JIS G3456 Carbon Steel Seamless Pipes rau Siab -Kev Pabcuam Siab
Txheej txheem cej luam
JIS G3456yog Japanese Industrial Standard raucarbon steel seamless kav rau siab - kev pabcuam siab. Nws npog cov kav dej tshwj xeeb tsim rau cov ntawv thov uas xav tausuperior toughness thiab siab zog kujpiv rau cov kav dej siab txheem, feem ntau yog siv rau hauv siab -siab chav, hydraulic systems, thiab cov txheej txheem tseem ceeb.
Qib System & Designations
JIS G3456 siv aob -ib feem kev xaivqhia ob leegyam tsawg kawg nkaus tensile zogthiabcuam tshuam toughness xav tau:
| Qib Qib | Yam tsawg kawg nkaus Tensile (MPa) | Charpy Impact Requirement | Sib piv Standard |
|---|---|---|---|
| TIAB SA 370 | 370 | Tsis xav tau | ASTM A53 Gr. A |
| TIAB SA 410 | 410 | Tsis xav tau | ASTM A53 Gr. B |
| TIAB SA 480 | 480 | Tsis xav tau | - |
| TSI 370 L | 370 | 27j0 qib | - |
| TSI 410 L | 410 | 27j0 qib | ASTM A333 Gr 1. |
| TSI 480 L | 480 | 27j0 qib | - |
Nomenclature:
STS: Seamless Tube rauSiab -Kev Pabcuam Siab("S" rau siab tshwj xeeb)
Tus lej: Yam tsawg kawg tensile zog hauv MPa
L: QhiaTsawg kubcuam tshuam - qib xeem
Mechanical Properties
Chav ntsuas kub:
| Qib | Tensile zog (MPa) Min | Yield zog (MPa) Min | Elongation (%) Min |
|---|---|---|---|
| TSI 370/370L | 370 | 205 | 30 |
| STS 410/410L | 410 | 235 | 25 |
| TSI 480/480L | 480 | 265 | 20 |
Qhov yuav tsum tau muaj kev cuam tshuam (L- qib nkaus xwb):
Kev ntsuas kub:0 degree
Tsawg zog:27 Joules (nruab nrab ntawm 3 tus qauv)
Yam tsawg kawg nkaus tus nqi:20 jul
Cov Qauv Xeem:Longitudinal, puv - loj yog tias ua tau
Chemical Composition (Maximum%)
| Qib | C | Si | Mn | P | S | Ntsiab Feature |
|---|---|---|---|---|---|---|
| TIAB SA 370 | 0.25 | 0.35 | 0.60 | 0.035 | 0.035 | Standard carbon hlau |
| TIAB SA 410 | 0.30 | 0.35 | 0.60 | 0.035 | 0.035 | Qib feem ntau |
| TIAB SA 480 | 0.30 | 0.35 | 0.90* | 0.035 | 0.035 | Siab Mn rau lub zog |
| STS XXXL | Ib yam li qib hauv paus | 0.030 | 0.030 | Tighter impurity tswj |
* Mn txog 0.90% tso cai los ntawm kev pom zoo rau STS 480
*L- cov qhab nia muaj kev txwv P/S nruj dua rau kev ua tau zoo dua
Kev tsim khoom
Kev Tsim Kho Tshwj Xeeb rau Siab -Kev Pabcuam Siab:
Hlau Ua:Hluav taws xob rauv lossis yooj yim oxygen nrognqus tsev degassingxaiv tau
Kev xyaum tua:Fully tua steel nrog grain refinement
Kub ua haujlwm:Precision piercing thiab elongation rau uniform qauv
Kev kho cua sov: Normalized los yog normalized & tempered(yuav tsum tau)
Kev kos duab txias:Yeem rau qhov tseeb qhov ntev thiab txhim kho nto
Kev tshuaj xyuas tshwj xeeb:Txhim kho kev sim rau siab - siab ncaj ncees
Qhov Loj Loj:
Sab nraud txoj kab uas hla:6.0mm txog 350mm (≈ ¼ "mus rau 14")
Phab ntsa Thickness:1.0mm txog 40mm
Ntev:Feem ntau 4-8m; mus txog 14m muaj
Kev kho cua sov yuav tsum tau
| Cov xwm txheej cim | Kev kho cua sov | Kev siv tau |
|---|---|---|
| N | Li qub | Txheem rau feem ntau qib |
| NT | Normalized & Tempered | Rau cov phab ntsa hnyav dua lossis L- qib |
| SR | Kev ntxhov siab | Rau txias - ua haujlwm yeeb nkab |
| Q | Quenched & Tempered | Rau siab tshaj qhov yuav tsum tau muaj zog |
Nco tseg:Tsis zoo li JIS G3454, JIS G3456ib txwm xav tau kev kho cua sovkom ua tiav cov khoom tshwj xeeb rau siab - kev pabcuam siab.
