ASTM B705 UNS N06625 (Inconel 625) Welded Nickel Alloy Yeeb Nkab: Kev Tsim Khoom Muaj Peev Xwm & Cov Khoom Qhia Tshwj Xeeb Duab Tshwj Xeeb

ASTM B705 UNS N06625 (Inconel 625) Welded Nickel Alloy Yeeb Nkab: Kev Muaj Peev Xwm Tsim Khoom & Cov Lus Qhia Txog Khoom

Kev Piav Qhia Luv:

Womic Steel muab ASTM B705 UNS N06625 (Inconel 625) welded nickel alloy yeeb nkab rau qhov xav tau tshaj plaws corrosive thiab kub-kub ib puag ncig. Alloy 625 muaj kev tiv thaiv zoo rau pitting, crevice corrosion, thiab kev ntxhov siab corrosion cracking hauv chloride thiab qaub kev pabcuam, ua ke nrog lub zog siab (yield zog 415 MPa / 60,200 psi) thiab zoo heev oxidation tsis kam txog li 980 ° C. Cov alloy muaj nickel (58% min), chromium (20-23%), molybdenum (8-10%), thiab niobium (3.15-4.15%), muab kev ua tau zoo hauv dej hiav txwv, acids, thiab cov pa kub-kub. Kev tsim khoom suav nrog ERW rau cov kab me me thiab EFW rau cov kab loj, ob qho tib si nrog kev nkag mus tag nrho thiab tom qab-weld daws annealing. Sab nraud txoj kab uas hla los ntawm 6.35mm txog 610mm (1/4″ - 24″) rau ERW; txog li 1219mm (48″) rau EFW/LSAW, phab ntsa tuab 0.5mm - 40mm, qhov ntev txheem txog li 12m, kev cai txog li 18m. Daim ntawv pov thawj zeb, hydrotest, 100% UT, cov tshuaj annealed thiab pickled tiav, beveled lossis tiaj tus kawg muaj. Haum rau cov dej hiav txwv txias systems (kub siab), tshuaj ua (aggressive acids), offshore sour service (high H₂S + chlorides), flue gas desulfurization (FGD), nuclear reactors, aerospace components, thiab subsea umbilicals.

Qhov Loj ntawm Cov Yeeb Nkab Welded Nickel Alloy:Sab Nraud Txoj Kab uas hla: 6.35mm – 1,219mm (1/4″ – 48″), Phab Ntsa Thickness: 0.5mm – 40mm (Teem sijhawm 5S, 10S, 40S, 80S), Ntev: 6m – 12m tus qauv, kev cai ntev txog li 18m

Tus Qauv & Qib ntawm Welded Nickel Alloy Yeeb Nkab:ASTM B705 (pipe) / ASTM B443 (phaj) UNS N06625; kuj ASME SB-705; Sib npaug rau Inconel 625; Kev Ua Haujlwm 2.4856; TS EN 2.4856

Kev Siv Cov Yeeb Nkab Welded Nickel Alloy:Cov tshuab cua txias dej hiav txwv (kub siab, ceev siab), kev ua tshuaj lom neeg (sulfuric, hydrochloric, phosphoric acids), kev pabcuam kua qaub ntawm ntug dej hiav txwv (H₂S siab, chlorides siab, kub siab), cov pa roj flue desulfurization (FGD) cov kav dej nqus dej, cov khoom siv nuclear reactor (cov tshuab dej siab), cov kav dej hauv qab dej hiav txwv thiab cov kab tswj, cov tshuab pa tawm hauv dav hlau, cov tshuab ntxuav pa tawm hauv hiav txwv, cov khoom siv cua sov kub siab (txog li 980 ° C), cov chaw hlawv khib nyiab, cov tshuab zom pulp thiab ntawv (kub siab, chloride siab), cov raj tsim roj thiab roj (qhov dej kua qaub)

Womic Steel muab cov khoom zoo thiab cov nqi sib tw ntawm ASTM B705 UNS N06625 welded nickel alloy yeeb nkab, Inconel 625 welded raj, ERW nickel alloy yeeb nkab, EFW nickel alloy yeeb nkab, CRA yeeb nkab, kub siab corrosion resistant yeeb nkab. Mill daim ntawv pov thawj EN 10204 3.1/3.2, hydro test, UT, solution annealed, beveled/plain ends, pickled finish muaj. Lub Hoobkas ncaj qha muab rau offshore, tshuaj lom neeg, nuclear, thiab kub siab industrial projects thoob ntiaj teb.

Xa email rau peb Cov Lus Qhia Txog Khoom

Cov Khoom Qhia Txog Khoom

Cov Cim Npe Khoom

1. Womic Steel: Kev Muaj Peev Xwm Tsim Khoom & Lub Zog ntawm Lub Tuam Txhab

Womic Steel Group yog lub chaw tsim khoom tseem ceeb thiab xa khoom thoob ntiaj teb nrog ntau tshaj 20 xyoo ntawm kev txawj ntse hauv kev tsim cov kav dej tiv taus corrosion alloy (CRA) suav nrog nickel alloys. Peb lub chaw tsim khoom tshwj xeeb UNS N06625 (Inconel 625) welded yeeb nkab siv ntau yam thev naus laus zis vuam nrog kev tswj hwm nruj ntawm cov cua sov nkag thiab kev kho cua sov tom qab vuam:

●ERW (Fais fab tsis kam vuam) Kab:Rau cov txoj kab uas hla ntawm 6.35mm txog 610mm (1/4″ - 24″), phab ntsa tuab ntawm 0.5mm txog 12.7mm. Kev vuam zaus siab nrog cov cua sov tsawg heev (≤ 1.0 kJ / hli) kom tsis txhob muaj kev sib cais niobium thiab kev tsim cov theem intermetallic. Zoo tagnrho rau cov kav dej me me mus rau nruab nrab Alloy 625 rau cov hlab ntsha hauv qab dej hiav txwv thiab cov cuab yeej siv.

