ASTM A420 WPL6 luj tshib|45℃& 90℃Carbon Steel Butt Weld Haum
BW FittingType: Luj tshib, Tee, Reducer, Hla, Cap
Loj: 1/2 "-60"
Thickness: Sch5s-Schxxs
Txuj: ASME, MSS, ISO, DIN, JIS
Zhengzhou Huitong Pipeline Equipment Co., Ltd. yog ib qho ntawm cov ua lag luam thiab cov muag khoom ntawm ASTM A420 WPL6 Luj Tshib|45℃& 90℃Carbon Steel Butt Weld Fitting nyob rau hauv Suav teb. Peb zoo siab tos txais koj los yuav peb ASTM A420 WPL6 Luj tshib|45℃& 90℃Carbon Steel Butt Weld Haum. Peb lub Hoobkas kuj lees txais cov kev txiav txim customized. Thov pub dawb kom txaus siab rau peb cov nqi sib tw thiab kev pabcuam zoo heev.
ASTM / ASME SA420 WPL6 Tsawg temp Carbon Steel FittingsLTCS
IbASTM A420 WPL6 luj tshibyog wrought carbon steel taub qab -weld haum tsim rauqis -kub -46℃(-50℃F) piping service, feem ntau siv hauv cov roj thiab roj, LNG, petrochemical, thiab txheej txheem kav dej. Tus nqi lag luam raug nqi hauv 2026 tej zaum yuav txawv ntawm kwv yees li$1.80–$5.50/kg, nyob ntawm qhov loj me, lub sijhawm, kev tsim khoom, kev xeem yuav tsum tau ua, thiab kev txiav txim kom muaj nuj nqis.
ASTM A 420 GR WPL6 Yeeb Nkab Fittings yog ib hom pob tw vuam yeeb nkab fittings, lawv feem ntau yog tsim los ntawm cov kav hlau steel ntawm ASTM A333 Qib 6. Cov khoom siv no yuav tsum tau teem caij charpy V cuam tshuam qhov ntsuas kub ntawm -46 degree, kom paub tseeb tias nws tuaj yeem ua haujlwm nyob rau hauv qhov kev pab cuam kub qis dua, piv txwv li hauv dej hiav txwv dej, piv txwv li hauv cov dej txias.
ASTM A420 WPL6 Buttweld Yeeb Nkab Fittings yuav tsum tau mus rau hauv kev kuaj hluav taws xob, kuaj hydrostatic thiab lwm yam txhawm rau txhim kho cov khoom zoo. Cov yeeb nkab haum no tau ntim rau hauv lub thawv ntoo lossis rooj plaub kom tsis txhob muaj kev puas tsuaj. Qhov no yog siv rau hauv ntau daim ntawv thov xws li roj av, machinery, thiab lwm yam thiab nws muaj nyob rau hauv qhov tseeb dimension, durability, thiab lwm yam nta.
LTCS A420 WPL6 luj tshib / Nqi 2026
| Khoom | Hom Loj | Tus nqi kwv yees 2026 | Kwv yees li. Nqe Basis |
| WPL 6 90℃LR Luj tshib | 1/2"–2" | $2.50–$5.50/kg | Qhov me me |
| WPL 6 90℃LR Luj tshib | 3"–8" | $2.00–$4.20/kg | Txheem phab ntsa thickness |
| WPL 6 90℃LR Luj tshib | 10"–24" | $1.80–$3.80/kg | Qhov project kom muaj nuj nqis |
| Hnyav-wall WPL6 Luj tshib | SCH 80 – SCH 160 | $2.80–$6.00/kg | Cov nqi siab dua / kuaj |
| Loj Dia WPL6 Luj Tshib | 26"–48" | Cov lus yuav tsum tau | Ib thooj los yog ib tuj |
| Bulk WPL6 Fittings | Mixed luj tshib/tees/reducers | $1,800–$3,800/ton | MOQ / qhov project nyob ntawm |
Tus nqi ntawm ibASTM A420 WPL6 luj tshibfeem ntau yog siab dua tus qauv ASTM A234 WPB carbon steel luj tshib vim tias qis - qhov kub thiab txias muaj peev xwm ntxiv cov khoom siv, kev kho cua sov, Charpy cuam tshuam kev kuaj, traceability, thiab cov nqi tshuaj xyuas.
