JIS G3454 Carbon Steel Seamless Pipes rau Kev Pabcuam Siab
Txheej txheem cej luam
JIS G3454yog Japanese Industrial Standard raucarbon steel seamless kav npaj rau kev pabcuam siabnyob rau hauv dav siv xws li conveying chav, dej, roj, roj, thiab huab cua. Nws yog Nyij Pooj sib npaug rau ASTM A106 thiab tau siv dav hauv kev lag luam Esxias thiab Nyij Pooj- tsim cov nroj tsuag.
Steel Qib & Cov Qauv
JIS G3454 qhia plaub qib raws li lub zog tensile:
| Qib Qib | Yam tsawg kawg Tensile Strength (MPa) | Sib piv ASTM Qib | Daim ntawv thov |
|---|---|---|---|
| TIAB SA 370 | 370 MPa rau | A53 gr. A / A106 Gr. A | Tsawg mus rau nruab nrab siab, kev pabcuam dav dav |
| TIAB SA 410 | 410 MPa | A53 gr. B / A106 Gr. B | Qib feem ntau, kev pabcuam siab |
| TIAB SA 480 | 480 MPa rau | - | Kev siv zog ntau dua |
| TIAB SA 410 | 410 MPa | A179 / A214 | Boiler thiab kub exchanger raj (nyob rau hauv me me diameters) |
Nomenclature:
STP: Seamless Tube rau lub hom phiaj siab
G: Denotes carbon steel (los ntawm "Carbon" hauv Japanese)
Tus lej: Yam tsawg kawg tensile zog hauv MPa
STB: Seamless Tube rau Boilers
Mechanical Properties
| Qib | Tensile zog (MPa) | Yield zog (MPa) Min | Elongation (%) Min |
|---|---|---|---|
| TIAB SA 370 | Ntau dua lossis sib npaug rau 370 | 215 | 30 |
| TIAB SA 410 | Ntau dua lossis sib npaug rau 410 | 245 | 25 |
| TIAB SA 480 | Ntau dua lossis sib npaug rau 480 | 275 | 20 |
| TIAB SA 410 | Ntau dua lossis sib npaug rau 410 | 245 | 25 |
Lus Cim: Lub zog tawm los yog txhais tau tias yog Upper Yield Point (ReH) lossis 0.2% Pov Thawj Stress (Rp0.2).
Chemical Composition (Maximum%)
| Qib | C | Si | Mn | P | S |
|---|---|---|---|---|---|
| TIAB SA 370 | 0.25 | 0.35 | 0.60 | 0.035 | 0.035 |
| TIAB SA 410 | 0.30 | 0.35 | 0.60 | 0.035 | 0.035 |
| TIAB SA 480 | 0.30 | 0.35 | 0.60 | 0.035 | 0.035 |
| TIAB SA 410 | 0.30 | 0.35 | 0.60 | 0.035 | 0.035 |
* Ceeb toom: Txhua qib yog tua hlau. Manganese cov ntsiab lus tuaj yeem nce mus rau 0.90% rau STPG 410/480 los ntawm kev pom zoo.*
Kev tsim khoom
Seamless yeeb nkab ntau lawm:
Khoom siv:Hlau ua los ntawm qhib hearth, hluav taws xob rauv, lossis cov txheej txheem oxygen yooj yim
Piercing:Feem ntau ntawm covMannesmann plug zeb txheej txheemlos yogextrusion
Kub Rolling:Cov kav dej kub -ua tiav rau qhov loj me
Kev kho cua sov:Feem ntau muab raws likub-ua tiav (raws li - dov). Annealing, normalizing, los yog tempering yuav siv tau yog tias tau teev tseg.
Ua tiav:Ncaj, txiav, ntsuas hydrostatic, thiab tshuaj xyuas.