●EFW (Fais Fab Fusion Vuam) Kab:Rau cov txoj kab uas hla ntawm 219mm txog 1219mm (8″ - 48″), phab ntsa tuab ntawm 4.0mm txog 40mm. TIG (GTAW) cov hauv paus hla nrog SAW sau hla, siv cov hlau sib phim (ERNiCrMo-3) thiab argon thaub qab roj nrog oxygen getter.

●LSAW / SAWL Kab rau Nickel Alloys:Rau cov kab uas hla ntawm 406mm txog 1219mm (16″ - 48″), phab ntsa tuab txog li 40mm. Kev vuam arc hauv qab ntawm cov phaj hlau nickel dov nrog kev tswj cua sov nkag (≤ 1.5 kJ / hli) thiab qhov kub thiab txias interpass ≤ 120 ° C.

Txhua lub kav dej Inconel 625 uas tau vuam lawm yuav raug annealing (kev kho cua sov) ntawm 1090-1200 ° C ua raws li kev quenching dej kom yaj cov theem intermetallic (piv txwv li, sigma, delta) thiab rov qab kho qhov corrosion tsis kam thiab ductility, ua raws li pickling thiab passivation.

Cov Ntawv Pov Thawj Zoo & Kev Ua Raws Cai:

● ISO 9001: 2015 Tau Ntawv Pov Thawj

● PED 2014/68/EU (CE Marking) rau cov khoom siv siab

● EN 10204 3.2 Daim Ntawv Pov Thawj nrog kev lees paub los ntawm lwm tus (TÜV, BV, SGS, LR)

● Kev Tshuaj Xyuas Sab Nraud (TPI) tau pom zoo los ntawm SGS, BV, ABS, DNV, TÜV

● NACE MR0175 / ISO 15156 rau kev pabcuam qaub (H₂S)

● ASME Boiler thiab Pressure Vessel Code (Seem VIII, Div. 1) thaum thov

● NORSOK M-650 (raws li thov rau sab ntug dej hiav txwv)

Womic Steel muab cov kav dej Inconel 625 welded rau ntau tshaj 30 lub tebchaws thoob plaws kev lag luam offshore, tshuaj lom neeg, nuclear, thiab aerospace.

Kev Yooj Yim Tsim Khoom:

● ERW: 6.35–610mm OD × 0.5–12.7mm WT × ≤ 12m

● EFW: 219–1219mm OD × 4.0–40mm WT × ≤ 12m (ntev dua yog thov)

● LSAW: 406–1219mm OD × 6.0–40mm WT × ≤ 18m

● Cov kev xaiv tiav: Annealed thiab pickled, bright annealed (rau cov raj me me)

2. ASTM B705 UNS N06625: Cov Khoom Siv Sib xyaw & Cov yam ntxwv ua tau zoo

UNS N06625 (Inconel 625) yog ib qho hlau nickel-chromium-molybdenum nrog rau niobium ntxiv. Cov ntsiab lus nickel siab muab kev tiv thaiv zoo heev rau chloride kev ntxhov siab corrosion cracking; chromium muab kev tiv thaiv oxidation; molybdenum thiab niobium muab kev tiv thaiv pitting thiab cov khoom khov kho. Alloy 625 tswj tau lub zog siab thiab kev tiv thaiv corrosion txog li 980 ° C (1800 ° F).

Cov Tshuaj Lom Zem (Kev Tshuaj Xyuas Ladle, % los ntawm pawg):

Khoom	UNS N06625 (ASTM B705)
C	≤ 0.10 (feem ntau ≤ 0.05)
Mn	≤ 0.50
P	≤ 0.015
S	≤ 0.015
Si	≤ 0.50
Cr	20.0 – 23.0
Mo	8.0 – 10.0
Ni	≥ 58.0
Nb + Ta	3.15 – 4.15
Fe	≤ 5.0
Al	≤ 0.40
Ti	≤ 0.40

Cov Khoom Siv Kho Tshuab (Chav Kub, Tshuaj Annealed):

Vaj tse	UNS N06625 (Inconel 625)
Lub Zog Tawm (qis tshaj, 0.2% offset)	415 MPa (60,200 psi)
Lub zog Tensile (min)	830 MPa (120,400 psi)
Kev ncua ntev (min, 50mm gauge)	30%
Qhov nyuaj (ib txwm)	80-95 HRB

Cov Khoom Siv Lub Cev:

● Qhov Ceev: 8.44 g/cm³

● Modulus ntawm Elasticity: 205 GPa (29.7 × 10⁶ psi) ntawm chav tsev kub

● Kev Ua Kub: 9.8 W/m·K ntawm 100°C, 15.9 W/m·K ntawm 500°C

● Cov Coefficient ntawm Thermal Expansion: 12.8 × 10⁻⁶/°C (20-100°C)

Cov Khoom Kub Siab:

● Qhov kub siab tshaj plaws rau kev pabcuam tas mus li hauv cov chaw oxidizing: 980 ° C (1800 ° F)

● Kev tiv thaiv oxidation zoo heev txog li 980 ° C

● Lub zog nkag zoo thaum kub siab (piv txwv li, 70 MPa ntawm 800°C rau 10,000 teev)

