ASTM A53 Qib A Seamless Steel Yeeb Nkab
ASTM A53 Qib Ayog covqis - zog xaivnyob rau hauv A53 specification rau seamless carbon steel yeeb nkab. Nws muab lub zog txaus rau ntau yam dav dav - cov phiaj xwm siv ntawm tus nqi qis dua li Qib B.
Cov yam ntxwv tseem ceeb
| Feature | Kev piav qhia |
|---|---|
| Khoom siv | Carbon Steel |
| Qib | A(Lub zog qis dua qib B) |
| Hom | Hom S(Seamless) - kuj muaj xws li ERW lossis Furnace Welded |
| Ua tiav | Dublos yogGalvanized |
| Kev siv thawj zaug | Lub teeb- lub luag haujlwm thauj cov kua dej, kev txhawb nqa cov qauv |
Mechanical Properties
| Khoom | Kev xav tau |
|---|---|
| Tensile zog, min | 330 MPa (48,000 psi) |
| Yield zog, min | 205 MPa (30,000 psi) |
| Elongation, min | Nws txawv ntawm phab ntsa thickness |
Chemical Composition (Hom S - Seamless)
| Element | Kev sib xyaw (%) |
|---|---|
| Carbon (C), max | 0.25 |
| Manganese (Mn), max | 0.95 |
| Phosphorus (P), max | 0.05 |
| Sulfur (S), max | 0.045 |
| Tooj liab (Cu), min * | 0.40 (thaum muaj kev tiv thaiv corrosion) |
Kev sib piv: Qib A vs Qib B
| Parameter | Qib A | Qib B |
|---|---|---|
| Yield zog | 30,000 psi | 35,000 psi(17% siab dua) |
| Tensile zog | 48,000 psi | 60,000 psi(25% siab dua) |
| Manganese Cov ntsiab lus | Tsawg (tsawg dua lossis sib npaug rau 0.95%) | Siab dua (tsawg dua lossis sib npaug li 1.20%) |
| Cov ntsiab lus carbon | Tsawg (tsawg dua lossis sib npaug rau 0.25%) | Siab dua (tsawg dua lossis sib npaug li 0.30%) |
| Nqi | 5-10% qis dua | Siab dua |
| Kev siv ntau | Tsawg dua (~ 15% ntawm A53) | Feem ntau(~ 80% ntawm A53) |
Daim ntawv thov
Qhov twg Qib A yog qhov tsim nyog:
Tsawg- cov kab dej siab(Cov kav dej hauv tsev)
Cov dej ntws
Lub teeb kev txhawb nqa(handrails, laj kab)
Conduit rau hluav taws xob thaiv
Agricultural irrigation(tsis tshua muaj siab)
Qhov twg siv Qib B hloov:
Gas kab
Siab dua - cov tshuab dej siab
Industrial compressed cua kab
Scaffolding thiab kev txhawb nqa hnyav
Feem ntau cov txheej txheem piping
Manufacturing & Testing
Seamless Production (Hom S):
ntawv nyeem
Steel billet → Cua sov → Rotary tho → Elongation → Sizing → Txiav → [Galvanizing yog tias tau teev tseg] → Test
Kev Xeem Xeem:
Hydrostatic Test:Yuav tsum tau (tsawg kawg 1000 psi)
Flattening Test:Yuav tsum tau seamless
Khoov Test:Rau hom welded nkaus xwb
Zinc Txheej Test:Rau galvanized yeeb nkab
Ordering Information
Hom Specifications:
ntawv nyeem
ASTM A53 Qib A Hom S NPS 2 Teem sijhawm 40 20' Random Length Dub (los yog Galvanized) Plain xaus (los yog Threaded & Coupled)
Qhov ntau thiab tsawg:
| NPS | Cov Txheej Txheem | Cov ntawv thov siv |
|---|---|---|
| 1/2" - 2" | 40 | Cov kav dej hauv tsev, cov kab hluav taws xob |
| 2½" - 6" | 40, TSI | Lub teeb muaj kev lag luam, kua dej |
| 8" - 12" | STD | Loj txoj kab uas hla qis -siab tshuab |
⚠️ Cov kev txwv tseem ceeb
Kub & Siab:
Qhov kub siab tshaj plaws:~ 430℃(800℃F)
Kev ntsuas siab: qis dua Qib Brau tib qhov loj / sijhawm
