JIS G3101 SS400 Ob chav -Sided Submerged Arc Vuam (DSAW/LSAW) Hlau Yeeb Nkab
Lub ntsiab lus tseem ceeb
JIS G3101 SS400 DSAW (Ob -Sided Submerged Arc Vuam) steel yeeb nkabyog ib tug loj - txoj kab uas hla welded yeeb nkab tsim los ntawm carbon structural steel ua raws li cov Japanese Industrial StandardJIS G3101. Lub npe "SS400" qhia tias aTsawg tensile zog ntawm 400 MPa (58,000 psi), nrog yield zog ntawm kwv yees li245 MPa (35,500 psi)rau thicknesses Tsawg dua los yog sib npaug li 16 hli.
Cov txheej txheem DSAW-tseem hu ua LSAW (Longitudinal Submerged Arc Vuam)- yog qhov siab - vuam txoj kev ncaj ncees uas siv ob sab hauv thiab sab nraud welds, tsim ib qhoib leeg siab -zoo weld nugget. Cov txheej txheem no yog tsim tshwj xeeb rauloj- txoj kab uas hla, tuab- phab ntsa kavsiv nyob rau hauv cov txheej txheem, piling, thiab qis - cov ntaub ntawv siv dej siab .
Lub npe piav qhia
| Ib feem | Lub ntsiab lus |
|---|---|
| JIS | Japanese Industrial Standards |
| G3101 | Txheem rau "Rolled Steels rau General Structure" |
| TSI 400 | Qib qib: "SS"=Cov Qauv Hlau, "400"=lub zog tensile yam tsawg kawg nkaus (MPa) |
| DSAW/LSAW | Ob chav -Sided/Longitudinal Submerged Arc Vuam - cov yeeb nkab tsim los ntawm steel phaj thiab welded longitudinally ntawm ob sab hauv thiab sab nrauv |
Ntsiab Specifications
| Yam ntxwv | Kev piav qhia |
|---|---|
| Khoom Txheem | JIS G3101 - Rolled Steels rau General Structure |
| Qib Steel | SS400 - Tsawg tensile zog 400 MPa |
| Kev tsim khoom | DSAW (Ob chav -Sided Submerged Arc Vuam) / LSAW (Longitudinal Submerged Arc Vuam) |
| Txoj kev tsim | JCOE(progressive J-C-O forming) los yogUAE(U-ing, O-ing, Expanding) |
| Qhov Loj | 219mm txog 1625mm(8 "mus rau 64") OD - raug rau LSAW; mus txog 3048 mm muaj |
| Phab ntsa Thickness | 6.35mm txog 60mm (txog 120mm rau kev siv tshwj xeeb) |
| Ntev | 3 m txog 18 m txheem; mus txog 32 m muaj |
| Xaus Xaus | Plain xaus, beveled xaus (30℃bevel kaum), threaded |
| Txheej txheej xaiv | Dub xim, kua roj vanish, anti- xeb roj, galvanized, FBE, 3LPE |
Tshuaj muaj pes tsawg leeg (JIS G3101 SS400)
| Element | Ntau tshaj % | Sau ntawv |
|---|---|---|
| Cov pa roj carbon (C) | 0.16-0.25% (tus qauv) | Tsawg carbon rau zoo weldability |
| Manganese (Mn) | 1.40% max | Muab lub zog |
| Silicon (Si) | 0.35% max | Deoxidizer |
| Phosphorus (P) | 0.050% max | Tswj rau weldability |
| Sulfur (S) | 0.050% max | Tswj kom toughness |
| Copper (Cu) | 0.20% min (thaum teev) | Txhim kho corrosion kuj |
Faj seeb: JIS G3101 tsis qhia txog qhov yuav tsum tau txwv rau carbon thiab manganese. Cov txiaj ntsig tau pom yog ib txwm los ntawm cov ntaub ntawv tsim khoom. Lwm yam alloying ntsiab yuav raug ntxiv raws li qhov tsim nyog.
