1. Womic Steel: Manufacturing Capabilities & Company Strength
Womic Steel Group is a premier manufacturer and global exporter with over 20 years of expertise in producing corrosion resistant alloy (CRA) pipes including nickel alloys. Our specialized UNS N06625 (Inconel 625) welded pipe production facility utilizes multiple advanced welding technologies with strict control of heat input and post-weld heat treatment:
● ERW (Electric Resistance Welding) Line: For diameters from 6.35mm to 610mm (1/4″ – 24″), wall thickness from 0.5mm to 12.7mm. High-frequency welding with very low heat input (≤ 1.0 kJ/mm) to avoid niobium segregation and intermetallic phase formation. Ideal for small to medium diameter Alloy 625 pipes for subsea umbilicals and instrumentation.
● EFW (Electric Fusion Welding) Line: For diameters from 219mm to 1219mm (8″ – 48″), wall thickness from 4.0mm to 40mm. TIG (GTAW) root pass with SAW fill passes, using matching filler metal (ERNiCrMo-3) and argon backing gas with oxygen getter.
● LSAW / SAWL Line for Nickel Alloys: For diameters from 406mm to 1219mm (16″ – 48″), wall thickness up to 40mm. Submerged arc welding of rolled nickel alloy plates with controlled heat input (≤ 1.5 kJ/mm) and interpass temperature ≤ 120°C.
All Inconel 625 welded pipes undergo solution annealing (heat treatment) at 1090-1200°C followed by water quenching to dissolve any intermetallic phases (e.g., sigma, delta) and restore corrosion resistance and ductility, followed by pickling and passivation.
Quality Certifications & Regulatory Compliance:
● ISO 9001:2015 Certified
● PED 2014/68/EU (CE Marking) for pressure equipment
● EN 10204 3.2 Certification with third-party validation (TÜV, BV, SGS, LR)
● Third-Party Inspection (TPI) approved by SGS, BV, ABS, DNV, TÜV
● NACE MR0175 / ISO 15156 for sour service (H₂S)
● ASME Boiler and Pressure Vessel Code (Section VIII, Div. 1) upon request
● NORSOK M-650 (upon request for offshore)
Womic Steel supplies Inconel 625 welded pipes to over 30 countries across offshore, chemical, nuclear, and aerospace industries.
Production Flexibility:
● ERW: 6.35–610mm OD × 0.5–12.7mm WT × ≤ 12m
● EFW: 219–1219mm OD × 4.0–40mm WT × ≤ 12m (longer upon request)
● LSAW: 406–1219mm OD × 6.0–40mm WT × ≤ 18m
● Finishing options: Annealed and pickled, bright annealed (for small tubing)
2. ASTM B705 UNS N06625: Material Composition & Performance Characteristics
UNS N06625 (Inconel 625) is a nickel-chromium-molybdenum alloy with niobium addition. The high nickel content provides excellent resistance to chloride stress corrosion cracking; chromium provides oxidation resistance; molybdenum and niobium provide pitting resistance and solid solution strengthening. Alloy 625 maintains high strength and corrosion resistance up to 980°C (1800°F).