Kev suav tsim:Yuav tsum siv qib A tso cai rau kev ntxhov siab
Tsis pom zoo rau:
High-siab tshuab tshuab
Cov txheej txheem tseem ceeb ntawm cov kav dej
Heavy qauv loading
Kev pabcuam Cyclictsis muaj zog tsom xam
Kev xav txog nyiaj txiag
Tus Nqi Txuag vs Qib B:
Khoom siv:5-10% qis dua
Kev teeb tsa:Tib nqi zog
Lub neej voj voog:Tej zaum yuav muaj lub neej ua haujlwm luv dua hauv kev thov kev thov
Tus nqi zoo tshaj:Thaum lub zog xav tau tsawg heev
Txhaum-Txawm Kev Ntsuas:
ntawv nyeem
Siv Qib A thaum: 1. Tsim siab < 100 psi (7 bar) 2. Tsis yog- daim ntawv thov tseem ceeb 3. Tus nqi rhiab heev yog siab 4. Kev nyab xeeb yog dav dav
Kev Ua Raws Cai
ASME B31 Codes:
B31.1 Fais fab Piping:Txwv tsis pub siv
B31.3 Txheej Txheem Piping:Txais tau rau qeb D kua kev pab cuam
B31.4 Pipeline Tsheb thauj mus los:Txais tau rau qis -siab tshuab
B31.8 Gas kis tau tus mob:Txais tau nrog tsim nyog
Tso cai Stresses (Piv txwv ntawm 100℃F):
| Qib | Tso cai Stress (psi) |
|---|---|
| A53 Qib A | 12,000 |
| A53 Qib B | 15,000 |
| A106 Qib B | 17,100 |
Kev lag luam siv
Kev Lag Luam Qhia:
~15%ntawm tag nrho cov A53 yeeb nkab tsim
Feem ntaunyob rau hauv kev tsim kho vaj tse
Tsawg duanyob rau hauv industrial siv
Feem ntau teevlos ntawm tus nqi- tus neeg yuav khoom
Kev nyiam hauv cheeb tsam:
North America:Qib B nyiam (90% + ntawm kev ua lag luam)
Qee qhov kev lag luam export:Qib A tau teev tseg rau tus nqi vim li cas
Cov teb chaws tsim kho:Kev siv qib A ntau dua vim yog tus nqi rhiab heev
Lwm yam qauv
Zoo sib xws Lower -Cov kav dej muaj zog:
| Txuj | Yield zog | Sau ntawv |
|---|---|---|
| API 5L Qib A | 30,000 psi | Rau kev pabcuam kav dej |
| ASTM A135 Qib A | 30,000 psi | ERW tube nkaus xwb |
| ASTM A500 Qib A | 33,000 psi | Lub cev muaj zog |
Kev txiav txim siab zoo
Cov teeb meem muaj peev xwm:
Thinner tiag phab ntsavim raug tsim kam rau ua
Kev nyab xeeb qis duarau kev thauj khoom poob siab
Kev raug mob ntau duakom puas thaum lub sij hawm installation
Lub neej ua haujlwm luv duanyob rau hauv corrosive ib puag ncig
Cov lus qhia soj ntsuam:
Txheeb xyuas qhov qhab niantawm cov yeeb nkab ("A53 A")
Xyuas phab ntsa thicknessnrog ultrasonic ntsuas
Txheeb xyuas qhov ntsuas hydrostatictau ua
Tshawb xyuas daim ntawv pov thawj zeb xeemyog muaj
Yav tom ntej Trends
Kev siv qis qis:
Qib B dhau los ua qhov qubnyob rau hauv feem ntau specifications
Tus nqi sib txawvnqaim ntawm qib
Kev txhawj xeeb txog kev nyab xeebtsav tsheb specification rau Qib B
Qee thaj tsamphasing Qib A rau cov ntawv thov tseem ceeb
Hauv cov ntsiab lus: ASTM A53 Qib A seamless yeeb nkabmuab ibtus nqi- kev xaiv zoorau lub teeb- daim ntawv thov lub luag haujlwm uas tsis tas yuav muaj zog dua qib B. Thaum nws ua tau raws li cov cai rau ntau cov kev pabcuam, engineers nce ntxivQib B raws li qhov tsawg kawg nkausrau feem ntau daim ntawv thov vim nws txoj kev nyab xeeb zoo dua thiab cov nqi sib txawv tsawg. Kev tsom xam tsim kom zoo yog qhov tseem ceeb thaum siv Qib A kom ntseeg tau tias muaj kev nyab xeeb txaus.
