Paipu Alloy Nickel Welded ASTM B705 UNS N06625 (Inconel 625): Nā Hiki Hana a me nā Kikoʻī Huahana

Wehewehe Pōkole:

Hoʻolako ʻo Womic Steel i ka paipu nickel alloy ASTM B705 UNS N06625 (Inconel 625) i hoʻopaʻa ʻia no nā wahi corrosive a me nā mahana kiʻekiʻe loa. Hāʻawi ʻo Alloy 625 i ke kūpaʻa kūikawā i ka pitting, crevice corrosion, a me ka stress corrosion cracking i ka chloride a me ka lawelawe ʻawaʻawa, i hui pū ʻia me ka ikaika kiʻekiʻe (ikaika hua 415 MPa / 60,200 psi) a me ke kūpaʻa oxidation maikaʻi loa a hiki i 980°C. Loaʻa i ka alloy ka nickel (58% min), chromium (20-23%), molybdenum (8-10%), a me niobium (3.15-4.15%), e hāʻawi ana i ka hana maikaʻi loa i ka wai kai, nā waikawa, a me nā kinoea wela kiʻekiʻe. Hoʻokomo pū ka hana ʻana iā ERW no nā diameters liʻiliʻi a me EFW no nā diameters nui, me ka komo piha a me ka annealing solution post-weld. ʻO ke anawaena waho mai 6.35mm a i 610mm (1/4″ - 24″) no ERW; a hiki i ka 1219mm (48″) no EFW/LSAW, mānoanoa o ka paia 0.5mm - 40mm, lōʻihi maʻamau a hiki i ka 12m, maʻamau a hiki i ka 18m. Palapala hōʻoia wili, hydrotest, 100% UT, hoʻopau ʻia ka hopena annealed a me ka pickled, loaʻa nā wēlau beveled a i ʻole maʻemaʻe. Kūpono no nā ʻōnaehana hoʻoluʻu wai kai (mahana kiʻekiʻe), ka hana kemika (nā waikawa hoʻonāukiuki), ka lawelawe ʻawaʻawa ma waho (H₂S kiʻekiʻe + chlorides), flue gas desulfurization (FGD), nā reactors nukelea, nā ʻāpana aerospace, a me nā umbilicals subsea.

Ka nui o ka paipu nikala i hoʻopaʻa ʻia:Anawaena o waho: 6.35mm – 1,219mm (1/4″ – 48″), Mānoanoa o ka paia: 0.5mm – 40mm (Papa Hana 5S, 10S, 40S, 80S), Loa: 6m – 12m maʻamau, lōʻihi maʻamau a hiki i ka 18m

Kūlana & Papa o ka Paipu Alloy Nickel Welded:ASTM B705 (pipe) / ASTM B443 (pā) UNS N06625; a me ASME SB-705; E like me Inconel 625; Werkstoff 2.4856; EN 2.4856

Ka hoʻohana ʻana o ka Welded Nickel Alloy Pipe:Nā ʻōnaehana hoʻoluʻu wai kai (wela kiʻekiʻe, wikiwiki kiʻekiʻe), hana kemika (sulfuric, hydrochloric, phosphoric acids), lawelawe ʻawaʻawa ma waho o ke kai (H₂S kiʻekiʻe, chlorides kiʻekiʻe, wela kiʻekiʻe), nā ʻauwai hoʻopuka hoʻoheheʻe kinoea flue (FGD), nā ʻāpana reactor nukelea (nā reactors wai i hoʻopaʻa ʻia), nā umbilicals subsea a me nā laina kaohi, nā ʻōnaehana hoʻopau aerospace, nā mea holoi hoʻopau kai, nā ʻāpana umu wela kiʻekiʻe (a hiki i 980°C), nā hale hana puhi ʻōpala, nā mea hoʻoheheʻe pulp a me ka pepa (wela kiʻekiʻe, chloride kiʻekiʻe), nā paipu hana ʻaila a me ke kinoea (nā lua wai ʻawaʻawa)

Ke hāʻawi nei ʻo Womic Steel i nā kumukūʻai kiʻekiʻe a me nā kumukūʻai hoʻokūkū o ka paipu nickel alloy ASTM B705 UNS N06625 i hoʻopaʻa ʻia, ka paipu Inconel 625 i hoʻopaʻa ʻia, ka paipu nickel alloy ERW, ka paipu nickel alloy EFW, ka paipu CRA, ka paipu pale i ka palaho wela kiʻekiʻe. Palapala hōʻoia wili EN 10204 3.1/3.2, hoʻāʻo hydro, UT, hoʻonā annealed, nā wēlau beveled/plain, loaʻa ka hoʻopau pickled. Hoʻolako pololei ka hale hana no nā papahana ʻoihana ma waho o ke kai, kemika, nukelea, a me nā papahana ʻoihana wela kiʻekiʻe ma ka honua holoʻokoʻa.

E leka uila mai iā mākou Nā kikoʻī huahana

Nā kikoʻī huahana

Nā Lepili Huahana

1. Womic Steel: Nā Mana Hana a me ka Ikaika o ka ʻOihana

He mea hana mua ʻo Womic Steel Group a he mea hoʻopuka honua me ka ʻoi aku o 20 mau makahiki o ka ʻike loea i ka hana ʻana i nā paipu alloy kū i ka corrosion (CRA) me nā alloys nickel. Hoʻohana kā mākou hale hana hana paipu welded UNS N06625 (Inconel 625) i nā ʻenehana wiliwili holomua me ka kaohi koʻikoʻi o ka hoʻokomo wela a me ka mālama wela ma hope o ka wili ʻana:

●Laina ERW (Kuʻihao Kū'ē Uila):No nā anawaena mai 6.35mm a i 610mm (1/4″ - 24″), ʻo ka mānoanoa o ka paia mai 0.5mm a i 12.7mm. ʻO ka hoʻoheheʻe alapine kiʻekiʻe me ka hoʻokomo wela haʻahaʻa loa (≤ 1.0 kJ/mm) e pale aku i ka hoʻokaʻawale ʻana o ka niobium a me ka hoʻokumu ʻana o ka pae intermetallic. Kūpono no nā paipu Alloy 625 liʻiliʻi a waena no nā umbilicals subsea a me nā mea hana.

