GB / T 8162-2008 Seamless Carbon Steel Yeeb Nkab
GB/T 8162-2008yog covSuav teb tus qauvrau seamless carbon steel kav siv nyob rau hauvgeneral lug thiab mechanical qhov chaw. Nws yog ib qho ntawm feem ntau siv seamless yeeb nkab qauv hauv Suav teb.
Cov yam ntxwv tseem ceeb
| Feature | Kev piav qhia |
|---|---|
| Txuj | Suav National Standard(GuoBiao/Tui) |
| Daim ntawv thov | General structural, mechanical qhov chaw |
| Khoom siv | Cov pa roj carbon steel(10, 20, 35, 45 qib feem ntau) |
| Ntsiab Lus | Tsis yog rau kev siv dej siab |
Common Steel Qib
| Qib | Zoo ib yam li | Cov ntsiab lus carbon (%) | Kev siv yam |
|---|---|---|---|
| 10 | 1010 | 0.07-0.13 | Tsawg zog, zoo formability |
| 20 | 1020 | 0.17-0.23 | Qib feem ntau, lub hom phiaj dav dav |
| 35 | 1035 | 0.32-0.39 | Lub zog nruab nrab |
| 45 | 1045 | 0.42-0.50 | Siab zog, machinable |
| Q345 | - | Tsawg alloy | Lub zog siab dua li carbon steels |
Chemical Composition (Piv txwv: Qib 20)
| Element | Kev sib xyaw (%) |
|---|---|
| Cov pa roj carbon (C) | 0.17-0.23 |
| Silicon (Si) | 0.17-0.37 |
| Manganese (Mn) | 0.35-0.65 |
| Phosphorus (P), max | 0.035 |
| Sulfur (S), max | 0.035 |
Mechanical Properties
| Qib | Yield zog (MPa) | Tensile zog (MPa) | Elongation (%) |
|---|---|---|---|
| 10 | Ntau dua lossis sib npaug rau 335 | 335-475 | Ntau dua lossis sib npaug li 24 |
| 20 | Ntau dua lossis sib npaug li 245 | 410-550 | Ntau dua lossis sib npaug li 20 |
| 35 | Ntau dua lossis sib npaug rau 315 | 530-685 | Ntau dua lossis sib npaug li 17 |
| 45 | Ntau dua lossis sib npaug rau 355 | 590-735 | Ntau dua lossis sib npaug li 14 |
| Q345 | Ntau dua lossis sib npaug rau 345 | 470-630 | Ntau dua lossis sib npaug li 21 |
Kev tsim khoom
Txoj kev tsim khoom:
Kub- dov seamless(feem ntau)
Txias-kos seamless(zoo dua nto, tighter kam rau ua)
Kev kho cua sov:
Kub- dov:Feem ntau yog - dov
Txias- tau kos:Feem ntau annealed los yog kev ntxhov siab -relieved
Yeem:Normalizing, quenching & tempering rau cov kev cai tshwj xeeb
Kev xeem yuav tsum tau
| Kuaj | Kev xav tau | Sau ntawv |
|---|---|---|
| Tensile Test | Rau batch | Txheeb xyuas cov khoom siv kho tshuab |
| Hydrostatic Test | Xaiv tau(tsis tas yuav tsum tau) | Tsuas yog tias tau teev tseg |
| Flattening Test | Rau me me diameters | Tshawb xyuas ductility |
| Flaring Test | Rau qee qhov kev siv | Formability check |
| Hardness Test | Xaiv tau | Rau kev txheeb xyuas cov khoom |
⚠️ Qhov txawv ntawm qhov tseem ceeb
GB/T 8162 vs GB/T 8163:
| Txuj | Lub hom phiaj | Kev Pabcuam Siab |
|---|---|---|
| GB/T 8162 | Qauv, mechanical | TSIS rau siab |
| GB/T 8163 | Kev thauj kua | Rau kev pabcuam siab |
Tseem ceeb:Siv 8162 kav dej rau lub tshuab siab yogtxaus ntshai thiab txhaum cainyob rau hauv ntau txoj cai.