ASTM A420 WPL6 Luj tshib yog dab tsi?
ASTM A420 WPL6 yog alow-kub carbon steel taub qab-weld haum cov khoom. WPL6 lub luj tshib feem ntau yog tsim los ua45 degree, 90 degree, lossis 180℃luj tshibthiab muab nyob rau hauv ntev - vojvoog los yog luv - vojvoog configurations raws liASME B16.9. Beveled vuam xaus feem ntau ua raws li ASME B16.25.
Cov khoom siv raug xaiv thaum zoo tib yam ASTM A234 WPB fittings tsis muab cov ntaub ntawv pov thawj txaus rau kev pabcuam sub-zero. WPL6 yuav tsum muaj kev ntsuas cuam tshuam rau qis- daim ntawv thov kub, nrog rau qib feem ntau teev rau kev pabcuam ib puag ncig-45℃rau -46 degree, raws li txoj cai tswjfwm thiab qhov project yuav tsum tau ua. Yam tsawg kawg nkaus txhua yam yuav tsum muaj xws li415 MPa tensile zogthiab240 MPa yield zog.
Cov ntawv thov ib txwm muaj xws li:
- LNG thiab cryogenic txheej txheem piping
- Cov khoom siv roj thiab roj
- Tsawg-kub cia tshuab
- Petrochemical nroj tsuag
- Kev thauj mus los hauv tub yees
- Offshore thiab txias - huab cua pipelines
Ntev Radius vs Short Radius WPL6 Luj tshib
| Lub luj tshib hom | Centerline Radius | Siab poob | Cov yam ntxwv ntws | Qhov chaw nruab |
| Ntev Radius, LR | 1.5D | qis | Zoo dua | Loj dua |
| Luv Radius, SR | 1.0D | Siab dua | Ntau turbulence | Me me |
astm a 420 wpl6 fittings tshuaj muaj pes tsawg leeg
| Element | WPL6 yuav tsum tau, % |
| Carbon, C | Tsawg dua lossis sib npaug li 0.30 |
| Manganese, Mn | 0.50–1.35 |
| Phosphorus, P | Tsawg dua lossis sib npaug li 0.035 |
| Sulfur, S | Tsawg dua lossis sib npaug li 0.040 |
| Silicon, Sib | 0.15–0.40 |
| Nickel, Nia | Tsawg dua los yog sib npaug li 0.40 |
| Chromium, Cr | Tsawg dua lossis sib npaug li 0.30 |
| Molybdenum, Mo | Tsawg dua lossis sib npaug li 0.12 |
| tooj, Cu | Tsawg dua los yog sib npaug li 0.40 |
| Niobium, Nb | Tsawg dua los yog sib npaug li 0.02 |
| Vanadium, V | Tsawg dua lossis sib npaug li 0.08 |
A420 WPL6 Fittings Mechanical Properties
| Element | Tensile zog (Mpa) | Yield zog (0.2% Offset) | Elongation% |
| A420 WPL6 | 415 – 585 | Ntau dua lossis sib npaug li 205 | Ntau dua lossis sib npaug li 20 |
ASME SA 420 WPL6 Specification
| Qhov ntev | ANSI/ASME B16.9, MSS-SP-75, 16.28, MSS-SP-43 |
| Qib | A420 WPL6 |
| Specification & Txuj | ASTM A420 WPL6 / WPL3 |
| Hom | Seamless / Welded / Fabricated / A420 WPL6 Weld Fittings |
| Xim | Dub |
| Qhov Loj | ½ "NB txog 120" NB, Seamless ½ "mus rau 24", Welded ½ "mus rau 120", Ob leeg / Ob Half Fittings 6 "mus rau 48" |
| Radius Hom | Ntev Radius (1.5D), Luv Radius (1.0D), thiab Custom 3D / 5D Khoov |
| LTCS Fittings hom | fittings, yeeb nkab fittings, luj tshib, Tees, Reducers, Caps |