●Ka Laina EFW (Hoʻohui Uila Uila):No nā anawaena mai 219mm a i 1219mm (8″ - 48″), ʻo ka mānoanoa o ka paia mai 4.0mm a i 40mm. ʻO ke ala aʻa TIG (GTAW) me nā ala hoʻopiha SAW, me ka hoʻohana ʻana i ka metala hoʻopihapiha kūlike (ERNiCrMo-3) a me ke kinoea kākoʻo argon me ka mea hoʻopili oxygen.

●Ka Laina LSAW / SAWL no nā Nickel Alloys:No nā anawaena mai 406mm a i 1219mm (16″ - 48″), ʻo ka mānoanoa o ka paia a hiki i 40mm. Hoʻoheheʻe ʻia ʻana o ka arc i hoʻoluʻu ʻia o nā papa nickel alloy i ʻōwili ʻia me ka hoʻokomo wela i kāohi ʻia (≤ 1.5 kJ/mm) a me ka mahana interpass ≤ 120°C.

Hoʻomaʻamaʻa ʻia nā paipu Inconel 625 āpau i hoʻopili ʻia i ka hopena annealing (lawe wela) ma 1090-1200°C a ukali ʻia e ka quenching wai e hoʻoheheʻe i nā pae intermetallic (e laʻa, sigma, delta) a hoʻihoʻi i ke kūpaʻa ʻana i ka corrosion a me ka ductility, a ukali ʻia e ka pickling a me ka passivation.

Nā Palapala Hōʻoia Kūlana a me ka Hoʻokō ʻana i nā Hoʻoponopono:

● Hōʻoia ʻia ʻo ISO 9001:2015

● PED 2014/68/EU (CE Marking) no nā lako hana kaomi

● EN 10204 3.2 Palapala hōʻoia me ka hōʻoia ʻaoʻao ʻekolu (TÜV, BV, SGS, LR)

● Nānā ʻAoʻao ʻEkolu (TPI) i ʻāpono ʻia e SGS, BV, ABS, DNV, TÜV

● NACE MR0175 / ISO 15156 no ka lawelawe ʻawaʻawa (H₂S)

● ASME Boiler and Pressure Vessel Code (Māhele VIII, Div. 1) ma ke noi ʻana

● NORSOK M-650 (ma ke noi no waho)

Hoʻolako ʻo Womic Steel i nā paipu i hoʻopili ʻia ʻo Inconel 625 i nā ʻāina he 30 a ʻoi ma nā ʻoihana kai, kemika, nukelea, a me nā ʻoihana aerospace.

Ka Hoʻololi Hana:

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

● EFW: 219–1219mm OD × 4.0–40mm WT × ≤ 12m (ʻoi aku ka lōʻihi ma ke noi ʻana)

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

● Nā koho hoʻopau: Hoʻomoʻa ʻia a hoʻomoʻa ʻia, hoʻomoʻa ʻia me ka ʻālohilohi (no nā paipu liʻiliʻi)

2. ASTM B705 UNS N06625: Nā ʻano hana a me nā ʻano hana

ʻO UNS N06625 (Inconel 625) kahi hui nickel-chromium-molybdenum me ka hoʻohui niobium. Hāʻawi ka nui o ka nickel i ke kūpaʻa maikaʻi loa i ka haki ʻana o ka chloride stress corrosion; hāʻawi ka chromium i ke kūpaʻa oxidation; hāʻawi ka molybdenum a me ka niobium i ke kūpaʻa pitting a me ka hoʻoikaika ʻana i ka hopena paʻa. Mālama ka Alloy 625 i ka ikaika kiʻekiʻe a me ke kūpaʻa corrosion a hiki i 980°C (1800°F).

ʻAno Kemika (Loiloi Ladle, % ma ke kaumaha):

ʻElemene	UNS N06625 (ASTM B705)
C	≤ 0.10 (maʻamau ≤ 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

Nā Waiwai Mechanical (Mahana o ka Lumi, Hoʻoheheʻe ʻia ka Solution):

Waiwai	UNS N06625 (Inconel 625)
Ka Ikaika Hua (minimum, 0.2% offset)	415 MPa (60,200 psi)
Ikaika Hoʻopaʻa (min)	830 MPa (120,400 psi)
Elongation (min, 50mm anakahi)	30%
Paʻakikī (maʻamau)	80-95 HRB

Nā Waiwai Kino:

● Ka nui o ke kaumaha: 8.44 g/cm³

● Modulus o ka Elasticity: 205 GPa (29.7 × 10⁶ psi) ma ka mahana o ka lumi

● Ka Hoʻokele Wela: 9.8 W/m·K ma 100°C, 15.9 W/m·K ma 500°C

● Ka helu o ka hoʻonui wela: 12.8 × 10⁻⁶/°C (20-100°C)

Nā Waiwai Mahana Kiʻekiʻe:

● Ka mahana lawelawe mau loa ma nā wahi oxidizing: 980°C (1800°F)

● Kū'ē maikaʻi loa i ka oxidation a hiki i 980°C

● Ikaika kolo maikaʻi i nā mahana kiʻekiʻe (e laʻa, 70 MPa ma 800°C no 10,000 hola)

Ke kū'ē ʻana i ka palaho:

● Helu Kūlike o ke Kū'ē Pitting (PREN) = Cr% + 3.3(Mo%) + 16(N%) ≈ 45-50 (kiʻekiʻe loa)

● Kūpaʻa maikaʻi loa i ka pala o ka lua a me ka crevice i loko o ka wai kai, ʻoiai i nā mahana kiʻekiʻe