Daim ntawv thov
Kev siv tus qauv:
Kev tsim vaj tsev(columns, kab)
Scaffoldingthiabtxhawb nqa
Cov cuab yeej siv tshuabncej
Tshebthiabtshebntu
Mechanical Parts:
Ncejthiabaxles
Rollersthiablub tog raj kheej
Cov kab mob
Gear blanks
General Engineering:
Conveyor systemcov khoom
Agricultural tshuabntu
Toolingthiabkhoom siv
Qauvkev loj hlob
Dimensional Specifications
Qhov Loj Loj:
| Parameter | Ntau yam |
|---|---|
| Sab nraud txoj kab uas hla | 6-630 hli |
| Phab ntsa Thickness | 0.25-75 hli |
| Ntev | 3000-12500 mm feem ntau |
Tolerances:
OD kam rau ua:± 1.0% feem ntau
Phab ntsa kam rau ua:± 12.5% feem ntau
Tshwj xeeb precisionqib muaj
Kev sib piv nrog International Standards
| Txuj | Zoo ib yam li GB/T 8162 | Qhov txawv tseem ceeb |
|---|---|---|
| ASTM A53 | Ib feem zoo sib xws | A53 yog rau siab |
| ASTM A519 Cov Lus Qhia Tshwj Xeeb | Lub hom phiaj zoo sib xws | A519 muaj nruj dua kam rau ua |
| TIAB SA 1629 | Zoo sib xws heev | Tib lub hom phiaj |
| JIS G3445 | Zoo sib xws | Japanese sib npaug |
Ordering Information
Hom Npe:
ntawv nyeem
GB/T 8162-2008 - Qib - Dimensions Piv txwv: GB/T 8162-2008 20 89 × 4.5
Yuav tsum Specifications:
Txheem:GB/T 8162-2008
Qib steel: 10, 20, 35, 45, Q345
Qhov Loj:OD × Phab ntsa × Length
Txoj kev tsim khoom:Kub- dov los yog txias- kos
Delivery condition:Raws li - dov, normalized, thiab lwm yam.
Cov cai tshwj xeeb:Kev kuaj, kos npe, thiab lwm yam.
Kev Tswj Xyuas Zoo
Cov qib ntawv pov thawj:
Tsis muaj ntawv pov thawj:Kev xa khoom yooj yim
Factory daim ntawv pov thawj:Cov neeg tsim khoom tshaj tawm
Thib peb-kev soj ntsuam tog:Kev pov thawj ywj pheej
Common Defects los xyuas:
Qhov defects:Kov, folds, nti
Dimensional sib txawv:Tawm - ntawm - kam rau ua
Khoov:Tshaj curvature
Ovality:Tsis yog- ncig hla-section
Kev ua lag luam nyob hauv Suav teb
Kev siv Statistics:
~40%ntawm Tuam Tshoj txoj seamless yeeb nkab ntau lawm
Feem ntau exportedSuav seamless yeeb nkab txheem
Kev xaiv thawj zaugrau structural applications
Feem ntau to taub yuam kevraws li lub cev muaj zog
Nqe Factors:
Qib 20yog tus nqi siv
Kub- dovpheej yig dua li txias - kos
Kev txo nqi kom muaj nuj nqistseem ceeb
Export vs domestictxawv tus nqi
Common Misapplications
❌ Kev siv tsis raug (Kev phom sij):
Boiler raj(siv GB 5310 hloov)
Cov kav dej(siv GB/T 8163 hloov)
Gas pipelines(siv GB/T 9711 hloov)
High -siab tshuab(siv cov qauv tshwj xeeb)
✅ Kev siv kom raug:
Mechanical shaftsthiabaxles
Cov qauv kev txhawb nqathiabncej
Rollersrau conveyors
General engineeringcov khoom
Kev tsim kho kev lag luam
Kev txhim kho tsis ntev los no:
Dimensional raugkev txhim kho
Nto zookev txhim kho
Cov qib tshiabzoo li Q345 ntxiv
Cov txheej txheem kuajkho tshiab
Yav tom ntej Trends:
Hloovlos ntawm cov qauv tshwj xeeb dua
Kev kho kom zoo dua qubmus rau theem thoob ntiaj teb
Ib puag ncigcov kev cai ntau lawm
Digital traceabilitykev siv
Hloov kho cov qauv sib npaug
Nco tseg:GB/T 8162-2008 tauhloov los ntawm GB / T 8162-2018nrog kev kho me me:
Ntxiv ntau qib steel
Hloov kho cov kev cai xeem
Txhim kho kev kam rau siab specifications
Txhim kho cov ntaub ntawv xav tau
Export Kev txiav txim siab
Rau International Buyers:
Txheeb xyuas qhov xav tau sivphim tus qauv txheem
Thov daim ntawv pov thawj zebhauv lus Askiv
Xav txog kev soj ntsuam thib peb - tograu kev ruaj ntseg zoo
Tshawb xyuas tshuaj ntsuam xyuastiv thaiv kev txiav txim
Nkag siab qhov sib txawv ntawm qhov kam rau uavs lwm tus qauv
Hauv cov ntsiab lus:GB/T 8162-2008 yogthawj Suav tus qauv rau cov qauv seamless carbon steel kav, dav siv rau kev siv tshuab thiab cov txheej txheem. Thaum kev lag luam thiab yooj yim muaj, nws yogtseem ceeb heev kom nkag siabtias yogTSIS tsim lossis sim rau kev pabcuam siab-kev sib txawv uas tau ua rau muaj kev sib tsoo loj heev thaum nkag siab yuam kev.