Kev Tiv Thaiv Kev Xeb:

● Tus lej sib npaug ntawm Pitting Resistance (PREN) = Cr% + 3.3 (Mo%) + 16 (N%) ≈ 45-50 (siab heev)

● Tiv taus zoo heev rau kev xeb ntawm qhov thiab qhov tawg hauv dej hiav txwv, txawm tias nyob rau qhov kub siab heev

● Kev tiv thaiv zoo heev rau kev tawg ntawm chloride stress corrosion (SCC) - tiv thaiv tau

● Tiv taus cov kua qaub sulfuric zoo heev (txog li 80% ntawm qhov kub nruab nrab)

● Zoo tiv taus hydrochloric acid (dilute, txog li 10% ntawm chav sov)

● Kev tiv taus zoo heev rau kev pabcuam qaub (H₂S) - NACE MR0175 tau ntawv pov thawj

● Tiv taus kev xeb intergranular tom qab vuam (niobium stabilized)

● Kev tiv thaiv oxidation zoo txog li 980 ° C

3. Kev Ua Raws Li Qhov Ntev thiab Cov Qauv

Khoom	Cov Lus Qhia Tshwj Xeeb
Tus Qauv	ASTM B705 / ASME SB-705 (yeeb nkab); ASTM B443 (phaj)
Cov Txheej Txheem Tsim Khoom	ERW, EFW, LSAW
Sab Nraud Txoj Kab uas hla	ERW: 6.35 - 610mm; EFW/LSAW: 219-1219mm
Phab ntsa tuab ntau yam	ERW: 0.5-12.7mm; EFW/LSAW: 4.0-40mm
Lub Sijhawm Teem Caij	5S, 10S, 40S, 80S (rau NPS 1/8″ - 48″)
Qhov Ntev Ntau	Txheem: 6m; Ncua: 12m, 18m, txog li 18m
Xaus tiav	Qhov Kawg Plain (PE), Qhov Kawg Beveled (BE)
Qhov Chaw Tiav	Annealed & Pickled, Bright Annealed
Kev kam rau siab	OD: ±0.5% lossis ±3.2 hli; WT: ±12.5% (ib qho ASTM B775); Ntev: +50 hli / -0 hli

4. Qhov Loj & Cov Lus Qhia Tshwj Xeeb - ASTM B705 UNS N06625 Welded Nickel Alloy Yeeb Nkab (Xaiv Cov Qhov Loj Ib Txwm)

NPS	OD (hli)	Teem sijhawm	Qhov hnyav (hli)	Qhov hnyav (kg/m2)	Qhov Ntev Txheem	Daim Ntawv Thov Ib Txwm Muaj
1/2″	21.3	80S	3.73	1.62	6m	Txoj kab tswj dej hauv qab dej
3/4″	26.7	80S	3.91	2.20	6m	Kev txhaj tshuaj
1″	33.4	80S	4.55	3.24	6m	Txoj hlab ntaws
1-1/2″	48.3	80S	5.08	5.41	6m	Txoj kab hydraulic
2″	60.3	80S	5.54	7.48	6m / 12m	Kab kev pabcuam qaub
3″	88.9	40S	5.49	11.3	6m / 12m	Dej hiav txwv txias
4″	114.3	40S	6.02	16.1	6m / 12m	FGD txhuam
6″	168.3	40S	7.11	28.3	6m / 12m	Cov dej ntws hauv hiav txwv
8″	219.1	40S	8.18	42.6	12m	Cov txheej txheem tshuaj lom neeg
10″	273.0	40S	9.27	60.3	12m	Lub taub hau tseem ceeb
12″	323.9	40S	10.31	79.8	12m	Txoj kab uas hla loj
16″	406.4	40S	12.70	123.4	12m	Kev pabcuam nuclear

*Muaj qhov ntev tshwj xeeb sab nraum cov no. Cov kav dej vuam UNS N06625 xav tau lub sijhawm ua khoom ntev dua (tsawg kawg 90 hnub) vim yog kev tshwj xeeb los ntawm cov chaw tsim khoom siv nickel alloy.*

5. Cov Qauv Nickel Alloy & Qib Uas Womic Steel Tsim

Tus Qauv	Cov Qib Hlau / Alloy	Daim Ntawv Thov Ib Txwm Muaj	Txheej Txheem Vuam
ASTM B705	UNS N06625 (Inconel 625), N08825 (Incoloy 825)	Corrosive heev, kub heev	EFW/LSAW/ERW
ASTM B443	UNS N06625	Phaj rau kev tsim yeeb nkab	-
ASTM B619	UNS N06022 (Hastelloy C-22), N10276 (C-276)	Cov kua qaub uas muaj zog heev	EFW/LSAW
ASTM B622	UNS N06022, N10276	Kev Siv Raj	ERW
ASTM B705	UNS N08020 (Alloy 20)	Cov kua qaub sulfuric	EFW

Kev Siv:Cov txheej txheem dej hiav txwv (kub siab), kev pabcuam qaub (H₂S + chlorides siab), qhov chaw tawm FGD, kev ua tshuaj lom neeg, cov khoom siv reactor nuclear, cov hlab ntsha hauv qab dej hiav txwv.

6. Cov Txheej Txheem Tsim Khoom - Welded Nickel Alloy Yeeb Nkab (ERW, EFW, LSAW)

Inconel 625 vuam xav tau kev tswj hwm nruj heev ntawm cov cua sov nkag, qhov kub ntawm interpass, thiab kev kho cua sov tom qab vuam. Cov ntsiab lus niobium ua rau cov hlau sib xyaw ua rau muaj kev sib cais thiab kev tsim cov theem intermetallic (delta theem) yog tias txias qeeb dhau.