Mechanical Properties (JIS G3101 SS400)
Yield zog (min)
| Thickness (hli) | Yield zog (MPa) |
|---|---|
| Tsawg dua los yog sib npaug li 16 | 245(Ntau dua lossis sib npaug) |
16 | 235 |
|
40 | 215 |
|
| > 100 | 205 |
Tensile zog
| Khoom | Tus nqi |
|---|---|
| Tensile zog (min) | 400 MPa |
| Tensile Strength Range | 400-510 MPa |
Lwm yam khoom
| Khoom | Tus nqi |
|---|---|
| Elongation (min) | 17-21% (nyob ntawm thickness) |
| Hardness | 150-180 HB yam |
| Kev ntsuam xyuas cuam tshuam | Tsis xav tau los ntawm JIS G3101 |
SS400 Qib Sib piv nrog International Equivalents
| Txuj | Qib sib npaug | Sau ntawv |
|---|---|---|
| JIS G3101 | TSI 400 | Tus qauv qub |
| GB/T 700 | Q235B | Feem ntau ncaj qha suav sib npaug |
| ASTM | A36 | yield ntau dua (250 MPa) |
| TS EN 10025 | S235 JR | Cov khoom zoo sib xws |
| TIAB SA 17100 | TSI 37-2 | Keeb kwm German sib npaug |
Qhov txawv ntawm SS400 thiab Q235B :
SS400 muaj zog tensile zog qis dua (400 MPa vs . 370 MPa)
SS400 tso cai rau dav manganese sab sauv txwv (1.40% vs . 1.40% zoo sib xws)
SS400 muaj phosphorus / sulfur ntau dua me ntsis (0.050% vs. 0.045%)
Dimensional Specifications
| Parameter | Ntau Yam / Tolerance |
|---|---|
| Sab nraud txoj kab uas hla | 219mm txog 1625mm(8 "mus rau 64") - LSAW ntau yam; mus txog 3048 mm muaj |
| Phab ntsa Thickness | 6.35mm txog 60mm (txog 120mm rau kev siv tshwj xeeb) |
| Txoj kab uas hla Tolerance | ± 0.75% ntawm OD (tseem ceeb) |
| Phab ntsa Thickness kam rau ua | +15% / -12.5% ntawm nominal (tus qauv) |
| Ntev | 3 m txog 18 m txheem; mus txog 32 m muaj |
| Tawm ntawm - ntawm - Roundness | Tsawg dua lossis sib npaug li 1% ntawm OD teev |
Yam Loj Muaj (SS400):
| OD (inch) | OD (mm) | Phab ntsa Thickness Range (mm) |
|---|---|---|
| 16" | 406 | 6.0 - 14.0 |
| 20" | 508 | 6.0 - 16.0 |
| 24" | 610 | 6.0 - 18.0 |
| 30" | 762 | 7.0 - 21.0 |
| 36" | 914 | 8.0 - 24.0 |
| 40" | 1016 | 8.0 - 26.0 |
| 48" | 1219 | 9.0 - 28.0 |
| 56" | 1422 | 10.0 - 29.0 |
| 60" | 1524 | 10.0 - 29.0 |
| 64" | 1626 | 10.0 - 30.0 |
DSAW/LSAW Manufacturing Process
Ob chav -Sided Submerged Arc Vuam (DSAW), tseem hu ua Longitudinal Submerged Arc Vuam (LSAW), yog ib qho kev ua haujlwm siab - siv feem ntau rau cov kav loj - txoj kab uas hla.