| Kev kho saum npoo | xuab zeb blasting, Sand Rolling, Sand Blasting |
| Cov qauv siv tau | ASME B 16.9 rau loj Bore LTCS Fittings |
| ASME B 16.11 rau me me Bore LTCS Yeeb Nkab Fittings (socket welded) | |
| ASME B 16.25 rau ASTM A420 WPL6 Buttweld Yeeb Nkab Fittings | |
| ASME B 16.28 rau lub vojvoog me me A420 WPL6 Luj tshib | |
| Khoov Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D lossis Custom |
| Phab ntsa thickness | SCH10, SCH20, SCH30, STD, SCH40, SCH60, XS, SCH80, SCH100, SCH120, SCH140, SCH160, XXS muaj nrog NACE MR 01-75 |
| Cov txheej txheem | THAUM WELD / FOREGED |
| Hom Khoom | Reducer, Concentric Reducer, Luj tshib, Ntev Radius Luj Tshib, Luv Radius Luj Tshib, Tee, Sib npaug Tee, Txo Tee, Hla, Khoov, Ntev Radius Khoov, Piggable Khoov, Con Reducer, Ecc Reducer, Eccentric Reducer, Yeeb Nkab Kawg |
ASTM A420 WPL6 Lub luj tshib loj
| NPS | O.D. | 90 degree | 45 degree | 45 degree | 90 degree |
| D | 3D | 3D | Ntev Rad | Ntev Rad | |
| Center to End | Center to End | Center to End | Center to End | ||
| A | B | B | A | ||
| 18 | 457 | 1372 | 568 | 286 | 686 |
| 20 | 508 | 1524 | 632 | 318 | 762 |
| 22 | 559 | 1676 | 694 | 343 | 838 |
| 24 | 610 | 1829 | 757 | 381 | 914 |
| 26 | 660 | 1981 | 821 | 406 | 991 |
| 28 | 711 | 2134 | 883 | 438 | 1067 |
| 30 | 762 | 2286 | 946 | 470 | 1143 |
| 32 | 813 | 2438 | 1010 | 502 | 1219 |
| 34 | 864 | 2591 | 1073 | 533 | 1295 |
| 36 | 914 | 2743 | 1135 | 565 | 1372 |
| 38 | 965 | 2896 | 1200 | 600 | 1448 |
| 40 | 1016 | 3048 | 1264 | 632 | 1524 |
| 42 | 1067 | 3200 | 1326 | 660 | 1600 |
| 44 | 1118 | 3353 | 1389 | 695 | 1676 |
| 46 | 1168 | 3505 | 1453 | 727 | 1753 |
| 48 | 1219 | 3658 | 1516 | 759 | 1829 |
ASTM A420 Gr WPL6 cov khoom siv tsis tu ncua los ntawm ntau qhov kev lag luam xws li kev tsim kho, engineering, LPG kab, roj thiab roj los ntawm cov kws tsim khoom tsim nyog. Qes Kub WPL6 Fittings yog siv los tswj qhov muaj feem ntau ntawm cov kua los yog tshuaj lom. Cov A420 Qib WPL6 fittings yog qhov kev xaiv zoo tshaj plaws rau -45 deg kub.
CEEB TOOM:
(1) Rau txhua qhov txo qis ntawm 0.01% C hauv qab 0.30%, qhov nce ntawm 0.05% Mn siab dua 1.06% yuav tso cai, nce mus txog qhov siab tshaj ntawm 1.35%.
(2) A420 WPL6 Fittings ua los ntawm forgings yuav muaj 1.35% max Mn.
Qhov siab tshaj plaws tso siab rau ntawm qhov kub siab
| Temp. | -20~100 | 150 | 200 | 300 | 400 | 500 |
| *MAS | 17.1 | 17.1 | 17.1 | 17.1 | 17.1 | 17.1 |
| Temp. | 600 | 650 | 700 | 750 | 800 | 850 |
| *MAS | 17.1 | 17.1 | 15.6 | 13.0 | 10.8 | 8.7 |
* Kub: hlau kub,℃F, tsis tshaj. * MAS: siab tshaj plaws tso cai, ksi.