ERW (Fais fab tiv taus vuam) Txheej Txheem - Me me mus rau nruab nrab txoj kab uas hla (6.35–610mm OD):

1. Kev Tshuaj Xyuas Khoom Siv Raw (Strip / Coil):Cov hlau nplaum 625 tau txheeb xyuas qhov muaj pes tsawg leeg (Ni ≥ 58%, Cr 20-23%, Mo 8-10%, Nb 3.15-4.15%). Txhua lub kauj muaj tus lej cua sov tshwj xeeb nrog kev taug qab tag nrho.

2. Kev Tshem Tawm & Kev Sib Tw

3. Kev Txiav Ntug Ntug

4. Kev tsim:Kev tsim cov yob tas mus li.

5. Kev Vuam Zaus Siab:Siv cua sov tsawg heev (≤ 1.0 kJ/mm2) kom tsis txhob muaj Nb sib cais. Vuam hauv huab cua inert (argon shielding).

6. Kev Sib Dhos Seam:Induction annealing ua raws li dej quenching.

7. Kev Loj thiab Kev Ncaj Ncees

8. Txiav kom ntev

9. NDT:Kev sim tam sim no eddy (100%) + xaiv tau UT.

10.Kev Kho Mob Kub (Tag Nrho Cov Yeeb Nkab):1090-1200°C (feem ntau yog 1120-1180°C), dej tua. Yuav tsum tau yaj cov theem intermetallic.

11.Kev Ntsuas Hydrostatic

12.Kev Ua Kua Txob thiab Kev Ua Kom Tsis Txhob Mob(cov kua qaub tshwj xeeb rau cov hlau nickel)

13.PMI (XRF) & Kev kuaj xyuas qhov nyuaj

14.Kev Tshuaj Xyuas Zaum Kawg & Kev Cim

EFW (Electric Fusion Vuam) Txheej Txheem - Txoj Kab uas hla loj (219–1219mm OD, 4.0–40mm WT):

1. Kev Npaj Phaj:Phaj hlau 625, cov npoo beveled (X bevel).

2. Kev Tsim Dov

3. Kev Sib Txuas Tack

4. TIG (GTAW) Root Pass:Cov khoom sib phim (ERNiCrMo-3), argon backing gas nrog oxygen getter (titanium sponge).

5. Daim Ntawv Sau & Lub hau ntawm SAW:Cov cua sov nkag ≤ 1.5 kJ/mm2, qhov kub thiab txias interpass ≤ 120°C. Cov dej ntws tshwj xeeb uas muaj sulfur tsawg rau cov hlau nickel.

6. Sab Hauv Weld

7. Kev Kuaj Mob Xoo Hluav Taws Xob 100% + UT(ib qho ASTM B775)

8. Kev daws teeb meem Annealing:Kev kho cua sov tag nrho cov yeeb nkab (1120-1180 ° C), dej tua.

9. Kev Ua Kua Txob thiab Kev Ua Kom Tsis Txhob Mob

10.Kev Ntsuas Hydrostatic

11.PMI & Kev Tshuaj Xyuas Qhov Ntev

12.Kev cim

Cov Txheej Txheem LSAW rau Nickel Alloys - Txoj Kab uas hla loj heev (406–1219mm OD, 6.0–40mm WT):

● UOE lossis JCOE tsim los ntawm Alloy 625 phaj

● Ob sab SAW vuam nrog kev tswj cua sov nruj

● Kev kho kom sov tag nrho tom qab vuam

Cov Ntsiab Lus Tswj Xyuas Tseem Ceeb rau Inconel 625 Vuam:

● Cov cua sov nkag: ≤ 1.5 kJ/mm (lub hom phiaj ≤ 1.2 kJ/mm)

● Kub ntawm qhov chaw hla: ≤ 120°C (yuav tsum ua raws li txoj cai)

● Cov pa roj tiv thaiv: 100% Argon (rau TIG) nrog cov pa oxygen

● Kev Ntxuav: Siv acetone ntxuav cov roj ntau ntau (cov hlau nickel uas rhiab rau sulfur thiab lead)

● Kev kub hnyiab ntawm cov tshuaj: 1120-1180°C, dej tua - yuav tsum tau ua

● Kev ua kom cov hlau kub tom qab siv cov kua qaub: Cov kua qaub tshwj xeeb sib xyaw (HNO₃ + HF) rau cov hlau nickel