Txheej txheem piav qhia
Vuam arc yog submerged hauv granular fluxThaum vuam, tiv thaiv cov vuam los ntawm atmospheric paug
Ob sab hauv thiab sab nraud welds yuav tsum tau, feem ntau ua tiav hauv cov txheej txheem sib cais
Cov sib cais welds noj ib feem ntawm lwm yam, ua rau aib leeg siab -zoo weld nugget
Txoj kev tsim
| Txoj kev | Kev piav qhia | Hom kab |
|---|---|---|
| JCOE | Progressive J-C-O cov kauj ruam (J-shape → C-shape → O-shape), nthuav dav tom qab vuam | 406-1626 hli (16 "-64") |
| UAE | Phaj nias rau hauv U-puab, ces O-puab, nthuav dav tom qab vuam | 508-1118 hli (20 "-44") |
Txheej txheem txheej txheem
Phaj xaiv- Hlau daim hlau ua tau raws li JIS G3101 SS400 yuav tsum
Ntug Kev Npaj- Ntug yog beveled los tsim V-puab zawj
tsim- Cov ntawv hlau yog tsim rau hauv cov duab cylindrical siv JCOE lossis UOE presses
Tack Vuam- Cov phaj tsim yog tack-welded kom zoo li qub
Ob chav Submerged Arc Vuam- Cov yeeb nkab seam welded rau ob sab hauv thiab sab nrauv
Txias Expansion- Cov yeeb nkab yuav raug nthuav mus txog 1.5% kom ua tiav qhov kawg ntawm OD
Ultrasonic soj ntsuam- Seam tshuaj xyuas los ntawm kev txuas ntxiv ultrasonic tsis siv neeg qhov tsis pom kev
Hydrostatic Pressure Test- Txhua lub yeeb nkab tau kuaj xyuas hydrostatic siab (yog tias tau teev tseg)
Ua tiav- Xaus kev, beveling, txheej, thiab kos npe raws li specifications
Kev Ntsuas & Kev Ntsuam Xyuas Cov Cai
| Hom kev xeem | Kev xav tau | Sau ntawv |
|---|---|---|
| Tshuaj ntsuam xyuas | Rau qhov kub ntau | Txheeb xyuas qhov txwv tsis pub muaj nyob hauv JIS G3101 |
| Tensile Test | Rau ntau | Txheeb xyuas qhov tawm los thiab lub zog tensile |
| Flattening Test | Yuav tsum tau | Txheeb xyuas qhov ductility thiab weld kev ncaj ncees |
| Khoov Test | Yuav tsum tau | Verifies weld kev ncaj ncees |
| Charpy Impact Test | Tsis xav tau los ntawm JIS G3101 | Tej zaum yuav raug teev rau SM qib |
| Hydrostatic Test | Raws li qhov project / tus qauv | Kev ntsuas siab ncaj ncees |
| Ultrasonic soj ntsuam | 100% ntawm weld seam | Nruam tsis siv neeg qhov tsis pom kev |
| X-Ray Inspection | Rau "T" pob qij txha | Qhov twg strip taub qab welds cuam tshuam kauv seams |
| Dimensional soj ntsuam | 100% | Raws li tus qauv tolerances |
| Mill Test Certificate | EN 10204 Hom 3.1B | Muab tag nrho cov kev xeem |
Cov ntawv thov siv
| Daim ntawv thov | Kev piav qhia |
|---|---|
| Kev tsim vaj tsev | Beams, kem, pem teb slabs, ntaiv hauv factories, tsev nyob, thiab cov tsev lag luam |
| Bridge Engineering | Choj railings, choj piers, choj decks rau nruab nrab thiab me - ncua choj |
| Piling Foundations | Load-cov kabmob rau cov tsev thiab cov hauv paus tob |
| Infrastructure Projects | Qhov kev txhawb nqa, khaws cov phab ntsa, cov qauv kev loj |
| Mechanical Manufacturing | Lub teeb machinery puag, bearing kev txhawb nqa, gearbox vaj tse, kev ua liaj ua teb machinery brackets |
| Kev thauj mus los | Lub tsheb chassis, thav duab, tsheb lub cev vaj huam sib luag, tsis yog - cov khoom tseem ceeb ntawm nkoj |