● Ke kūpaʻa koʻikoʻi i ka haki ʻana o ka chloride stress corrosion (SCC) - pale ʻole

● Kū'ē maikaʻi loa i ka waikawa sulfuric (a hiki i ka 80% ma nā mahana kūpono)

● Kū'ē maikaʻi i ka waikawa hydrochloric (hoʻoheheʻe ʻia, a hiki i ka 10% ma ka mahana o ka lumi)

● Kū'ē maika'i loa i ka lawelawe 'awa'awa (H₂S) - kūpono iā NACE MR0175

● Kūpaʻa i ka pala intergranular ma hope o ka hoʻopili ʻana (niobium stabilized)

● Kū'ē maikaʻi i ka oxidation a hiki i 980°C

3. Ka laulā Ana a me ka hoʻokō ʻana i nā kūlana

Mea	Nā kikoʻī
Kūlana Maʻamau	ASTM B705 / ASME SB-705 (paipu); ASTM B443 (pā)
Nā Kaʻina Hana Hana	ERW, EFW, LSAW
Ka laulā o ke anawaena o waho	ERW: 6.35 – 610mm; EFW/LSAW: 219 – 1219mm
Pae Mānoanoa o ka Paia	ERW: 0.5 – 12.7mm; EFW/LSAW: 4.0 – 40mm
Pae Hoʻonohonoho	5S, 10S, 40S, 80S (no NPS 1/8″ – 48″)
Ka laulā lōʻihi	Kūlana: 6m; Hoʻolōʻihi ʻia: 12m, 18m, a hiki i 18m
Hoʻopau i ka hoʻopau ʻana	Wāhi Maʻemaʻe (PE), Wāhi Beveled (BE)
Hoʻopau ʻili	Hoʻopaʻa ʻia a hoʻomoʻa ʻia, Hoʻopaʻa ʻia me ka ʻōlinolino
Nā hoʻomanawanui	OD: ±0.5% a i ʻole ±3.2mm; WT: ±12.5% (no ASTM B775); Lōʻihi: +50mm / -0mm

4. Nā Ana a me nā Kikoʻī i Loaʻa - ASTM B705 UNS N06625 Welded Nickel Alloy Pipe (Nā Nui Maʻamau i Koho ʻia)

NPS	OD (mm)	Papa kuhikuhi	Paona (mm)	Kaumaha (kg/m)	Lōʻihi Maʻamau	Hoʻohana Maʻamau
1/2″	21.3	80S	3.73	1.62	6m	Ka laina hoʻomalu o lalo o ka moana
3/4″	26.7	80S	3.91	2.20	6m	Hoʻokomo kemika
1″	33.4	80S	4.55	3.24	6m	ʻŌmole umbilical
1-1/2″	48.3	80S	5.08	5.41	6m	Laina hydraulic
2″	60.3	80S	5.54	7.48	6m / 12m	Laina lawelawe ʻawaʻawa
3″	88.9	40S	5.49	11.3	6m / 12m	Hoʻomaʻalili wai kai
4″	114.3	40S	6.02	16.1	6m / 12m	Mea holoi FGD
6″	168.3	40S	7.11	28.3	6m / 12m	Ka laina kahe ma waho o ke kai
8″	219.1	40S	8.18	42.6	12m	Kaʻina hana kemika
10″	273.0	40S	9.27	60.3	12m	Poʻomanaʻo nui
12″	323.9	40S	10.31	79.8	12m	Anawaena nui
16″	406.4	40S	12.70	123.4	12m	ʻOihana nukelea

*Loaʻa nā ana maʻamau ma waho o kēia mau pae. Pono nā paipu i hoʻopaʻa ʻia ʻo UNS N06625 i nā manawa alakaʻi lōʻihi (ʻo ka liʻiliʻi he 90 mau lā) ma muli o ke kumu kūʻai ʻana o ka strip/plate kūikawā mai nā wili nickel alloy i hōʻoia ʻia.*

5. Nā Kūlana & Papa o ka Nickel Alloy maʻamau i hana ʻia e Womic Steel

Kūlana Maʻamau	Nā Papa Kila / Alloy	Hoʻohana Maʻamau	Kaʻina Hana Kuʻihao
ASTM B705	UNS N06625 (Inconel 625), N08825 (Incoloy 825)	ʻAi loa ka ʻino, wela kiʻekiʻe	EFW/LSAW/ERW
ASTM B443	UNS N06625	Papa no ka hana ʻana i nā paipu	-
ASTM B619	UNS N06022 (Hastelloy C-22), N10276 (C-276)	Nā waikawa ikaika loa	EFW/LSAW
ASTM B622	UNS N06022, N10276	Paipu	ERW
ASTM B705	UNS N08020 (Mea hoʻohuihui 20)	ʻAkika sulfuric	EFW

Hoʻohana:Nā ʻōnaehana wai kai (wela kiʻekiʻe), lawelawe ʻawaʻawa (H₂S + chlorides kiʻekiʻe), nā puka FGD, ka hana kemika, nā ʻāpana reactor nukelea, nā umbilicals subsea.

6. Kaʻina Hana Hana - Paipu Alloy Nickel i Welded ʻia (ERW, EFW, LSAW)

Pono ka hoʻopili ʻana o Inconel 625 i ka mana paʻa loa o ka hoʻokomo wela, ka mahana interpass, a me ka mālama wela ma hope o ka hoʻopili ʻana. ʻO ka ʻike niobium e hoʻolilo i ka alloy i mea maʻalahi i ka hoʻokaʻawale ʻana a me ka hoʻokumu ʻana o ka pae intermetallic (pae delta) inā lohi loa ka hoʻomaʻalili ʻana.