Kev Ntsuas & Kev Ntsuam Xyuas Cov Cai (Txhim Kho)
| Kuaj | Kev xav tau | Cov Lus Qhia Tshwj Xeeb rau G3456 |
|---|---|---|
| Hydrostatic Test | Siab siab:Min 10 MPa (1,450 psi) los yog xam | Siab ntau dua los yog sib npaug rau 2 × S × tDD2 × S × t qhov twg S=80% ntawm min tawm los |
| Tensile Test | Transverse specimens rau OD Ntau dua lossis sib npaug li 40mm | Kev ntsuam xyuas tau uatom qabKev kho cua sov kawg |
| Impact Test | Yuav tsum tau ua rau qib L- | Tag nrho - cov qauv loj thaum ua tau |
| Flattening Test | Rau OD Tsawg dua lossis sib npaug li 50mm | hnyav dua li G3454 yuav tsum |
| Kev kuaj tsis raug | Kev kuaj ultrasonic pom zoo | Rau kev kuaj xyuas ntawm laminations thiab suav nrog |
| Hardness Test | Feem ntau teev | Txhawm rau txheeb xyuas qhov sib xws ntawm kev kho cua sov |
| Microstructure Exam | Kev xaiv rau kev pabcuam tseem ceeb | Xyuas cov nplej loj thiab uniformity |
Dimensional Tolerances (Tighter dua G3454)
| Dimension | Ua siab ntev | Cov Kev Cai Tshwj Xeeb |
|---|---|---|
| Sab nraud txoj kab uas hla | OD Tsawg dua lossis sib npaug li 50 hli: ± 0.3 hli OD> 50 hli: ± 0.75% |
Tighter dua G3454 |
| Phab ntsa Thickness | +10%, -5% ntawm nominal | Tighter negative kam rau ua |
| Eccentricity | Tsawg dua los yog sib npaug li 8% ntawm nominal phab ntsa | Tswj rau siab uniformity |
| Ntev | Tsau: +5 mm, 0 mm | Tighter dua G3454 |
| Kev ncaj | Tsawg dua lossis sib npaug li 0.15% ntawm qhov ntev | Zoo dua rau precision installation |
| Nto tiav | Ra Tsawg dua lossis sib npaug li 12.5 μm feem ntau | Smoother rau qaug zog kuj |
Daim ntawv thov
Primary Industries:
Kev tsim hluav taws xob: High-pressure feedwater lines (>1000 psi), boiler tubing
Hydraulic Systems:Accumulator piping, siab -siab hydraulic kab
Roj & Roj:Cov kav dej zoo, cov khoom siv ntoo Christmas, cov kab txhaj tshuaj
Kev ua tshuaj lom neeg:Siab -siab reactor feed kab, synthesis loops
Shipbuilding:High -siab tshuab, hydraulic zog units
Industrial:High -cov tshuab ntsuas siab, accumulator piping
Hom Kev Pabcuam:
Siab:Feem ntau> 1000 psi (7 MPa), mus txog 5000+ psi
Kub:Mus txog 350℃(zoo ib yam li G3454)
Cyclic Service:Qhov twg qaug zog kuj tseem ceeb
Daim Ntawv Thov Kev Nyab Xeeb Tseem Ceeb:Qhov twg tsis ua tiav qhov tshwm sim hnyav
Kev sib piv nrog lwm cov qauv JIS
| Parameter | JIS G3456 (High Pressure) | JIS G3454 (Pressure) | JIS G3455 (High Temp) |
|---|---|---|---|
| Ua kom pom tseeb | Siab siab & toughness | Kev pabcuam dav dav | High kub & creep |
| Kev kho cua sov | Ib txwm xav tau | Xaiv tau | Ib txwm xav tau |
| Kev sim cuam tshuam | Yuav tsum muaj rau qib L- | Tsis xav tau | Qee zaum tau teev tseg |
| Kev ntsuas siab | Siab tshaj | Txuj | Kub -nyob |
| Kev siv yam | Hydraulic, HP chav | General kav dej | Boilers, superheaters |