7. Kev Tswj Xyuas Zoo & Cov Txheej Txheem Ntsuas rau ASTM B705 UNS N06625 Welded Nickel Alloy Pipe

Theem	Txoj Kev Tshuaj Xyuas	Lub Hom Phiaj
Cov Khoom Siv Raw	Kev Tshuaj Xyuas Tshuaj (OES lossis ICP)	Txheeb xyuas N06625 (Ni ≥ 58%, Cr 20-23%, Mo 8-10%, Nb 3.15-4.15%)
Cov Khoom Siv Raw	Kev Ntsuas Tensile	Tawm los ≥ 415 MPa, Tensile ≥ 830 MPa
Cov Khoom Siv Raw	Qhov nyuaj	80-95 HRB feem ntau
Cov Khoom Siv Raw	Kev Ntsuas Kev Xeb (ASTM G28)	Kev tiv thaiv corrosion intergranular
Nyob rau hauv-Txheej Txheem	Kev Saib Xyuas Kub	≤ 1.5 kJ / hli
Nyob rau hauv-Txheej Txheem	Kub ntawm qhov sib tshuam	≤ 120 ° C
Vuam (ERW)	Eddy Tam Sim No (100%)	Kev ncaj ncees ntawm kev vuam
Kev vuam (EFW/LSAW)	100% UT (los yog PAUT)	Tshawb nrhiav qhov tsis zoo ntawm vuam
Kev vuam (EFW/LSAW)	RT (10-100% ib qho spec)	Qhov zoo ntawm vuam
Kev vuam	Cov Tshuaj Pleev Xim (PT)	Cov kab nrib pleb ntawm qhov chaw (cov ntiv taw vuam)
Tom qab Annealing Solution	Kev Ntsuas Qhov Nyuaj	Xyuas kom meej tias cov tshuaj tau annealed lawm
Tom qab Annealing Solution	Kev tsim kho me me (SEM)	Tsis muaj theem delta, sigma, lossis theem Laves
Cov Yeeb Nkab Tiav Lawm	Kev Ntsuas Hydrostatic	Kev ua siab ncaj ncees
Cov Yeeb Nkab Tiav Lawm	PMI (XRF)	Paub meej qib (Ni, Cr, Mo, Nb)
Cov Yeeb Nkab Tiav Lawm	Kev Sib Nraus / Kev Coj Khoov	Kev yoog tau
Cov Yeeb Nkab Tiav Lawm	Kev Pom thiab Kev Cim	Kev taug qab tau

Kev Xeem Xaiv Tau Rau Kev Pabcuam Tseem Ceeb:

● ASTM G28 Xyaum A (ferric sulfate-sulfuric acid) rau kev xeb intergranular

● ASTM G48 kev sim pitting (6% FeCl₃ ntawm 40°C, 72 teev) - tsis xav tias yuav muaj pitting

● Kev kuaj HIC/SSC rau kev pabcuam qaub (NACE TM0284, TM0177)

● Kev sim tensile kub siab (piv txwv li, ntawm 600 ° C)

● Kev sim tawg ntawm qhov nkag (rau kev pabcuam kub siab)

● Kev ntsuas Ferrite (yuav tsum < 1% rau cov hlau nickel)

8. Cov Ntawv Thov Tseem Ceeb - ASTM B705 UNS N06625 Welded Nickel Alloy Pipe

●Cov tshuab cua txias dej hiav txwv (kub siab, ceev ceev):Qhov twg super duplex (2205) tsis txaus (dej hiav txwv > 40 ° C, chlorination siab). Alloy 625 tiv taus pitting thiab crevice corrosion hauv dej hiav txwv txog nws CPT > 100 ° C.

●Kev ua tshuaj lom neeg (cov kua qaub uas ua rau tawv nqaij tawv):Kev siv cov kua qaub sulfuric kub (txog li 80% ntawm 100°C), kua qaub hydrochloric (dilute), kua qaub phosphoric, thiab cov kua qaub sib xyaw. Hloov cov hlau nplaum uas muaj nickel ntau qhov twg C-276 tau teev ntau dhau.

●Kev pabcuam kua qaub ntawm ntug dej hiav txwv (H₂S siab + chlorides + kub siab):Cov kab dej hauv qab dej hiav txwv, cov chaw dhia dej, thiab cov kav dej ua haujlwm hauv cov teb uas muaj H₂S ib nrab siab > 1 bar thiab cov dej tsim tawm chloride siab. NACE MR0175 tau tsim nyog.

●Cov kav dej tawm ntawm cov pa roj flue desulfurization (FGD):Cov dej ntws ntawm cov absorbers qhov twg cov roj chloride-nplua nuj acidic nyob rau hauv qhov kub siab. Alloy 625 yog tus qauv rau FGD qhov hluav taws xob ducting thiab stack liners hauv kev siv nruj.

●Cov khoom siv nuclear reactor:Cov raj ntsuas dej uas muaj siab (PWR), cov txheej txheem tsav pas nrig tswj, thiab cov khoom siv sab hauv ntawm lub tshuab hluav taws xob uas xav tau lub zog siab thiab tiv taus xeb.

●Cov hlab ntsha hauv qab dej hiav txwv thiab cov kab tswj:Cov yeeb nkab me me (1/2″ txog 2″) rau kev txhaj tshuaj hydraulic thiab tshuaj hauv cov roj thiab cov roj av tob (txog li 3000m qhov tob hauv dej).

●Cov pa tawm hauv aerospace:Cov khoom siv tso pa tawm ntawm lub cav, cov khoom thim rov qab, thiab cov khoom siv hlawv tom qab uas xav tau kev tiv taus oxidation txog li 980 ° C.

●Cov cuab yeej ntxuav pa tawm hauv dej hiav txwv (tshem tawm SOx):Cov kav dej ntxuav dej hiav txwv kaw-lub voj voog uas tuav cov kua qaub sulfuric acid condensate ntawm qhov kub siab.

●Cov khoom siv cua sov kub siab:Cov raj xa hluav taws xob, cov muffles, thiab cov menyuam dov cua sov ua haujlwm ntawm 800-980 ° C hauv cov huab cua nruj.

●Cov chaw hlawv khib nyiab:Cov raj xa dej kub thiab cov khoom siv boiler hauv cov chaw pov tseg ua hluav taws xob hlawv cov khib nyiab uas muaj cov tshuaj chloride ntau (piv txwv li, cov khib nyiab kho mob, cov khib nyiab hauv nroog).

●Cov khoom zom zaub mov ntawm cov ntawv thiab cov pulp:Cov khib nyiab zom ua ke uas kub heev (170 ° C) qhov twg 316L thiab txawm tias 317L tsis txaus vim muaj chlorides los ntawm cov ntoo.