| Lwm yam teb | Lub zog xa hluav taws xob ntauwd, kev sib txuas lus yees, scaffolding, yeeb nkab txhawb nqa, hauv nroog guardrails |
Cov Qauv Khoom Siv rau Cov Yeeb Nkab DSAW tiav
Txij li JIS G3101 txhais covqib khoom siv, cov khoom tiav DSAW yeeb nkab feem ntau yog tsim los rau cov qauv khoom ntxiv:
| Khoom Txheem | Daim ntawv thov | Sau ntawv |
|---|---|---|
| JIS G3444 | Cov pa roj carbon steel kav rau kev ua haujlwm dav dav | Qhia meej qhov ntev kam rau ua, hydrostatic test siab |
| Project Specification | Loj - txoj kab uas hla kev cai kav (penstocks, pawg) | Hu ncaj qha rau JIS G3101 SS400 phaj |
| TS EN 10219 | Txias- tsim cov qauv hollow seem | European txheem sib npaug |
| ASTM A53 | Kev pabcuam dav dav | American standard sib npaug |
Qhov Zoo Tshaj Plaws
| Qhov zoo | Kev piav qhia |
|---|---|
| Weldability zoo heev | Cov ntsiab lus carbon tsawg (tsawg dua lossis sib npaug li 0.25%) ua kom muaj kev sib tw zoo |
| Zoo Formability | Haum rau txias khoov, flanging, thiab shaping yam tsis muaj cracking |
| Tus nqi -Cov | Kev xaiv nyiaj txiag feem ntau rau kev siv cov qauv siv dav dav |
| Loj Loj Muaj peev xwm | DSAW tsim cov kav dej ntawm 8 "mus rau 64" OD - zoo tagnrho rau cov ntawv loj - txoj kab uas hla |
| High Weld Integrity | Muab ob npaug rau- sab vuam tsim ib qho siab - zoo weld nugget nrog 100% UT tshuaj xyuas |
| Dav Muaj | Feem ntau stocked los ntawm manufacturers thoob ntiaj teb |
| Ntiaj teb no lees paub | Sib npaug rau Q235B, A36, thiab S235JR - tau txais thoob ntiaj teb |
| Cov khoom sib npaug | Kev sib xyaw ua ke zoo ntawm lub zog, ductility, thiab weldability rau kev siv cov qauv siv |
Kev txiav txim siab tseem ceeb
1. SS400 vs. Qib siab dua
JIS G3101 suav nrog ntau qib:
| Qib | Tensile zog (MPa) | Yield zog (tsawg dua lossis sib npaug li 16mm) | Daim ntawv thov |
|---|---|---|---|
| SIB 330 | 330-430 | Ntau dua lossis sib npaug rau 205 | Lub teeb qauv, dav siv |
| TSI 400 | 400-510 | Ntau dua lossis sib npaug li 245 | Feem ntau - general structural |
| SIB 490 | 490-610 | Ntau dua lossis sib npaug li 285 | Hnyav-cov haujlwm ua haujlwm |
| SIB 540 | Ntau dua lossis sib npaug li 540 | Ntau dua lossis sib npaug li 400 | Siab - cov ntawv thov muaj zog |
2. Yield zog tsis tau lees paub los ntawm tus qauv
JIS G3101 tsis qhia qhov yuav tsum tau muaj zog tawm los rau SS400. Cov txiaj ntsig tawm los (Ntau dua lossis sib npaug rau 245 MPa rau Tsawg dua lossis sib npaug rau 16mm) yog muab raws li cov txiaj ntsig siv. Cov neeg tsim khoom feem ntau muab rau cov nqi siv no.
3. SM Qib rau siab dua Toughness
Rau daim ntawv thov yuav tsum tau guaranteed cuam tshuam toughness, qhia meejSIB 400qib es tsis txhob:
SWB 400B27j:0 qib
SM 400 C: 27 J ntawm 0℃(txhim kho toughness)
SIB 400series kuj qhia txog qhov tsawg kawg nkaus tawm lub zog (245 MPa)
4. Kev sim cuam tshuam
JIS G3101 SS400 uatsis yogxav tau Charpy qhov kev ntsuam xyuas los ntawm tus qauv. Rau cov ntawv thov uas xav tau qis -kub toughness, qhia SM400 qib.