| Tus nqi hwm | 15-25% dhau G3454 | Lub hauv paus | 20-40% dhau G3454 |
Tsim kev xav txog kev kub siab
Phab ntsa Thickness xam:
SivBarlow's formulanrog ntau yam kev nyab xeeb:
t=P × D2 × S × E × F + CAt =2 × S × E × FP × D + CA
Qhov twg:
FF=Kev nyab xeeb ntxiv rau siab - kev pabcuam siab
EE=Weld joint efficiency (1.0 rau seamless)
CACA=Corrosion pub nyiaj
Fatigue Considerations:
Nto tiav qhov tseem ceeb rau kev pabcuam cyclic
Tsis txhob muaj kev ntxhov siab thiab kev ntxhov siab
Xav txogautofrettagerau ultra- daim ntawv thov siab
Fabrication Requirements:
Vuam:Tag nrho nkag mus welds nrog NDE
Khoov:Loj qhov tsawg kawg nkaus khoov radii
Kev them nyiaj yug:Kev txhawb nqa ntau zaus los txo kev vibration
Kev tshuaj xyuas:Kev nruj dua li cov kav dej txheem
Cov ntaub ntawv pov thawj & Traceability
Cov ntaub ntawv kho kom zoo:
Comprehensive MTC:Nrog rau tag nrho cov kev kho cua sov tsis
Impact Test Reports:Rau L- qib nrog tus nqi ntawm tus kheej
NDE Cov Lus Qhia:Ultrasonic los yog radiographic yog ua tau
Daim Ntawv Qhia Txog Kev Kho Kub Kub:Sijhawm -cov ntaub ntawv ntsuas kub
Traceability:Ua kom tiav los ntawm yaj mus rau qhov khoom kawg
Cov Lus Cog Tseg (Ntxiv rau):
Qib nrog "L" cov lus xaus yog tias raug kuaj
Kev kho cua sov (N, NT, thiab lwm yam)
Hydrostatic xeem siab
"UT" yog kuaj ultrasonically
Ntau tus lej rau traceability
Ordering Information
Cov ntsiab lus tseem ceeb Specification:
Qib Qib:JIS G3456 STS 410 L (rau kev cuam tshuam - kuaj)
Kev kho cua sov:Qhia qhov xwm txheej (piv txwv li, Normalized & Tempered)
Kev kuaj:Ib qho kev xeem ntxiv dhau tus qauv
Qhov Loj:Nrog nruj dua kev kam rau siab yog tias xav tau
Kev npaj kawg:Tshwj xeeb bevels rau siab -kev ncaj ncees vuam
Qauv Order Specification:
ntawv nyeem
JIS G3456 STS 410 L Seamless Pipe Thaum tshav kub kub kho: Normalized & Tempered (NT) OD: 114.3 mm ± 0.5%, WT: 11.0 mm +10%/-5% Length: 7000 mm +5/7 mm. Quantity: 3 mm. 1.6mm av Kev Xeem: Txuj + Ntev-ntev Ultrasonic Test Impact Test: Ntawm 0 degree, qhia tus kheej qhov tseem ceeb Certificate: EN 10204 3.2 nrog tag nrho traceability Marking: Ib JIS ntxiv "UT" thiab "L" xaiv
Kev lag luam siv qauv
Kev nyiam hauv cheeb tsam:
Nyiv:Txheem rau tag nrho cov siab -siab hydraulic thiab fais fab tshuab
Asia:Feem ntau hauv Japanese- tsim cov nroj tsuag thiab khoom siv
Ntiaj teb no:Siv thaum Japanese OEM cov cuab yeej tau teev tseg
Sector -Tshwj xeeb daim ntawv thov:
Hydraulic Power Units:Accumulator piping, twj tso kua mis
Fais fab nroj tsuag:Siab -siab feedwater (1000-3000 psi)
Roj & Roj:Zoo tswj cov cuab yeej, cov tshuab txhaj tshuaj
Kev tsim khoom:High-siab test stands, autoclaves
Tubrog nkoj:Steering iav hydraulic systems
Qhov Kev Pom Zoo Ua Haujlwm Zoo
Qhov tseem ceeb ntawm kev ua tau zoo:
Uniform Hardness:Los ntawm phab ntsa thickness thiab raws li ntev