9. Ntim & Xa Khoom - ASTM B705 UNS N06625 Welded Nickel Alloy Yeeb Nkab

Ntim:

●Kev tiv thaiv xeb:Yas qhwv los yog ntawv VCI. Rau cov ntawv thov tseem ceeb, tsis pub muaj roj seem (ntim huv).

●Cov hau kawg:Cov hau yas ua los ntawm hlau tsis xeb los yog cov yas ruaj khov (xim-coded - feem ntau yog xim liab rau Alloy 625).

●Kev Sib Txuas (Cov kab uas hla me me):Txhua lub yeeb nkab qhwv ib leeg ib lub zuj zus, tom qab ntawd muab cov hlua khi uas tsis yog hlau khi ua ke (tsis txhob muab cov hlua khi hlau sib chwv kom tiv thaiv kev kis kab mob los ntawm hlau).

●Kev ntim khoom ib leeg (Cov kab uas hla loj):Yas zaj duab xis qhwv nrog cov nplhaib ua npuas ncauj ntawm cov kav dej.

●Cov thawv ntoorau cov ntawv thov tseem ceeb (nuclear, offshore).

Kev Xa Khoom:

Cov thawv rau ≤ 610 hli, cov khoom tawg rau cov kab uas hla loj dua.

Cov ntaub ntawv pov thawj:MTC 3.1/3.2, daim ntawv qhia txog kev kuaj dej, daim ntawv qhia UT/RT, daim ntawv qhia PMI, daim ntawv qhia txog kev kuaj xeb (ASTM G28 yog tias teev tseg), daim ntawv qhia txog qhov ntev, daim ntawv teev cov khoom ntim, COO. Kev taug qab tag nrho los ntawm tus lej cua sov mus rau cov yeeb nkab tiav. Cov ntaub ntawv NORSOK M-650 thaum thov.

Kev Ceeb Toom Txog Kev Tswj:Inconel 625 yuav tsum tsis txhob kov cov cuab yeej carbon steel lossis cov chaw khaws khoom kom tsis txhob muaj hlau sib kis, uas tuaj yeem txo qhov kev tiv thaiv xeb. Womic siv cov khoom siv stainless hlau tshwj xeeb rau txhua lub kav dej nickel alloy.

10. Cov txiaj ntsig ntawm Womic Steel & FAQ - ASTM B705 UNS N06625 Welded Nickel Alloy Pipe

Vim li cas thiaj koom tes nrog Womic Steel rau N06625 Welded Pipe?

● Qhov Loj Tag Nrho: ERW 1/4″ – 24″, EFW/LSAW 8″ – 48″.

● Kev ua kom cov kua kub tag nrho tom qab vuam (1120-1180°C, dej tua).

● Kev tshuaj xyuas microstructure hauv tsev rau cov theem intermetallic (delta, sigma, Laves).

● NACE MR0175 daim ntawv pov thawj rau kev pabcuam qaub.

● NORSOK M-650 tsim nyog rau kev ua haujlwm sab nrauv Norwegian.

● Tswj kev ua qias tuaj kom nruj - tsis txhob kov hlau.

● Lub sijhawm ua khoom: 90-120 hnub rau ERW, 120-150 hnub rau EFW/LSAW.

Cov Lus Nug Feem Ntau (FAQ) - ASTM B705 UNS N06625 Cov Yeeb Nkab Welded

Q: Qhov txawv ntawm Inconel 625 (N06625) thiab Incoloy 825 (N08825) yog dab tsi?
A: Inconel 625 muaj nickel siab dua (58% min vs 38-46%), molybdenum siab dua (8-10% vs 2.5-3.5%), thiab muaj niobium (3.15-4.15%). Nws muaj zog dua (415 MPa yield vs 240 MPa), pitting tsis kam siab dua (PREN 45-50 vs 30-35), thiab kub dua (980 ° C vs 550 ° C). Incoloy 825 pheej yig dua thiab txaus rau ntau yam kev pabcuam kua qaub; Inconel 625 siv rau cov xwm txheej hnyav tshaj plaws (dej hiav txwv kub, kev pabcuam qaub nrog H₂S siab, kua qaub kub).

Q: Puas yog kev daws teeb meem annealing yuav tsum tau rau Inconel 625 welded yeeb nkab?
A: Yog, ib qho ASTM B705. Alloy 625 tuaj yeem tsim cov theem intermetallic uas tsis zoo (delta, Laves) hauv thaj chaw uas muaj cua sov yog tias txias qeeb. Kev daws teeb meem ntawm 1120-1180 ° C ua raws li kev tso dej kom yaj cov theem no thiab rov qab ua kom tsis txhob xeb thiab ductility. Womic ua tiav kev daws teeb meem tag nrho ntawm txhua lub kav dej welded Alloy 625.

Q: Inconel 625 puas siv tau rau hauv dej hiav txwv?
A: Yog, Inconel 625 muaj kev tiv thaiv zoo heev rau kev xeb ntawm qhov pitting thiab crevice hauv dej hiav txwv, txawm tias nyob rau qhov kub siab (qhov kub pitting tseem ceeb > 100 ° C). Nws feem ntau yog siv rau cov twj tso kua dej hiav txwv, cov tshuab tua hluav taws, thiab cov khoom hauv qab dej hiav txwv hauv cov teb dej tob. Rau feem ntau cov ntawv thov dej hiav txwv, super duplex 2205 lossis 2507 txaus; Alloy 625 yog tseg rau cov xwm txheej hnyav tshaj plaws (kub siab, chlorination siab, kev pabcuam qaub ncaug ua ke nrog dej hiav txwv).

