav tau |
|---|---|
| Hydrostatic Test | Yuav tsum tau(min 1000 psi) |
| Flattening Test | Yuav tsum tau seamless |
| Khoov Test | Rau hom welded nkaus xwb |
| Zinc Txheej Test | Rau galvanized yeeb nkab |
| Kev tshuaj xyuas qhov muag | 100% rau qhov tsis xws luag |
Hydrostatic Test Pressure Formula:
ntawv nyeem
P=2St/D (yam tsawg kawg nkaus 1000 psi) Qhov twg S=60% ntawm cov zis yam tsawg kawg nkaus (21,000 psi)
Qhov ntau thiab tsawg & Teem sijhawm
Feem ntau Nrov Loj:
| NPS | Cov Sijhawm Sib Tham | Tej kev siv |
|---|---|---|
| ½" - 2" | 40, 80 | Cov kav dej, cov kav dej |
| 2½" - 8" | 40, TSI | Cov txheej txheem piping, kev siv hluav taws xob |
| 10" - 24" | STD, XS | Cov dej num loj, cov khoom siv loj |
Ntev Options:
Ib qho Random (SRL):18-22 ft
Ob chav Random (DRL):38-44 ft
Txiav Length:Tshwj xeeb ntev raws li kev txiav txim
Kev txiav txim siab tsim
Kev ntsuas ntsuas ntsuas:
Siv cov cai siv tau (ASME B31.1, B31.3, B31.4, B31.8):
ntawv nyeem
t = (P × D) / (2 × S × E + P × Y)
Piv txwv Tso Cai Stress (ASME B31.3 @ 100℃F):15,000 psi
Kub txwv:
Qhov siab tshaj plaws:~ 430℃(800℃F) rau cov yeeb nkab dub
Galvanized:~ 200℃(400℃F) max
Rau qhov kub siab dua:Siv A106
Sib piv nrog A106
| Parameter | A53 Qib B | A106 Qib B |
|---|---|---|
| Kev Pabcuam Kub | Tsawg-temp(~ 430℃max) | Siab -temp(rau 540 degree) |
| Chemistry Control | Basic | nruj(zoo lis, Si min) |
| Kev tsim khoom | Seamless, ERW, los yog welded | Seamless nkaus xwb |
| Nqi | qis | 20-40% siab dua |
| Zoo tshaj rau | Lub hom phiaj dav dav, kev siv hluav taws xob | High - txheej txheem temp, chav |
Ordering Information
Standard Order Format:
ntawv nyeem
ASTM A53 Qib B Hom S [Size: NPS & Teem sijhawm] [Length: SRL, DRL, lossis txiav] [Tiav: Dub lossis Galvanized] [Xiav: Plain, T&C, lossis beveled]
Piv txwv:
Lub cev dub:A53 Gr.B Hom S, NPS 4 Sch 40, 20' RLM, Plain
Galvanized:A53 Gr.B Type S Galv, NPS 2 Sch 40, 21' RLM, T&C
⚠️ Cov kev txwv tseem ceeb
Tsis txhob siv rau:
Boiler raj(siv A192 / A210)
Siab - qhov kub thiab txias (>400℃F - siv A106)
Cov tshuaj corrosivetsis muaj kev tiv thaiv
Kev pabcuam Cryogenic(siv A333)
Galvanized rau roj kab(kev nyab xeeb)
Cov yam ntxwv ntawm kev nyab xeeb:
Tsawg kawg phab ntsakev xav
Corrosion pubFeem ntau 1/16 "-1/8"
Txhawb qhov sib nrugraws li muaj cai
Xov kev koom teskev xav tau
Kev ua lag luam
Kev siv Statistics:
~80%ntawm tag nrho cov yeeb nkab A53 tsim yog Qib B
Feem ntausteel yeeb nkab nyob rau hauv North America
Hom S (seamless)~ 40% ntawm Qib B ntau lawm
Kev lees txais thoob ntiaj tebraws li tus qauv kav
Nqe Factors:
Seamless hwm:20-40% dhau ERW
Galvanizing hwm:30-50% ntawm dub
Kev txo nqi kom muaj nuj nqis:Qhov tseem ceeb rau cov tsheb thauj khoom
Market fluctuations:Ua raws li tus nqi steel raw khoom
Quality & Certification
Common Certifications:
ASME SA53:Rau siab nkoj / boiler sab nraud piping
UL Daim Ntawv Pov Thawj:Rau qee yam kev siv
NSF/ANSI 61:Rau kev sib cuag nrog dej
Mill Test Certificate:Feem ntau 2.1 lossis 3.1 hom
Cov Lus Cog Tseg:
Txhua lub raj yuav tsum qhia:
Chaw tsim tshuaj paus lub npe/trademark
A53 Bnpe
Loj (NPS)
Teem caij lossis hnyav
Thaum tshav kub kub tooj (yog tias MTC muab)
International sib npaug
| Thaj tsam | Standard sib npaug |
|---|---|
| ISO | TS EN ISO 3183 L245 |
| Teb chaws Europe | TS EN 10255 |
| Nyiv | JIS G3452 |
| Tuam Tshoj | GB / T 3091 (welded) / GB / T 8163 (tsis muaj seamless) |
Kev Kho & Kev Pabcuam Lub Neej
Kev Pabcuam Lub Neej Cia Siab:
| Ib puag ncig | Cov yeeb nkab dub | Galvanized yeeb nkab |
|---|---|---|
| Hauv tsev, qhuav | 30+ xyoo | 50+ xyoo |
| Sab nraum zoov, nroog | 10-15 xyoo | 20-40 xyoo |
| Kev lag luam | 5-10 xyoo | 10-25 xyoo |
| Marine / ntug dej hiav txwv | 3-7 xyoo | 7-15 xyoo |
Tej Teeb Meem:
Sab hauv corrosion(dej systems)
Xov xau(kev sib dhos tsis raug)
Sab nraud corrosion(tsis muaj kev tiv thaiv dub yeeb nkab)
Galvanizing kev puas tsuaj(txiav / vuam tom qab txheej)
Hauv cov ntsiab lus: ASTM A53 Qib B seamless yeeb nkab yog cov haujlwm ua haujlwm ntawm cov kav dej, muab kev ntseeg siab, nqi -cov kev daws teeb meem zoo rau suav tsis txheeb. Nws versatility nyob rau hauv dub los yog galvanized tiav, ua ke nrog ntau muaj thiab kev cai txais, ua rau nws lubdefault xaivrau cov kws tsim khoom, cov neeg cog lus, thiab cov neeg ua haujlwm saib xyuas thoob ntiaj teb rau cov uas tsis yog - cov khoom siv thauj khoom tseem ceeb thiab cov khoom siv.