Qhov Loj Loj:
Sab nraud txoj kab uas hla:6.0mm txog 900mm (≈ 1/4 "mus rau 36")
Phab ntsa Thickness:0.8mm txog 50mm
Ntev:Feem ntau 4-7m random ntev; ntev ntev muaj
Kev Ntsuas & Kev Ntsuam Xyuas Cov Cai
| Kuaj | Standard Reference (JIS) | Kev xav tau |
|---|---|---|
| Tensile Test | TIAB SA 2241 | Ib qho kev sim rau qhov kub. Transverse specimens tuaj yeem siv rau cov kab me me. |
| Flattening Test | TIAB SA 2248 | Rau cov kav dej nrog OD Tsawg dua lossis sib npaug ntawm 50 hli thiab phab ntsa <10% ntawm OD. Flatten rau qhov kev ncua deb yam tsis muaj cracking. |
| Hardness Test | JIS Z 2245 (Brinell) | Yeem xaiv, los ntawm kev pom zoo. |
| Hydrostatic Test | JIS G 3454 Tshooj 8 | Yuav tsum tau rau txhua lub kav dej.Kev ntsuas siab suav los ntawm cov qauv lossis yam tsawg kawg 5 MPa (725 psi), tuav Ntau dua lossis sib npaug rau 10 vib nas this. |
| Tsis yog -Kev kuaj kev puas tsuaj | (Eddy Tam sim no, Ultrasonic) | Tej zaum yuav siv tau raws li kev pom zoo tsis yog kev sim hydrostatic. |
| Visual & Dimensional | TIAB SA 3454 | Deg tsis xws luag, OD, phab ntsa thickness, ncaj. |
Hydrostatic Test Pressure Formula:
P=2×S×tDP=D2×S×t
Qhov twg:
P=Kev ntsuas siab (MPa)
S=Tso cai rau kev ntxhov siab (80% ntawm min yield zog, MPa)
t=Phab ntsa thickness (mm)
D=Sab nraud txoj kab uas hla (mm)
Dimensional Tolerances (Per JIS G 3454)
| Dimension | Ua siab ntev |
|---|---|
| Sab nraud txoj kab uas hla (OD) | Rau OD Tsawg dua lossis sib npaug li 50 hli: ± 0.5 hli OD> 50 hli: ± 1.0% ntawm OD |
| Phab ntsa Thickness | +12.5%, -10% ntawm nominal phab ntsa |
| Ntev | Rau qhov ntev: +10 mm, -0 mm |
| Kev ncaj | Tsawg dua lossis sib npaug li 0.2% ntawm tag nrho qhov ntev |
| Qhov hnyav | ± 10% ntawm theoretical qhov hnyav rau ib leeg |
Kev kho cua sov
| Cim | Kev kho cua sov |
|---|---|
| - | Raws li - dov (kub tiav) |
| A | Annealed |
| N | Li qub |
| Q | Quenched thiab Tempered |
| SR | Kev ntxhov siab |
* Piv txwv: STPG 410-N qhia txog qib 410 cov yeeb nkab.*
Daim ntawv thov
Primary Industries:
Kev tsim hluav taws xob:Boiler feedwater, auxiliary chav kab
Petrochemical thiab Refining:Cov txheej txheem piping, kab siv hluav taws xob
Shipbuilding:Marine boiler systems, machinery piping
Cov nroj tsuag muaj:Compressed cua, chav dej, kev pabcuam dej
Kev tsim kho:Cov kav dej hauv tsev (HVAC, kav dej hauv qee thaj tsam)
Kev Pabcuam Dej:
Chav (saturated thiab superheated)
Kub thiab dej txias
Compressed cua thiab gases
Hydraulic kua
Cov khoom siv roj thiab roj av (tsis yog-corrosive)
Kev sib piv nrog Cov Qauv Tseem Ceeb International
| Parameter | JIS G3454 STPG 410 | ASTM A106 Qib B | DIN 17175 St 35.8 |
|---|---|---|---|
| Tensile Min (MPa) | 410 | 415 | 360-480 |
| Yield Min (MPa) | 245 | 240 | 235 |
| Carbon Max (%) | 0.30 | 0.30 | 0.17 |
| Manganese Max (%) | 0.60 (0.90 los ntawm kev pom zoo) | 1.06 | 0.40-1.20 |
| Hydrostatic Test | Yuav tsum tau | Yuav tsum tau (los yog NDT) | Yuav tsum tau |
| Qhov Loj Loj | Txog li 900 mm OD | Mus txog 660 mm OD | Mus txog 323.9 mm OD |
Qhov zoo & yam ntxwv
Quality Consistency:Japanese mills paub txog kev tswj cov txheej txheem nruj
Nto tiav:Feem ntau zoo heev nrog cov nplai me me
Dimensional raug:Zoo phab ntsa thickness uniformity
Kev lees txais dav dav:Kev lees paub dav dav hauv cov haujlwm Asian thiab thoob ntiaj teb
Tus nqi sib tw:Feem ntau tus nqi sib tw vs. ASTM qhov sib npaug hauv cov lag luam Esxias
Kev txwv & kev txiav txim siab
Limited Kev lees paub thoob ntiaj teb:Sab nraum Asia, ASTM / ASME cov qauv feem ntau nyiam
Welding Considerations:Tej zaum yuav xav tau cov hlau sib txawv dua li ASTM sib npaug
Kev Ua Raws Cai:Tej zaum yuav xav tau kev pom zoo ntxiv rau ASME cov haujlwm code
Muaj:Tsawg npaj tau nyob rau hauv Western lag luam
Cov ntaub ntawv:Mill daim ntawv pov thawj yuav xav tau kev txhais lus / txhais lus
Cov ntaub ntawv pov thawj & Marking
Yuav tsum Marking:
Tus neeg tsim khoom lub npe lossis lub cim lag luam
Txheem (JIS G3454)
Qib (piv txwv li, STPG 410)
Loj (OD x phab ntsa thickness)
Kub tooj los yog ntau tus lej
Kev kho cua sov cim (yog tias muaj)
Inspector lub cim
Ntawv pov thawj:
Mill Test Certificatesuav nrog kev tshuaj xyuas tshuaj, kev sim tshuab, cov ntaub ntawv kho cua sov, thiab cov txiaj ntsig ntawm kev ntsuas hydrostatic.