5. Kev txwv kub
Qhov siab tshaj plaws qhov kev pab cuam qhov kub thiab txias:350℃(662℃F)
luv-lub sij hawm raug mus txog 450℃ua tau
Tsis muaj kev lees paub qis -kub toughness- tsis haum rau sub-zero daim ntawv thov yam tsis muaj kev ntsuas
6. Kev tiv thaiv corrosion
SS400 muaj qee qhov kev tiv thaiv corrosion. Rau cov ntawv faus lossis nthuav tawm, qhia cov txheej txheem tiv thaiv:
3LPE (3-txheej polyethylene)- rau faus pipelines
FBE (Fusion Bonded Epoxy)- rau roj & roj pipelines
Kub-dip galvanized- rau kev siv sab nraum zoov
Varnish / Anti- xeb roj- kev tiv thaiv ib ntus
7. Kev siv siab
SS400 feem ntau yog tsim los raukev siv cov qauv, tsis siab -kua kua kis tau tus mob. Rau cov ntawv thov siab, qib API 5L raug pom zoo.
8. Thib peb-Kev soj ntsuam tog
Muaj cov kev pabcuam tshuaj xyuas suav nrog SGS, BV, Lloyds
9. Weldability
Cov ntsiab lus qis carbon ua kom zoo weldability
Haum rau txhua txoj kev vuam txheej txheem (SMAW, GTAW, GMAW, SAW)
Tsis muaj kev tshaj tawm -weld cua sov yuav tsum tau kho rau feem ntau thicknesses
Preheat: 100-150℃pom zoo rau cov ntu tuab
Cov ntsiab lus
JIS G3101 SS400 Ob chav -Sided Submerged Arc Welded (DSAW/LSAW) steel yeeb nkabyog qhov loj tshaj plaws -inch structural steel yeeb nkab uas tsim los rau Japanese Industrial Standards. Nrog yam tsawg kawg nkaus tensile lub zog ntawm400 MPa (58,000 psi), tawm lub zog ntawm kwv yees li245 MPa (35,500 psi)rau thicknesses tsawg dua los yog sib npaug rau 16 hli, thiab weldability zoo heev, cov khoom no yog tus qauv kev xaiv rau cov qauv siv thoob ntiaj teb.
Cov yam ntxwv tseem ceeb:
Khoom txheemJIS G3101 SS400 - Japanese Industrial Standard rau cov qauv steel
Tensile zog: 400-510 MPa - txhais lub npe SS400
Yield zog (reference): Ntau tshaj los yog sib npaug rau 245 MPa rau thickness Tsawg dua los yog sib npaug rau 16 hli
Thoob ntiaj teb lees paub qhov sib npaugQ235B (Tuam Tshoj), A36 (USA), S235JR (Europe), ST37-2 (Lub Tebchaws Yelemees)
DSAW/LSAW manufacturingtsim cov kav dej los ntawm8" rau 64" ODnrog phab ntsa thickness mus txog60 mm
Ob -sab vuamtsim ib lub siab -zoo weld nugget
JCOE los yog UOE tsimcov txheej txheem kom paub meej qhov tseeb qhov tseeb
100% ultrasonic kuajntawm weld seam kom zoo
Weldability zoo heevthiab zoo formability
Kev xaiv nyiaj txiag tshaj plawsrau kev siv cov qauv siv dav dav
Cov ntawv thov uas muaj xws li:
Kev tsim vaj tsev (kab kab, kab, ncej)
Choj engineering (piers, railings, decks)
Piling foundations thiab infrastructure tej yaam num
Mechanical manufacturing thiab kev thauj mus los
Fais fab kis yees thiab scaffolding
Thaum ordering, qhia:JIS G3101, Qib SS400, DSAW/LSAW (Ob chav-Sided/Longitudinal Submerged Arc Welded), Loj (OD x WT), Ntev, Qhov Kawg Finish (plain/beveled), Cov Txheej Txheem Txheej Txheem, thiab Daim Ntawv Pov Thawj Zeb rau EN 10204 Hom .3.
Rau daim ntawv thov yuav tsum tau guaranteed cuam tshuam toughness, qhia meejSWB 400B(0 degree) los yogSM 400 Cxwb. Rau siab - kev siv cov qauv siv, xav txogSIB 490los yogSIB 540qib.