A420 WPL6 vs A234 WPB vs A420 WPL3
| Khoom | A420 WPL6 | A234 PAB | A420 WPL3 |
| Daim ntawv thov tseem ceeb | Tsawg-tej dej kub | General carbon steel kav | Txo -kev pabcuam kub |
| Yam tsawg kawg nkaus Yield Strength | 240 MPa | 240 MPa | Nyob ntawm specification |
| Tensile zog | 415-655 MPa | 415-585 MPa | Qib- tshwj xeeb |
| Kev ntsuam xyuas cuam tshuam | Yuav tsum muaj rau WPL6 kev tsim nyog | Tsis cia li sib npaug rau WPL6 | Yuav tsum tau raws qib |
| Yam tsawg-Tub muaj peev xwm | Nyob ib ncig ntawm -45℃/ -46 degree | -29 ° F (-20 ° F) | Txo -kev siv kub |
| Tus nqi txheeb ze | Nruab nrab | qis | Feem ntau siab dua / qhov project nyob ntawm |
| Kev siv yam | LNG, offshore, kev pabcuam txias | General roj & roj, dej, chav | Tsawg-kev pabcuam kub |
ASTM A234 WPB vs A420 WPL6
Engineers often debate substituting standard ASTM A234 WPB with WPL6. While WPL6 carries a 15–30% cost premium, substituting it in outdoor arctic or refrigeration projects avoids regulatory non-compliance fines and prevents costly brittle failures. Conversely, for indoor high-temperature steam lines (>200 ∘C), WPL6 tsis muaj kev ua tau zoo dua WPB thiab yog kev lag luam tsis ncaj ncees.
SA 420 WPL6 cov ntaub ntawv siv
1. LNG thiab Natural Gas Facilities
A420 WPL6 lub luj tshib feem ntau tau teev nyob rau hauv qis -kub roj thiab LNG- ntsig txog cov kav dej uas cov pa roj carbon steel fittings yuav tsum tau kuaj xyuas qhov hnyav.
Cov txheej txheem muaj xws li:
- Gas ua
- Tsawg-kub cais
- Cov tub yees txias
- LNG auxiliary kav
- Txias natural gas kis systems
2. Offshore Roj thiab Roj
Offshore installations tej zaum yuav muaj qhov kub thiab txias ambient thiab hloov ceev ceev. Kev xaiv cov khoom yuav tsum xav txog qhovyam tsawg kawg nkaus hlau kub thaum lub sij hawm depressurization, tsis tsuas yog qhov kev khiav hauj lwm qhov kub thiab txias.
3. Cov tub yees thiab muaj cua txias
Cov tshuab tub yees loj loj tuaj yeem nthuav tawm cov kav dej kom qis - xoom kub. WPL6 muab qhov muaj zog qis dua - qhov kub thiab txias dua li cov qauv uas tsis yog - cuam tshuam - kuaj carbon steel fittings.
4. Arctic thiab txias - Cov kav dej nyab xeeb
Cov kav dej uas tau teeb tsa hauv thaj chaw txias yuav tsum xav txog kev pib, kaw, cua txias thiab qis - qhov ntsuas kub ntawm qhov ntsuas kub.
Weldability thiab Fabrication
a 420 wpl6 luj tshib vuam:
WPL6 muaj cov pa roj carbon sib npaug tswj kom ntseeg tau zoo weldability, tab sis cov cua kub tsis zoo tuaj yeem ua rau qis qis -kub toughness.
Preheating: Feem ntau tsis xav tau rau cov ntu nyias (< 25 mm) at ambient temperatures above 10°C, but preheating to 100°C–150°C is strongly recommended when ambient temperatures drop below freezing or for wall thicknesses exceeding 25 mm.
Interpass Kub: Khaws qis dua 200℃los tiv thaiv cov nplej coarsening hauv Heat Afected Zone (HAZ), uas tuaj yeem ua rau tsis zoo rau sub-zero impact resistance.
"Yuav ua li cas txheeb xyuas yog tias A420 WPL6 lub luj tshib xa khoom muab qhabnias Mill Test Reports (MTRs) nrog Charpy cuam tshuam cov txiaj ntsig?"
Ib txwm hla- hais txog tus lej cua sov ntawm qhov haum nrog MTR kom ntseeg tau tias CVN lub zog nqus qhov tseem ceeb raws li ASME B16.9 thiab ASTM A420 tus qauv.
