ASTM A106 Qib A Seamless Steel Yeeb Nkab
ASTM A106 Qib Ayog covqis - qib zognyob rau hauv A106 specification rau seamless carbon steel yeeb nkab siv nyob rau hauvsiab -kev pabcuam kub. Nws muab tus nqi - kev xaiv zoo thaum tsis tas yuav muaj zog dua qib B lossis C.
Cov yam ntxwv tseem ceeb
| Feature | Kev piav qhia |
|---|---|
| Khoom siv | Cov pa roj carbon steel (Fine Grain Practice) |
| Qib | A(Kev xaiv qis zog) |
| Kev tsim khoom | Seamless (SMLS) nkaus xwb |
| Qhov kub thiab txias | Mus txog 540℃(1000℃F) |
| Kev Xav Tau Tshwj Xeeb | Fine grain xyaum & tua steel |
Mechanical Properties
| Khoom | Kev xav tau |
|---|---|
| Yield zog, min | 205 MPa (30,000 psi) |
| Tensile zog, min | 330 MPa (48,000 psi) |
| Elongation, min | Nws txawv ntawm phab ntsa thickness |
Tshuaj muaj pes tsawg leeg
| Element | Kev sib xyaw (%) |
|---|---|
| Carbon (C), max | 0.25 |
| Manganese (Mn) | 0.27-0.93 |
| Phosphorus (P), max | 0.035 |
| Sulfur (S), max | 0.035 |
| Silicon (Si) | Ntau dua lossis sib npaug li 0.10 |
| Tseem ceeb: | Ua los ntawm kev ua zoo grain |
Sib piv: A106 Qib A vs B vs C
| Parameter | Qib A | Qib B | Qib C |
|---|---|---|---|
| Min Yield zog | 30,000 psi | 35,000 psi | 40,000 psi |
| Min Tensile zog | 48,000 psi | 60,000 psi | 70,000 psi |
| Cov pa roj carbon, max | 0.25% | 0.30% | 0.35% |
| Manganese Ntau | 0.27-0.93% | 0.29-1.06% | 0.29-1.06% |
| Kev Ua Lag Luam | ~10% | ~85% | ~5% |
| Kev siv yam | Tsawg-siab HT | Txheem HT | Siab -siab HT |
Daim ntawv thov
Haum rau Qib A:
Tsawg-cov kab hluav taws xob siab (<150 psi)
Cov cua kub cua sov tshuab
Tsawg- cov kab txheej txheem siab
Cov kav dej siv hluav taws xobhauv cov nroj tsuag muaj zog
Thaum tshav kub kub hloov kua system(siab nruab nrab)
Zoo dua siv Qib B:
Main chav kab (>150 psi)
Siab - txheej txheem piping
Cov kev pabcuam tseem ceeb
Thaum yav tom ntej siab nceua tau
Kev txwv kub
| Qhov xwm txheej | Qhov kub siab tshaj plaws |
|---|---|
| Kev Pabcuam General | Mus txog425℃(800℃F) |
| Extended Service | 425-540℃(800-1000℃F)nrog de- ntsuas |
| Tsis pom zoo | Saum toj no540℃(1000℃F) |
Nco tseg:Tib qhov kub muaj peev xwm zoo li Qib B & C, tab sis muaj peev xwm qis dua.
Kev tsim khoom & Kev kho cua sov
Kev Tsim Nyog:
Seamless nkaus xwb(tsis muaj kev xaiv welded)
Kev ua zoo lisyuav tsum tau
Tua hlau(silicon Ntau dua lossis sib npaug rau 0.10%)
Kev kho cua sov xaiv:
Kub-ua tiav (raws li - dov)
Li qub
Normalized thiab tempered
Annealed
Kev xeem yuav tsum tau
| Kuaj | Kev xav tau |
|---|---|
| Hydrostatic Test | Yuav tsum tau(min 1000 psi) |
| Tensile Test | Ib qho cua sov / ntau |
| Flattening Test | Rau qhov ntau thiab tsawg tsawg dua lossis sib npaug rau NPS 2 |
| Hardness Test | Xaiv tau |
| Kev kuaj tsis raug | Yeem xaiv (feem ntau teev) |
Hydrostatic Test Siab:
ntawv nyeem
P=2St/D lossis 1000 psi yam tsawg S=60% ntawm cov khoom muaj zog (18,000 psi rau Qib A)
Kev txiav txim siab tsim
Kev ntsuas siab (ASME B31.1 / B31.3):
ntawv nyeem
t = (P × D) / (2 × S × E + P × Y)
Tso cai sib piv (@ 400℃F):
Qib A:12,900 psi
Qib B:15,000 psi (16% siab dua)
Qib C:17,100 psi (33% siab dua)
Phab ntsa Thickness Impact:
ntawv nyeem
Rau tib lub siab & txoj kab uas hla: Qib A phab ntsa ≈ 1.16 × Qib B phab ntsa (16% thicker yuav tsum tau)
Kev xav txog nyiaj txiag
Kev Ntsuas Tus Nqi:
Khoom siv:5-10% qis dua Qib B
Installation nqi:Zoo ib yam li Qib B