Kaʻina Hana ERW (Hoʻopaʻa Kū'ē Uila) - Anawaena Liʻiliʻi a Waena (6.35–610mm OD):

1. Nānā ʻana i nā mea maka (Strip/Coil):Ua hōʻoia ʻia ka ʻāpana Alloy 625 no ka haku mele ʻana (Ni ≥ 58%, Cr 20-23%, Mo 8-10%, Nb 3.15-4.15%). Loaʻa i kēlā me kēia wili ka helu wela kū hoʻokahi me ka hiki ke hahai piha ʻia.

2. Ke wehe ʻana a me ka hoʻohaʻahaʻa ʻana

3. ʻOki ʻana i ka lihi o ke kaha

4. Ke hoʻokumu nei:Hoʻomau ʻana i ka hoʻokumu ʻōwili.

5. Kuʻihao Alapine Kiʻekiʻe:Hoʻokomo wela haʻahaʻa loa (≤ 1.0 kJ/mm) e pale aku i ka hoʻokaʻawale ʻana o Nb. Kuʻihao ʻana i ka lewa inert (pale argon).

6. Hoʻopili ʻana i ka humuhumu:Hoʻoheheʻe ʻia ka induction a ukali ʻia e ka hoʻopio ʻana o ka wai.

7. Ka nui a me ka hoʻopololei ʻana

8. ʻOki ʻana i ka lōʻihi

9. NDT:Hoʻāʻo au Eddy (100%) + UT koho.

10.Hoʻoheheʻe ʻana i ka hopena (Paipu piha):1090-1200°C (maʻamau 1120-1180°C), hoʻopau ʻia ka wai. Pono no ka hoʻoheheʻe ʻana i nā pae intermetallic.

11.Hoʻāʻo Hydrostatic

12.Hoʻopaʻakai a me ka Passivation(hui waikawa kūikawā no nā mea hoʻohui nickel)

13.PMI (XRF) & Nānā paʻakikī

14.Nānā Hope Loa & Māka

Kaʻina Hana EFW (Electric Fusion Welding) - Anawaena Nui (219–1219mm OD, 4.0–40mm WT):

1. Ka Hoʻomākaukau ʻana i ka Pā:Papa hao 625, nā kihi i hoʻokaʻawale ʻia (X bevel).

2. Hoʻokumu ʻōwili

3. Kuʻihao Tack

4. Ka Huakaʻi Aʻa TIG (GTAW):Mea hoʻopihapiha kūlike (ERNiCrMo-3), kinoea kākoʻo argon me ka mea hoʻopili oxygen (huʻahuʻa titanium).

5. Nā Palapala Hoʻopiha & Kāpena SAW:Hoʻokomo wela ≤ 1.5 kJ/mm, mahana interpass ≤ 120°C. ʻO ke kahe haʻahaʻa sulfur kūikawā no nā mea hoʻohui nickel.

6. Weld kūloko

7. 100% Hoʻāʻo Radiographic + UT(e like me ASTM B775)

8. Hoʻoheheʻe ʻana i ka hopena:Ka mālama wela piha ʻana o ka paipu (1120-1180°C), ka wai e hoʻopau ai.

9. Hoʻopaʻakai a me ka Passivation

10.Hoʻāʻo Hydrostatic

11.Nānā PMI a me ka Ana

12.Māka ʻana

Kaʻina Hana LSAW no nā Nickel Alloys - Anawaena Nui Loa (406–1219mm OD, 6.0–40mm WT):

● UOE a i ʻole JCOE e hana ana mai ka pā Alloy 625

● Kuʻihao SAW ʻaoʻao pālua me ka kaohi hoʻokomo wela koʻikoʻi

● Hoʻoheheʻe piha ʻana ma hope o ka hoʻoheheʻe ʻana

Nā Mana Mana Koʻikoʻi no ka Inconel 625 Welding:

● Hoʻokomo wela: ≤ 1.5 kJ/mm (pahuhopu ≤ 1.2 kJ/mm)

● Mahana waena: ≤ 120°C (ua hoʻokō pono ʻia)

● Kinoea pale: 100% Argon (no TIG) me ka mea hoʻopaʻa oxygen

● Hoʻomaʻemaʻe: Hoʻomaʻemaʻe ikaika me ka acetone (nā mea nickel i pili i ka sulfur a me ke kēpau)

● Hoʻoheheʻe ʻana i ka hopena: 1120-1180°C, hoʻopau wai - koi ʻia

● Hoʻomoʻa ʻana ma hope o ka hoʻoheheʻe ʻana: Hoʻohuihui waikawa kūikawā (HNO₃ + HF) no nā mea hoʻohui nickel

7. Nā Kaʻina Hana Mana a me ka Hoʻāʻo ʻana no ka Paipu Alloy Nickel Welded ASTM B705 UNS N06625

Kahua	ʻAno Nānā	Kumu
Mea Maka	Ka Nānā Kemika (OES a i ʻole ICP)	E hōʻoia i ka N06625 (Ni ≥ 58%, Cr 20-23%, Mo 8-10%, Nb 3.15-4.15%)
Mea Maka	Hoʻāʻo ʻana i ka Tensile	Hua ≥ 415 MPa, Tensile ≥ 830 MPa
Mea Maka	Paʻakikī	80-95 HRB maʻamau
Mea Maka	Hoʻāʻo ʻana i ka palaho (ASTM G28)	Ke kū'ē'ē'ana o ka palaho intergranular
Ke Kaʻina Hana Nei	Ka Nānā ʻana i ka Hoʻokomo Wela	≤ 1.5 kJ/mm
Ke Kaʻina Hana Nei	Mahana Ma waena o ke ala	≤ 120°C
Weld (ERW)	Au Eddy (100%)	Ka pono o ka wili ʻana
Weld (EFW/LSAW)	100% UT (a i ʻole PAUT)	ʻIke i nā hemahema o ka wili ʻana
Weld (EFW/LSAW)	RT (10-100% no kēlā me kēia kikoʻī)	Ka maikaʻi o ka hoʻoheheʻe ʻana
Hoʻopili	Ka Mea Hoʻokomo i ka Waihoʻoluʻu (PT)	Nā māwae ʻili (nā manamana wāwae wili)
Ma hope o ka hoʻoheheʻe ʻana o ka hopena	Hoʻāʻo Paʻakikī	E hōʻoia i ke kūlana o ka hoʻoheheʻe ʻia ʻana o ka hopena
Ma hope o ka hoʻoheheʻe ʻana o ka hopena	ʻAno liʻiliʻi (SEM)	ʻAʻohe pae delta, sigma, a i ʻole ka pae Laves
Paipu i hoʻopau ʻia	Hoʻāʻo Hydrostatic	Ka kūpaʻa o ke kaomi
Paipu i hoʻopau ʻia	PMI (XRF)	E hōʻoia i ka māka (Ni, Cr, Mo, Nb)
Paipu i hoʻopau ʻia	Hoʻopālahalaha / Piʻo Alakaʻi	Ka maʻalahi
Paipu i hoʻopau ʻia	ʻIke & Māka	Ka hiki ke hahai ʻia