Cov ntawv pov thawj feem ntau yog lus Nyij Pooj thiab Askiv.
Traceability rau cua sov tooj yog tus qauv.
Fabrication & Vuam
Vuam Cov Lus Qhia:
Preheat:Feem ntau tsis tas rau cov phab ntsa nyias ntawm qhov kub thiab txias
Filler Hlau:AWS ER70S-6 los yog sib npaug feem ntau siv
Ncej -Kev kho cua sov:Kev xaiv rau kev daws kev ntxhov siab; ua raws li cov cai
Txheej Txheem Tsim Nyog:Yuav tsum muaj raws li kev tsim kho code
Bending & Forming:
Txias Khoov:Txais nrog cov cuab yeej tsim nyog
Kub dabtsi yog khoov:Pom zoo rau cov phab ntsa tuab lossis nruj radii
Yam tsawg kawg nkaus Khoov Radius:Feem ntau 3 × OD rau txias khoov
Ordering Information
Cov ntaub ntawv tseem ceeb los muab:
Standard & Qib:JIS G3454 STPG 410
Kev kho cua sov:Qhia meej yog tias normalized, annealed, thiab lwm yam. (default is as -rolled)
Qhov Loj:Sab nraud Diameter (mm) x Phab Ntsa Thickness (mm) x Length (mm los yog m)
Ntim:Tus naj npawb ntawm daim los yog tag nrho meters
Kev npaj kawg:Plain, beveled (lub kaum sab xis thiab av), los yog threaded
Kev Xeem Xeem:Cov qauv xeem lossis lwm yam ntxiv (xws li UT, PMI)
Ntawv pov thawj:Yuav tsum tau lus Askiv MTC nrog rau tus lej xov tooj cua sov traceability
Ntim:Bundle loj, kev tiv thaiv yuav tsum tau
Qauv Order Specification:
ntawv nyeem
JIS G3454 STPG 410 Seamless Yeeb Nkab OD: 114.3 mm, WT: 6.0 mm, Length: 6000 mm Quantity: 100 pieces Ends: Plain, cut square Heat Treatment: As-rolled Certificate: Mill Test Certificate (English Test Certificate 31.10) EN Raws li JIS G3454, suav nrog tus lej xov tooj cua sov
Cov qauv sib npaug & sib piv
| Thaj tsam | Sib piv Standard | Qib Qib |
|---|---|---|
| Teb chaws USA | ASTM A106 1 | Qib B |
| Teb chaws Europe | TS EN 10216-2 | P235GH |
| Lub teb chaws Yelemees | TIAB SA 17175 | ib 35.8 |
| Thoob ntiaj teb | ISO 9329-2 | P235 |
Kev Siv Cov Lus Qhia
Japanese Plant Design:Yuav luag ib txwm teev nyob rau hauv Japanese- cov chaw tsim khoom
Kev siv Marine:Feem ntau siv nyob rau hauv shipbuilding rau Japanese faib pawg (NK Class)
Fais fab nroj tsuag:Feem ntau siv nyob rau hauv Asian zog tej yaam num
Kev hloov khoom siv:Feem ntau lees txais zoo ib yam li A106B nrog kev tshuaj xyuas cov ntaub ntawv kom raug
Kev Pom Zoo:Feem ntau suav hais tias yog- cov khoom zoo
Cov ntsiab lus
JIS G3454 carbon steel seamless yeeb nkabyog ib qho zoo -zoo, dav- siv cov qauv hauv Asian lag luam rau kev siv cov kav dej dav dav. CovTIAB SA 410Qib yog cov neeg ua haujlwm sib npaug rau ASTM A106 Qib B, muab cov khoom siv zoo sib xws nrog cov tshuaj sib txawv me ntsis txwv.
Thaum muab JIS G3454 yeeb nkab, xyuam xim rau:
Kev lees paub qhov tseeb ntawm qib thiab kev kho cua sov
Txheeb xyuas qhov ntsuas hydrostatic siab tau siv
Ua kom muaj cov ntaub ntawv Askiv zoo rau cov haujlwm thoob ntiaj teb
Nkag siab txog cov cai pom zoo rau koj qhov project tshwj xeeb
Tus qauv muab kev ntseeg tau zoo rau chav dej, dej, roj, roj, thiab kev pabcuam huab cua ntawm qhov kub txog li 350℃(660℃F), ua rau nws haum rau feem ntau cov kav dej.
* Ceebtoom: Rau ASME Code kev tsim kho, txheeb xyuas nrog Tus Neeg Saib Xyuas Tso Cai tias JIS G3454 cov khoom siv tau rau qhov kev pabcuam, vim nws tsis yog ASME - cov ntaub ntawv pom zoo tshwj tsis yog tias tau lees paub los ntawm kev txiav txim lossis los ntawm kev thov hloov khoom siv.*