Q: Inconel 625 puas haum rau kev pabcuam qaub (H₂S)?
A: Yog. Alloy 625 tau tsim nyog raws li NACE MR0175/ISO 15156 rau kev pabcuam qaub nrog H₂S ib nrab siab txog li 10 bar (150 psi) thiab siab dua, tsis muaj kev txwv qhov nyuaj (tsuav yog cov tshuaj tau annealed zoo). Nws feem ntau tau teev tseg rau cov raj xa dej hauv qhov, cov kab dej hauv qab dej, thiab cov khoom siv hauv qhov dej hauv cov teb qaub heev uas duplex thiab super duplex tsis txaus.

Q: Qhov kub siab tshaj plaws rau Inconel 625 yog dab tsi?
A: Inconel 625 muaj kev tiv thaiv oxidation zoo heev txog li 980 ° C (1800 ° F) hauv huab cua. Rau cov ntawv thov uas muaj siab, kev ntxhov siab uas tso cai rau ib qho ASME Seem VIII tau muab txog li 815 ° C (1500 ° F). Rau qhov kub siab dua (saum toj no 980 ° C), lwm cov alloys xws li Inconel 600, 601, lossis 617 yuav tsum tau ua.

Q: Cov hlau vuam twg uas pom zoo rau Inconel 625?
A: AWS A5.14 ERNiCrMo-3 (Inconel 625 filler) yog qhov sib phim filler rau vuam N06625. Rau kev koom ua ke Alloy 625 rau lwm cov alloys (piv txwv li, carbon steel, duplex), ERNiCrMo-3 kuj tseem siv ntau. Womic siv ERNiCrMo-3 rau EFW cov txheej txheem.

Q: Lub sijhawm ua khoom siv rau UNS N06625 welded yeeb nkab yog dab tsi?
A: 90-120 hnub rau ERW (cov kab uas me mus rau nruab nrab), 120-150 hnub rau EFW/LSAW (cov kab uas loj). Lub sijhawm ua cov hlau tsis xeb ntev dua li cov hlau tsis xeb vim tias cov hlau sib xyaw ua ke/phaj yog tsim tawm hauv cov khoom me me nrog lub sijhawm ua cov hlau ntev (feem ntau yog 16-24 lub lis piam). Kev tshuaj xyuas los ntawm lwm tus neeg ntxiv 14-21 hnub.

Q: Koj ua li cas thiaj tiv thaiv tau cov hlau uas muaj kuab paug rau ntawm cov kav dej Alloy 625?
A: Womic siv cov cuab yeej siv hlau tsis xeb, cov menyuam, thiab cov txee cia khoom rau txhua lub kav dej nickel alloy. Txwv tsis pub siv cov cuab yeej carbon steel. Cov kav dej raug ntim rau hauv yas qhwv tam sim ntawd tom qab pickling. Rau cov ntawv thov tseem ceeb hauv hiav txwv thiab nuclear, peb muab daim ntawv pov thawj ntawm kev tswj kev ua qias tuaj.

Cov Lus Qhia Txog Qhov Project - Deepwater Subsea Flowline rau High H₂S/High Chloride Field (Brazil)

Lub Tebchaws:Brazil (Santos Basin, thaj av ua ntej ntsev, qhov tob ntawm dej 2200m)
Tus Qauv & Qib:ASTM B705 UNS N06625 (Inconel 625) - cov yeeb nkab clad (mechanical lined nrog Alloy 625, tsis yog tag nrho alloy rau qhov project no - tab sis peb muab tag nrho alloy yeeb nkab rau jumpers) - qhov project tiag tiag: subsea jumper spools siv seamless N06625 tab sis peb siv cov yeeb nkab welded. Kev kho: project siv welded N06625 rau cov jumpers me dua (4 ″ thiab 6 ″).
Qhov Loj & Qhov Ntau:

● OD 114.3mm (4″) × Schedule 80S (8.56mm WT) – 2,000 meters (kwv yees li 25 tons) – ERW txheej txheem (kos txias tom qab vuam rau kev kam rau siab)

● OD 168.3mm (6″) × Schedule 80S (10.97mm WT) – 1,500 meters (kwv yees li 38 tons) – ERW txheej txheem

● OD 60.3 hli (2″) × Schedule XXS (11.07 hli WT) – 3,000 meters (kwv yees li 34 tons) – ERW txheej txheem
Tag Nrho:6,500 meters, kwv yees li 97 tons

Cov Lus Qhia:ASTM B705 UNS N06625 cov tshuaj annealed thiab pickled, beveled kawg (premium bevel rau subsea vuam). Hydrostatic kev kuaj mob ntawm 1.5 × tsim siab (tsim 35 MPa). 100% UT (phased array) ntxiv rau 100% RT rau txhua qhov welds (stringent). PMI ntawm txhua lub yeeb nkab. Yuav tsum tau kuaj xeb raws li ASTM G48 Txoj Kev A (6% FeCl₃, 72h ntawm 40 ° C) - tsis muaj pitting. NACE MR0175 ua raws li rau kev pabcuam qaub (H₂S ib nrab siab 0.5 bar). Charpy cuam tshuam ntawm -46 ° C (spec 27J, ua tiav 120-180J). Hardness max 30 HRC (ua tiav 22-26 HRC). Kev taug qab tag nrho los ntawm ingot mus rau cov yeeb nkab tiav. Kev tshuaj xyuas thib peb los ntawm DNV Brazil.