Nā Hoʻāʻo Koho no ka Lawelawe Koʻikoʻi:

● ASTM G28 Hoʻomaʻamaʻa A (ferric sulfate-sulfuric acid) no ka pala intergranular

● Hoʻāʻo lua ASTM G48 (6% FeCl₃ ma 40°C, 72h) - ʻaʻohe lua i manaʻo ʻia

● Hoʻāʻo HIC/SSC no ka lawelawe ʻawaʻawa (NACE TM0284, TM0177)

● Hoʻāʻo tensile mahana kiʻekiʻe (e laʻa, ma 600°C)

● Hoʻāʻo haki kolo (no ka lawelawe wela kiʻekiʻe)

● Ana Ferrite (pono e < 1% no nā mea hoʻohui nickel)

8. Nā Hoʻohana Mua - ASTM B705 UNS N06625 Paipu Alloy Nickel Welded

●Nā ʻōnaehana hoʻoluʻu wai kai (wela kiʻekiʻe, wikiwiki kiʻekiʻe):Ma kahi i lawa ʻole ai ka super duplex (2205) (wai kai > 40°C, chlorination kiʻekiʻe). Kūʻē ka Alloy 625 i ka pitting a me ka crevice corrosion i loko o ka wai kai a hiki i kona CPT > 100°C.

●Ka hana kemika (nā waikawa hoʻonāukiuki):Ka lawelawe ʻana i ka waikawa sulfuric wela (a hiki i 80% ma 100°C), ka waikawa hydrochloric (dilute), ka waikawa phosphoric, a me nā waikawa i hui pū ʻia. Hoʻololi i nā mea hoʻohuihui nickel kiʻekiʻe kahi i kuhikuhi nui ʻia ai ʻo C-276.

●ʻO ka lawelawe ʻawaʻawa ma waho o ke kai (H₂S kiʻekiʻe + chlorides + mahana kiʻekiʻe):ʻO nā laina kahe o lalo o ka moana, nā mea lele, a me nā paipu hana ma nā kahua me nā kaomi hapa H₂S > 1 bar a me ka wai i hana ʻia me ka chloride kiʻekiʻe. Ua kūpono ʻo NACE MR0175.

●Nā ʻauwaha hoʻopuka hoʻoheheʻe kinoea flue (FGD):I lalo o nā mea hoʻomoʻa kahi e loaʻa ai nā kinoea waikawa momona chloride i nā mahana kiʻekiʻe. ʻO Alloy 625 ke kūlana maʻamau no ka ducting puka FGD a me nā liner stack i nā noi ikaika.

●Nā ʻāpana mea hana nukelea:Nā paipu mea hana reactor wai paʻa (PWR), nā ʻano hana hoʻokele koʻokoʻo hoʻokele, a me nā mea o loko o ka reactor kahi e pono ai ka ikaika kiʻekiʻe a me ke kūpaʻa i ka pala.

●Nā umbilicals subsea a me nā laina kaohi:ʻO nā paipu liʻiliʻi ke anawaena (1/2″ a 2″) no ka hoʻokomo hydraulic a me ke kemika i nā kahua aila a me ke kinoea wai hohonu (a hiki i ka hohonu o ka wai 3000m).

●Nā ʻōnaehana hoʻopau mokulele:Nā ʻāpana hoʻopau ʻenekini, nā mea hoʻohuli thrust, a me nā ʻāpana afterburner e pono ai ke kūpaʻa oxidation a hiki i 980°C.

●Nā mea holoi ʻōpala kai (wehe ʻana i ka SOx):ʻO nā paipu holoi wai kai pani ʻia e lawelawe ana i ka sulfuric acid condensate ma nā mahana kiʻekiʻe.

●Nā ʻāpana umu wela kiʻekiʻe:ʻO nā paipu hoʻomālamalama, nā muffles, a me nā wili umu e hana ana ma 800-980°C i nā lewa huhū.

●Nā hale hana puhi ʻōpala:ʻO nā paipu superheater a me nā ʻāpana paila i loko o nā hale hana ʻōpala-i-ka ikehu e puhi ana i nā ʻōpala chloride kiʻekiʻe (e like me nā ʻōpala lapaʻau, nā ʻōpala paʻa o ke kūlanakauhale).

●Nā mea hoʻoheheʻe pulp a me ka pepa:Nā mīkini hoʻoheheʻe pūʻulu wela kiʻekiʻe (170°C) kahi i lawa ʻole ai ʻo 316L a me 317L paha ma muli o nā chloride mai nā ʻano lāʻau.

9. Hoʻopili a me ka hoʻouna ʻana - ASTM B705 UNS N06625 Paipu Alloy Nickel Welded

Pūʻolo:

●Ka palekana anti-corrosion:ʻUhi palakiko a pepa VCI paha. No nā noi koʻikoʻi, ʻaʻole ʻae ʻia ke koena aila (ʻūpā maʻemaʻe).