Tag nrho cov nqi nruab:Tej zaum yuav siab dua vim cov phab ntsa tuab
Nqe lus piav qhia:Txwv rau qee yam tsawg- cov ntawv thov siab
Thaum Qib A Ua Kom Muaj Kev Nyuaj Siab:
Tsawg-siab tshuab (<100 psi)
Loj diametersqhov twg qhov hnyav txuag me me
Tshuag muajnyiam kawm qib A
Project specificationstshwj xeeb hu rau Qib A
Ordering Information
Standard Specification:
ntawv nyeem
ASTM A106 Qib A NPS [Size] Teem sijhawm [Wall] [Length: SRL/DRL/cut] [Ends: Plain/beveled/threaded] [Cov kev cai ntxiv yog tias muaj]
Piv txwv Orders:
A106 Gr.A, NPS 6 Sch 40, 20' RLM, Plain kawg
A106 Gr.A, NPS 12 STD, 40' DRL, Beveled kawg rau vuam
⚠️ Kev txwv & ceev faj
Tsis pom zoo rau:
Siab -siab zog (>150 psi)
Cov txheej txheem tseem ceeb ntawm cov kav dej
Cyclic/temperature fluctuationkev pabcuam
Yav tom ntej siab ncexav tau
Kev nyab xeeb- cov ntawv thov tseem ceeb
Common Misapplications:
Siv qhov twg Qib B yuav tsum tau teev tseg
Piv txwv tias tib lub siab ntsuas raws li Qib B
Tsis kho kev txhawb nqarau phab ntsa hnyav dua
Sib piv nrog A53 Qib B
| Parameter | A106 Qib A | A53 Qib B |
|---|---|---|
| Kev Pabcuam Kub | Siab -kub(rau 540 degree) | Txwv (~ 430℃max) |
| Yield zog | 30,000 psi | 35,000 psi |
| Chemistry Control | nruj(zoo lis, Si min) | Basic |
| Nqi | Siab dua | qis |
| Zoo tshaj rau | HT qis-siab | Lub hom phiaj dav dav |
Kev ua lag luam
Kev siv Statistics:
~10%ntawm tag nrho cov A106 yeeb nkab tsim
Txo kev sivraws li Qib B dhau los ua qhov qub
Feem ntaunyob rau hauv tej kev lag luam / cheeb tsam
Feem ntau teevnyob rau hauv legacy designs
Kev nyiam ntawm kev lag luam:
Cov nroj tsuag muaj zog:Tsis tshua muaj qib A
Refineries:Qee lub sij hawm rau cov khoom siv hluav taws xob tsawg - siab
Cov nroj tsuag tshuaj:Qee zaum rau cua sov tshuab
Cov kws pab tswv yim:Feem ntau qhia Qib B raws li qhov tsawg kawg nkaus
Quality & Certification
Yam yuav tsum tau muaj:
Mill Test Certificatenrog tshav kub traceability
Kev ua zoo lispov thawj
Tua hlauConfirmation (Si cov ntsiab lus)
Hydrostatic xeemcov ntaub ntawv
Common Certifications:
ASME SA106 Qib A:Rau kev tsim kho code
PED / CE cim:Rau cov lag luam European
Thib peb-kev soj ntsuam tog:Feem ntau xav tau kev pabcuam tseem ceeb
International sib npaug
| Thaj tsam | Standard sib npaug |
|---|---|
| ISO | TS EN ISO 3183 L245 |
| Teb chaws Europe | TS EN 10216-2 P235GH |
| Nyiv | JIS G3456 STPT370 |
| Tuam Tshoj | GB/T 8163 Qib 20 |
Yav tom ntej Outlook
trends:
Txo qhov tshwj xeebnyob rau hauv cov qauv tshiab
Qib B uade facto yam tsawg kawg nkaus
Tus nqi sib txawvnqaim nrog Qib B
Qee qhov tshwj xeebtshem tawm qhov kev xaiv qib A
Cov Lus Qhia Txog Kev Lag Luam:
Qhia qib Btshwj tsis yog tias Qib A yog qhov tseeb
Xav txog cov nqi ntawm lub neej(cov phab ntsa tuab dua=cov khoom siv ntxiv)
Ntsuas tag nrho cov nqi nruab, tsis yog tus nqi khoom siv xwb
Hauv cov ntsiab lus: ASTM A106 Qib A seamless yeeb nkabmuab siab -kub muaj peev xwm nrog qis zog dua qib B. Thaum nws ua tau raws li cov cai, nwstxwv tsis pub muaj peev xwm thiab txo qis kev lag luam sivua akev xaiv tshwj xeebtsis yog tus qauv. Rau ntau daim ntawv thov,Qib B muaj txiaj ntsig zoo duanrog tsawg tus nqi sib txawv thiab ntau dua tsim yooj. Cov kws ua haujlwm yuav tsum ua tib zoo tshuaj xyuas seb qhov kev txuag nqi me ntsis ntawm Qib A ua pov thawj nws qhov kev txwv tsis pub dhau.