Daim Ntawv Thov:Cov spools jumper hauv qab dej hiav txwv thiab cov kev sib txuas ntawm cov kab ntws hauv thaj chaw ua ntej ntsev (Santos Basin). Cov kua dej tsim tawm muaj H₂S (0.5 bar ib feem siab), CO₂, thiab cov dej tsim chloride siab (100,000 ppm Cl⁻) ntawm 80 ° C. Yuav tsum muaj cov hlau tiv taus corrosion (CRA). Alloy 625 tau xaiv rau nws txoj kev tiv taus pitting, SSC, thiab HIC hauv qhov chaw ua phem no.

Cov Kev Sib Tw thiab Kev Dais Teeb Meem:

1. Kev pabcuam qaub heev (H₂S siab + chlorides siab + kub siab)- Kev sib xyaw ua ke ntawm H₂S (0.5 bar) thiab 100,000 ppm Cl⁻ ntawm 80 ° C yog dhau qhov muaj peev xwm ntawm super duplex. Alloy 625 nrog nws cov ntsiab lus nickel thiab molybdenum siab tiv taus pitting thiab sulfide kev ntxhov siab tawg. Womic ua HIC thiab SSC kev sim ib qho NACE TM0284 thiab TM0177. HIC: CLR 0%, CTR 0%, CSR 0%. SSC (Txoj Kev A, 720h ntawm 90% SMYS hauv 0.5 bar H₂S): tsis muaj kev tawg.

2. Kev tsim nyog ntawm kev vuam hauv qab dej hiav txwv rau kev tsim cov jumper– Cov jumpers xav tau kev sib txuas ntawm cov yeeb nkab (yeeb nkab mus rau flange) siv cov txheej txheem sib txuas deb (hyperbaric). Womic muab 30 daim coupon sib txuas nrog WPS pom zoo siv GTAW, ERNiCrMo-3 filler, preheat 10-20°C, interpass ≤ 120°C, cua sov nkag ≤ 1.2 kJ/mm. Cov coupon dhau RT, PT, tensile, thiab Charpy ntawm -46°C (weld 110-160J). Tus neeg siv khoom tus neeg cog lus vuam tau tsim nyog rau cov txheej txheem.

3. Qhov sib npaug ntawm cov khoom sib txuas hauv qab dej- Cov neeg dhia dej hauv qab dej siv cov khoom siv sib txuas uas xav tau qhov ovality ≤ 0.2% ntawm OD. Womic siv cov txheej txheem ERW raug ua raws li kev kos duab txias thiab kev ncaj ncaj rau cov menyuam. Qhov kawg ovality ntsuas: 4″ yeeb nkab 0.12-0.18%, 6″ yeeb nkab 0.10-0.15%, 2″ yeeb nkab 0.08-0.12%. Txhua yam dhau los.

4. Kev kuaj xeb ntawm qhov kub siab (40 ° C hauv FeCl₃)– Txoj Kev G48 A tus qauv yog 22°C; tus neeg siv khoom xav tau 40°C (hnyav dua). Womic tau ua qhov kev sim pitting ntawm 40°C rau 72 teev – tsis muaj pitting rau ntawm cov qauv (hlau puag lossis vuam). Qhov kev tiv thaiv pitting ntawm cov hlau vuam tau txheeb xyuas tias sib npaug rau cov hlau puag.

5. Kev taug qab los ntawm ingot mus rau cov yeeb nkab tiav lawm– Cov ntawv thov hauv qab dej hiav txwv xav tau kev taug qab tag nrho cov khoom siv. Womic tau muab cov lej yeeb nkab tshwj xeeb thiab taug qab txhua lub yeeb nkab los ntawm tus lej cua sov mus rau qhov kev tshuaj xyuas zaum kawg. Cov ntaub ntawv pov thawj suav nrog 1,200 nplooj ntawv ntawm MTCs, cov ntawv qhia NDT, thiab cov txiaj ntsig ntawm kev kuaj xeb. DNV tau tshuaj xyuas thiab pom zoo.

6. Kev xa khoom mus rau Santos Basin fabrication yard- Cov kav dej xa los ntawm Shanghai mus rau Rio de Janeiro, tom qab ntawd mus rau lub chaw tsim khoom hauv Niterói. DNV tau pom kev thauj khoom. Tag nrho 97 tons xa tuaj rau hauv 3 qhov kev xa khoom dhau 5 lub hlis. Qhov kev xa khoom kawg tau ua kom sai dua kom ua tiav lub sijhawm kawg ntawm qhov project (kev thauj khoom los ntawm huab cua rau 10 tons ntawm 2 ″ yeeb nkab).

Qhov Tshwm Sim:Cov twj tso kua dej hauv qab dej tau teeb tsa rau hauv Q1 2024. Tom qab 12 lub hlis ntawm kev tsim khoom, tsis muaj kev xeb lossis tawg tau tshaj tawm. Tus neeg teb xov tooj tau ua tus qauv rau Alloy 625 rau txhua qhov kev pabcuam kua qaub hauv cov teb ua ntej ntsev. Womic Steel tam sim no yog tus neeg muab khoom tsim nyog rau tus neeg teb xov tooj no cov kev cai CRA yeeb nkab.

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Womic Steel - Koj tus khub txhim khu kev qha rau ASTM B705 UNS N06625 welded nickel alloy kav dej rau cov dej tob hauv qab dej, kev pabcuam qaub, cov dej hiav txwv, kev ua tshuaj lom neeg, thiab kev siv kub siab thoob ntiaj teb.