Surface Integrity:Tsis muaj seams, laps, thiab inclusions
Dimensional Precision:Tshwj xeeb yog phab ntsa thickness uniformity
Microstructure:Fine -grained, uniform ferrite-pearlite
Kev huv huv:Cov ntsiab lus tsis tshua muaj rau kev qaug zog ua haujlwm
Kev tshuaj ntsuam xyuas:
Kev kuaj ultrasonic:Rau sab hauv tsis xws luag thiab ntsuas phab ntsa
Sib nqus Particle:Rau qhov tsis xws luag
Dye Penetrant:Rau saum npoo - tawg tsis xws luag
Kev txheeb xyuas cov khoom zoo:Rau kev txheeb xyuas qib
Cov qauv sib npaug hla-Reference
| JIS G3456 | ASTM sib npaug | DIN sib npaug | Daim ntawv thov tseem ceeb Match |
|---|---|---|---|
| TIAB SA 410 | A106 gr. B | ib 35.8 | General siab -siab |
| TSI 410 L | A333 Gr . 1 | - | Tsawg- kub siab - siab |
| TIAB SA 480 | - | Ib 52.0 | Siab zog HP |
| TSI 480 L | - | - | Siab-lub zog, qis-HP |
Qhov zoo tshaj Standard Pressure Pipe
Superior Toughness:Tshwj xeeb tshaj yog rau L- cov qhab nia nrog rau qhov kev ntsuam xyuas
Zoo dua Fatigue Resistance:Los ntawm kev tswj cov cua sov
Higher Pressure Rating:Nws tuaj yeem siv rau kev tsim qauv siab dua
Txhim kho Weldability:Los ntawm kev tswj tshuaj nruj dua
Txhim khu kev ntseeg tau:Kev tsim khoom nruj dua thiab kev sim
Zoo dua qis-Tsev Kev Ua Haujlwm:L-qib haum rau cov kev pabcuam txias
Kev txwv & kev txiav txim siab
Tus nqi:15-30% premium tshaj cov kav dej siab
Muaj:Tsawg feem ntau stocked dua G3454
Lub Sijhawm Lead:Ntev dhau los ntawm kev ua haujlwm ntxiv thiab kev sim
Tshaj - specification:Tsis xav tau rau cov ntawv thov siab nruab nrab
Fabrication:Yuav tsum tau ua tib zoo tuav thiab vuam txheej txheem
Cov ntsiab lus
JIS G3456sawv cev raupremium qib ntawm carbon steel seamless yeeb nkabnyob rau hauv JIS system, tshwj xeeb engineered rausiab - siab thiab cov ntawv thov tseem ceebqhov kev ntseeg siab, toughness, thiab qaug zog kuj tseem ceeb heev.
Key Differentiators:
Yuav tsum tau kho cua sovrau tag nrho cov kav dej
Kev xaiv muaj feem cuam tshuam - qib xeem (L-qib)rau qis-kev pabcuam kub
Tighter dimensional tolerancesthiab chemical tswj
Kev ntsuas hydrostatic siab dua
Txhim kho kev xeem thiab cov ntaub ntawv xav tau
Thaum twg los qhia JIS G3456:
Tsim siab tshaj 1000 psi (7 MPa)
Kev pabcuam cuam tshuam nrog kev caij tsheb kauj vab los yog qaug zog
Tsawg- qhov kub thiab txias yog ua tau
Daim ntawv thov yog kev nyab xeeb- tseem ceeb heev nrog rau qhov ua tsis tiav loj
Cov khoom siv Japanese lossis cov qauv tsim qauv tswj nws txoj kev siv
Tus qauv txuas qhov sib txawv ntawm cov kav dej dav dav dav dav (G3454) thiab siab -kub alloy piping (G3455), muab cov pa roj carbon zoo rau kev xav tau siab - ib puag ncig siab.
*Note: For ultra-high pressure applications (>10,000 psi), txawm tias cov qauv tshwj xeeb lossis cov khoom siv yuav xav tau dhau ntawm JIS G3456 qhov kev ua haujlwm raug.*