●Nā pāpale hope:Nā pāpale kila kila a i ʻole nā pāpale palaki hana kaumaha (kālai kala - ʻulaʻula maʻamau no Alloy 625).

●Hoʻopili ʻana (Nā anawaena liʻiliʻi):Ua ʻōwili pākahi ʻia kēlā me kēia paipu, a laila ua hoʻopili ʻia me nā kaula hao ʻole (e pale i ka hoʻopili ʻana i ke kaula kila e pale ai i ka haumia hao).

●Nā ʻūpā pākahi (Nui ke anawaena):ʻUhi ʻili plastik me nā apo huʻa ma waena o nā paipu.

●Nā pahu lāʻauno nā noi koʻikoʻi (nukelekila, ma waho o ke kai).

Hoʻouna ʻana:

Nā ipu no ≤ 610mm, haki-nui no nā anawaena nui aʻe.

Palapala:MTC 3.1/3.2, hōʻike hydrotest, nā hōʻike UT/RT, hōʻike PMI, hōʻike hoʻāʻo palaho (ASTM G28 inā i kuhikuhi ʻia), hōʻike dimensional, papa inoa hoʻopili, COO. Loaʻa piha mai ka helu wela a i ka paipu i hoʻopau ʻia. ʻO ka waihona NORSOK M-650 ma ke noi.

ʻŌlelo Aʻo no ka lawelawe ʻana:ʻAʻole pono e hoʻopili ʻo Inconel 625 me nā mea hana kila kalapona a i ʻole nā ʻili mālama e pale aku i ka haumia hao, hiki ke hōʻemi i ke kūpaʻa ʻana i ka pala. Hoʻohana ʻo Womic i nā lako hana kila kila i hoʻolaʻa ʻia no nā paipu nickel alloy āpau.

10. Nā Pōmaikaʻi o ke kila Womic & FAQ - ASTM B705 UNS N06625 Welded Nickel Alloy Pipe

No ke aha e hui pū ai me Womic Steel no ka paipu welded N06625?

● Ka laulā nui piha: ERW 1/4″ – 24″, EFW/LSAW 8″ – 48″.

● Hoʻoheheʻe piha ʻana i ka hopena ma hope o ka hoʻopili ʻana (1120-1180°C, hoʻopau wai).

● Ka hoʻokolokolo ʻana i nā microstructure i loko o ka hale no nā pae intermetallic (delta, sigma, Laves).

● Palapala hōʻoia NACE MR0175 no ka lawelawe ʻawaʻawa.

● Ua kūpono ʻo NORSOK M-650 no ka ʻāpana Norewai waho.

● Kaohi pono ʻana i ka haumia - ʻaʻohe pili hao.

● Nā manawa alakaʻi: 90-120 mau lā no ERW, 120-150 mau lā no EFW/LSAW.

Nā Nīnau i Nīnau Pinepine ʻia (FAQ) - ASTM B705 UNS N06625 Paipu Welded

Q: He aha ka ʻokoʻa ma waena o Inconel 625 (N06625) a me Incoloy 825 (N08825)?
A: ʻOi aku ka kiʻekiʻe o ka nickel o Inconel 625 (58% min vs 38-46%), ʻoi aku ka nui o ka molybdenum (8-10% vs 2.5-3.5%), a loaʻa iā ia ka niobium (3.15-4.15%). Loaʻa iā ia ka ikaika kiʻekiʻe loa (415 MPa yield vs 240 MPa), ʻoi aku ka kiʻekiʻe o ke kū'ē ʻana i ka pitting (PREN 45-50 vs 30-35), a ʻoi aku ka kiʻekiʻe o ka hiki ke wela (980°C vs 550°C). ʻOi aku ka hoʻokele waiwai o Incoloy 825 a lawa no nā lawelawe waikawa he nui; Hoʻohana ʻia ʻo Inconel 625 no nā kūlana koʻikoʻi loa (ka wai kai wela kiʻekiʻe, ka lawelawe ʻawaʻawa me ka H₂S kiʻekiʻe, nā waikawa wela kiʻekiʻe).

Q: He mea koi anei ka hoʻoheheʻe ʻana i ka hopena no ka paipu welded Inconel 625?
A: ʻAe, e like me ASTM B705. Hiki i ka Alloy 625 ke hana i nā pae intermetallic deleterious (delta, Laves) ma ka ʻāpana i hoʻopilikia ʻia e ka wela inā lohi ka hoʻomaʻalili ʻana. ʻO ka hoʻoheheʻe ʻana i ka hopena ma 1120-1180°C a ukali ʻia e ka hoʻopau ʻana i ka wai e hoʻoheheʻe i kēia mau pae a hoʻihoʻi i ke kūpaʻa ʻana i ka pala a me ka ductility. Hana ʻo Womic i ka hoʻoheheʻe ʻana i ka hopena piha ma nā paipu Alloy 625 āpau i hoʻopaʻa ʻia.

Q: Hiki ke hoʻohana ʻia ʻo Inconel 625 i loko o ka wai kai?
A: ʻAe, loaʻa iā Inconel 625 ke kūpaʻa maikaʻi loa i ka pala o ka lua a me ka crevice i loko o ka wai kai, ʻoiai ma nā mahana kiʻekiʻe (mahana lua koʻikoʻi > 100°C). Hoʻohana pinepine ʻia no nā pamu hāpai wai kai, nā ʻōnaehana wai ahi, a me nā ʻāpana subsea i nā kahua wai hohonu. No ka hapa nui o nā noi wai kai, ua lawa ka super duplex 2205 a i ʻole 2507; Ua mālama ʻia ʻo Alloy 625 no nā kūlana ʻino loa (wela kiʻekiʻe, chlorination kiʻekiʻe, lawelawe ʻawaʻawa i hui pū ʻia me ka wai kai).