ASTM A420 WPL6 lub luj tshib puas tuaj yeem welded ncaj qha rau API 5L X65 kab kav tsis muaj preheating?
Rau kev vuam mus rau siab - cov kav dej xa tawm zoo li X65, preheat yuav tsum nyob ntawm qhov sib npaug ntawm cov pa roj carbon sib npaug (CE) thiab cov phab ntsa tuab, feem ntau yuav tsum tau nruj WPS / PQR validation.
FAQ:
Q: Tus nqi nruab nrab ntawm ASTM A420 WPL6 lub luj tshib yog dab tsi hauv 2026?
A: Cov nqi feem ntau yog li ntawm $ 2.50 txog $ 6.80 ib thooj rau me me - txoj kab uas hla (1/2 "mus rau 2") SCH 40 lub luj tshib, thiab tuaj yeem tshaj $ 150- $ 450 rau qhov hnyav dua - phab ntsa configurations (14" thiab siab dua).
Q: Thaum twg koj yuav tsum siv ASTM A420 WPL6 hloov ASTM A234 WPB?
A: Siv WPL6 thaum twg qhov kev ua haujlwm kub poob qis dua -29℃(-}20℃F) mus rau -46℃(-50℃F), lossis thaum yuav tsum tau kuaj Charpy V-Notch ntawm qhov ntsuas kub qis yog teev los ntawm cov lej ua haujlwm.
Q: Vim li cas carbon steel piping tawg tom qab qis - vuam vuam?
A: Kev tawg yog feem ntau yog tshwm sim los ntawm cov cua txias ntau dhau, hydrogen embrittlement, los yog cov cua kub nkag siab uas coarsens cov qauv nplej hauv HAZ, ua rau qis qis - qhov kub thiab txias cuam tshuam lub zog. Kev siv qis- hydrogen electrodes thiab tswj preheating txo qhov kev pheej hmoo no.
Q: Puas yog post-weld heat treatment (PWHT) yuav tsum tau ua rau WPL6 lub luj tshib?
A: PWHT feem ntau yuav tsum tau yog tias cov phab ntsa nominal tuab tshaj qhov tshwj xeeb (feem ntau yog 19 hli lossis raws li tau hais los ntawm ASME B31.3) lossis yog tias txias - ua kom muaj zog tshaj li cov cai txwv, kom ntseeg tau tias cov kev ntxhov siab seem tau txo qis.
Q: Puas yog A420 WPL6 carbon steel lossis stainless hlau?
A: A420 WPL6 yog qhov qis -kub carbon steel.
Q: Dab tsi yog qhov ntsuas qhov ntsuas kub rau WPL6 fittings?
A: Feem ntau kuaj ntawm -46 degree.
Hais txog Zhengzhou Huitong Pipeline Equipment Co., LTD.
HT PIPE yog ib tug zoo-paub stockist thiab exporter. Peb yog cov khoom siv stainless / carbon / npib tsib xee alloy khoom xa khoom nrog 15+ kev xa tawm. Peb tsis tsuas yog muab cov kav dej, phaj, puag ncig, tab sis kuj yog cov yeeb nkab fittings, flanges, thiab lwm yam. Tiv tauj peb kom paub ntau ntxiv thiab cov nqi dawb.
✅ ISO 9001: 2015
✅ MTC 10204 3.1 3.2
✅ 100% PMI (Positive Material Identification)
✅ Ultrasonic Testing (Rau ASME VIII)
✅ Third-Kev Tshawb Fawb Kev Tshawb Fawb (SGS/BV/DNV/LR)
✅ NACE MR0175 / ISO 15156
Author: Chloe Pu
5+ Xyoo ntawm Kev Tshaj Lij Tshaj Lij Tshaj Tawm hauv Stainless Hlau, Nickel Alloy & Carbon Steel Hlau Kev Lag Luam
Hloov tshiab kawg: Lub Yim Hli 27, 2026 (Beijing Sijhawm)
Cim npe nrov: ASTM A420 WPL6 luj tshib|45℃& 90℃Carbon Steel Butt Weld Fitting, Tuam Tshoj, manufacturers, hoobkas, nqe, customized
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