Q: He kūpono anei ʻo Inconel 625 no ka lawelawe ʻawaʻawa (H₂S)?
A: ʻAe. Ua kūpono ʻo Alloy 625 e like me NACE MR0175/ISO 15156 no ka lawelawe ʻawaʻawa me nā kaomi hapa H₂S a hiki i ka 10 bar (150 psi) a ʻoi aku, me ka ʻole o nā palena paʻakikī (inā hoʻomoʻa pono ʻia ka hopena). Hoʻākāka pinepine ʻia no nā paipu downhole, nā laina kahe subsea, a me nā ʻāpana wellhead i nā kahua ʻawaʻawa loa kahi i lawa ʻole ai ka duplex a me ka super duplex.

Q: He aha ka mahana lawelawe kiʻekiʻe loa no Inconel 625?
A: Loaʻa iā Inconel 625 ke kūpaʻa maikaʻi loa i ka oxidation a hiki i 980°C (1800°F) i ka lewa. No nā noi e loaʻa ana ke kaomi, ua hāʻawi ʻia nā kaumaha i ʻae ʻia e like me ka ASME Section VIII a hiki i 815°C (1500°F). No nā mahana kiʻekiʻe (ma luna o 980°C), pono paha nā mea hoʻohui ʻē aʻe e like me Inconel 600, 601, a i ʻole 617.

Q: He aha ka metala hoʻopihapiha wili i ʻōlelo ʻia no Inconel 625?
A: ʻO AWS A5.14 ERNiCrMo-3 (Inconel 625 filler) ka mea hoʻopihapiha kūpono no ka wili ʻana iā N06625. No ka hoʻohui ʻana i ka Alloy 625 i nā alloys ʻē aʻe (e laʻa, ke kila kalapona, duplex), hoʻohana pinepine ʻia ʻo ERNiCrMo-3. Hoʻohana ʻo Womic iā ERNiCrMo-3 no nā kaʻina hana EFW.

Q: He aha ka manawa alakaʻi maʻamau no ka paipu welded UNS N06625?
A: 90-120 mau lā no ERW (nā anawaena liʻiliʻi a waena), 120-150 mau lā no EFW/LSAW (nā anawaena nui). ʻOi aku ka lōʻihi o nā manawa alakaʻi ma mua o nā kila kila no ka mea ua hana ʻia ka ʻāpana/papa alloy i nā nui liʻiliʻi me nā manawa alakaʻi wili lōʻihi (pinepine 16-24 mau pule). Hoʻohui ka nānā ʻana o ke kolu o ka ʻaoʻao i 14-21 mau lā.

Q: Pehea ʻoe e pale ai i ka haumia hao ma nā paipu Alloy 625?
A: Hoʻohana ʻo Womic i nā mea hana hana kila kila i hoʻolaʻa ʻia, nā wili, a me nā ʻūlū mālama no nā paipu nickel alloy āpau. Kapu nā mea hana kila kalapona. Hoʻopili ʻia nā paipu i loko o ka ʻōwili plastik ma hope koke o ka pickling. No nā noi koʻikoʻi ma waho a me nā noi nukelea, hāʻawi mākou i ka palapala hōʻoia o ka kaohi haumia.

Kuhikuhi Papahana - Deepwater Subsea Flowline no ke kahua H₂S kiʻekiʻe/High Chloride (Brazil)

ʻĀina:Palakila (Ke kīʻaha ʻo Santos, kahua paʻakai ma mua o ka paʻakai, hohonu wai 2200m)
Kūlana & Papa:ASTM B705 UNS N06625 (Inconel 625) - paipu i uhi ʻia (mechanical i hoʻopaʻa ʻia me ka Alloy 625, ʻaʻole ka alloy piha no kēia papahana - akā hāʻawi mākou i ka paipu alloy piha no nā jumpers) - papahana maoli: nā spool jumper subsea e hoʻohana ana i ka N06625 seamless akā kuhikuhi mākou i ka paipu welded. Hoʻoponopono: hoʻohana ka papahana i ka N06625 welded no nā jumpers anawaena liʻiliʻi (4″ a me 6″).
Nā Ana a me ka Nui:

● OD 114.3mm (4″) × Papa Kuhikuhi 80S (8.56mm WT) – 2,000 mika (ma kahi o 25 tons) – Kaʻina hana ERW (huki anu ʻia ma hope o ka hoʻoheheʻe ʻana no ka hoʻomanawanui paʻa)

● OD 168.3mm (6″) × Papa Kuhikuhi 80S (10.97mm WT) – 1,500 mika (ma kahi o 38 tons) – kaʻina hana ERW

● OD 60.3mm (2″) × Papa Kuhikuhi XXS (11.07mm WT) – 3,000 mika (ma kahi o 34 tons) – kaʻina hana ERW
Huina:6,500 mika, ma kahi o 97 tone

Nā kikoʻī:ʻO ka hoʻonā ASTM B705 UNS N06625 i hoʻomoʻa ʻia a hoʻomoʻa ʻia, nā wēlau beveled (bevel premium no ka hoʻoheheʻe ʻana i lalo o ka moana). Hoʻāʻo hydrostatic ma 1.5 × kaomi hoʻolālā (hoʻolālā 35 MPa). 100% UT (phased array) me 100% RT no nā hoʻoheheʻe āpau (stringent). PMI ma kēlā me kēia paipu. Hoʻāʻo corrosion mandatory e like me ASTM G48 Method A (6% FeCl₃, 72h ma 40°C) - ʻaʻohe pitting. Hoʻokō ʻo NACE MR0175 no ka lawelawe ʻawaʻawa (H₂S partial pressure 0.5 bar). Ka hopena Charpy ma -46°C (spec 27J, i hoʻokō ʻia 120-180J). Paʻakikī max 30 HRC (i hoʻokō ʻia 22-26 HRC). Loaʻa piha mai ka ingot a i ka paipu i hoʻopau ʻia. Nānā ʻaoʻao ʻekolu e DNV Brazil.

Noi:ʻO nā spool jumper subsea a me nā pilina flowline ma kahi kahua pre-salt (Santos Basin). Loaʻa i ka wai i hana ʻia ka H₂S (0.5 bar partial pressure), CO₂, a me ka wai hoʻokumu chloride kiʻekiʻe (100,000 ppm Cl⁻) ma 80°C. Pono ka corrosion resistant alloy (CRA). Ua koho ʻia ka Alloy 625 no kona kūpaʻa ʻana i ka pitting, SSC, a me HIC ma kēia ʻano hoʻonāukiuki.

Nā Pilikia ʻenehana a me nā Hoʻonā:

1. Ka lawelawe ʻawaʻawa loa (H₂S kiʻekiʻe + chlorides kiʻekiʻe + mahana kiʻekiʻe)– ʻO ka hui pū ʻana o H₂S (0.5 bar) a me 100,000 ppm Cl⁻ ma 80°C ʻaʻole ia ma mua o ka hiki o ka super duplex. ʻO ka Alloy 625 me kona ʻike nickel a me molybdenum kiʻekiʻe e kūʻē i ka pitting a me ka sulfide stress cracking. Ua hana ʻo Womic i ka hoʻāʻo HIC a me SSC e like me NACE TM0284 a me TM0177. HIC: CLR 0%, CTR 0%, CSR 0%. SSC (Method A, 720h ma 90% SMYS ma 0.5 bar H₂S): ʻaʻohe haki.

2. Ka hōʻoia ʻana o ka hoʻoheheʻe ʻana ma lalo o ka moana no ka hana ʻana o ka jumper– Pono nā mea lele i nā wili kahua (paipu i ka flange) me ka hoʻohana ʻana i nā ʻano hana wili mamao (hyperbaric). Ua hāʻawi ʻo Womic i 30 mau kūpona wili me ka WPS i ʻōlelo ʻia me ka hoʻohana ʻana iā GTAW, ERNiCrMo-3 filler, preheat 10-20°C, interpass ≤ 120°C, hoʻokomo wela ≤ 1.2 kJ/mm. Ua hala nā kūpona iā RT, PT, tensile, a me Charpy ma -46°C (weld 110-160J). Ua kūpono ka mea hana wili a ka mea kūʻai aku i ke kaʻina hana.

3. ʻOvality paʻa no nā mea hoʻohui subsea– Hoʻohana nā mea lele moana i nā mea hoʻohui mechanical e pono ai ka ovality ≤ 0.2% o OD. Ua hoʻohana ʻo Womic i ke kaʻina hana ERW pololei a ukali ʻia e ke kahakiʻi anu a me ka hoʻopololei ʻana i ka wili. ʻO ka ovality hope loa i ana ʻia: paipu 4″ 0.12-0.18%, paipu 6″ 0.10-0.15%, paipu 2″ 0.08-0.12%. Ua hala nā mea āpau.

4. Hoʻāʻo ʻana i ka palaho ma ka mahana kiʻekiʻe (40°C ma FeCl₃)– ʻO ke kūlana maʻamau o ke ʻano hana G48 ʻo 22°C; koi ka mea kūʻai aku i 40°C (ʻoi aku ka koʻikoʻi). Ua hana ʻo Womic i ka hoʻāʻo ʻana i ka lua ma 40°C no 72h – ʻaʻohe lua ma kekahi laʻana (metala kumu a i ʻole weld). Ua hōʻoia ʻia ke kūpaʻa lua o ka metala weld e like me ka metala kumu.

5. Ka hiki ke hahai ʻia mai ka ingot a i ka paipu i hoʻopau ʻia– Pono nā noi subsea i ka hiki ke hahai piha i nā mea. Ua hāʻawi ʻo Womic i nā helu paipu kūikawā a ua nānā i kēlā me kēia paipu mai ka helu wela a hiki i ka nānā hope loa. Ua hoʻokomo pū ʻia ka pūʻolo palapala i 1,200 ʻaoʻao o MTCs, nā hōʻike NDT, a me nā hopena hoʻāʻo pala. Ua nānā ʻia a ʻāpono ʻia ʻo DNV.

6. Nā hana hoʻokele i ka pā hana ʻana o Santos Basin– Ua hoʻouna ʻia nā paipu mai Shanghai a i Rio de Janeiro, a laila i kahi pā hana ma Niterói. Ua ʻike ʻo DNV i ka hoʻouka ʻana. Ua hāʻawi ʻia nā 97 tons a pau i 3 mau hoʻouna ma luna o 5 mau mahina. Ua wikiwiki ʻia ka hoʻouna hope loa e hoʻokō i ka lā palena o ka papahana (uku ea no 10 tons o ka paipu 2″).

Hopena:Ua hoʻokomo ʻia nā mea lele ma lalo o ka moana i ka hapaha mua o 2024. Ma hope o 12 mau mahina o ka hana ʻana, ʻaʻohe hōʻike ʻia o ka pala a i ʻole ka nahā ʻana. Ua hoʻohālikelike ka mea hoʻohana ma Alloy 625 no nā mea lele lawelawe ʻawaʻawa āpau ma nā kahua pre-salt. ʻO Womic Steel i kēia manawa he mea hoʻolako kūpono no nā koi paipu CRA o kēia mea hoʻohana.

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Womic Steel - ʻO kāu hoa hilinaʻi no nā paipu nickel alloy i hoʻopili ʻia a ASTM B705 UNS N06625 no nā kahe wai hohonu ma lalo o ka moana, ka lawelawe ʻawaʻawa, nā ʻōnaehana wai kai, ka hana kemika, a me nā noi ʻoihana wela kiʻekiʻe ma ka honua holoʻokoʻa.