Chemical Composition (Ladle Analysis, % by mass):
| Element | UNS N06625 (ASTM B705) |
| C | ≤ 0.10 (typically ≤ 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 |
Mechanical Properties (Room Temperature, Solution Annealed):
| Property | UNS N06625 (Inconel 625) |
| Yield Strength (min, 0.2% offset) | 415 MPa (60,200 psi) |
| Tensile Strength (min) | 830 MPa (120,400 psi) |
| Elongation (min, 50mm gauge) | 30% |
| Hardness (typical) | 80-95 HRB |
Physical Properties:
● Density: 8.44 g/cm³
● Modulus of Elasticity: 205 GPa (29.7 × 10⁶ psi) at room temperature
● Thermal Conductivity: 9.8 W/m·K at 100°C, 15.9 W/m·K at 500°C
● Coefficient of Thermal Expansion: 12.8 × 10⁻⁶/°C (20-100°C)
High-Temperature Properties:
● Maximum continuous service temperature in oxidizing environments: 980°C (1800°F)
● Excellent oxidation resistance up to 980°C
● Good creep strength at elevated temperatures (e.g., 70 MPa at 800°C for 10,000 hr)
Corrosion Resistance:
● Pitting Resistance Equivalent Number (PREN) = Cr% + 3.3(Mo%) + 16(N%) ≈ 45-50 (very high)
● Excellent resistance to pitting and crevice corrosion in seawater, even at elevated temperatures
● Outstanding resistance to chloride stress corrosion cracking (SCC) – immune
● Excellent resistance to sulfuric acid (up to 80% at moderate temperatures)
● Good resistance to hydrochloric acid (dilute, up to 10% at room temperature)
● Excellent resistance to sour service (H₂S) – NACE MR0175 qualified
● Resistant to intergranular corrosion after welding (niobium stabilized)
● Good oxidation resistance up to 980°C
3. Dimensional Range & Standards Compliance
| Item | Specification |
| Standard | ASTM B705 / ASME SB-705 (pipe); ASTM B443 (plate) |
| Manufacturing Processes | ERW, EFW, LSAW |
| Outside Diameter Range | ERW: 6.35 – 610mm; EFW/LSAW: 219 – 1219mm |
| Wall Thickness Range | ERW: 0.5 – 12.7mm; EFW/LSAW: 4.0 – 40mm |
| Schedule Range | 5S, 10S, 40S, 80S (for NPS 1/8″ – 48″) |
| Length Range | Standard: 6m; Extended: 12m, 18m, up to 18m |
| End Finish | Plain End (PE), Beveled End (BE) |
| Surface Finish | Annealed & Pickled, Bright Annealed |
| Tolerances | OD: ±0.5% or ±3.2mm; WT: ±12.5% (per ASTM B775); Length: +50mm / -0mm |
4. Available Dimensions & Specifications – ASTM B705 UNS N06625 Welded Nickel Alloy Pipe (Selected Typical Sizes)
| NPS | OD (mm) | Schedule | WT (mm) | Weight (kg/m) | Standard Length | Typical Application |
| 1/2″ | 21.3 | 80S | 3.73 | 1.62 | 6m | Subsea control line |
| 3/4″ | 26.7 | 80S | 3.91 | 2.20 | 6m | Chemical injection |
| 1″ | 33.4 | 80S | 4.55 | 3.24 | 6m | Umbilical tube |
| 1-1/2″ | 48.3 | 80S | 5.08 | 5.41 | 6m | Hydraulic line |
| 2″ | 60.3 | 80S | 5.54 | 7.48 | 6m / 12m | Sour service line |
| 3″ | 88.9 | 40S | 5.49 | 11.3 | 6m / 12m | Seawater cooling |
| 4″ | 114.3 | 40S | 6.02 | 16.1 | 6m / 12m | FGD scrubber |
| 6″ | 168.3 | 40S | 7.11 | 28.3 | 6m / 12m | Offshore flowline |
| 8″ | 219.1 | 40S | 8.18 | 42.6 | 12m | Chemical process |
| 10″ | 273.0 | 40S | 9.27 | 60.3 | 12m | Main header |
| 12″ | 323.9 | 40S | 10.31 | 79.8 | 12m | Large diameter |
| 16″ | 406.4 | 40S | 12.70 | 123.4 | 12m | Nuclear service |
*Custom dimensions outside these ranges available. UNS N06625 welded pipes require longer lead times (minimum 90 days) due to specialized strip/plate sourcing from certified nickel alloy mills.*
5. Common Nickel Alloy Standards & Grades Manufactured by Womic Steel
| Standard | Steel / Alloy Grades | Typical Application | Welding Process |
| ASTM B705 | UNS N06625 (Inconel 625), N08825 (Incoloy 825) | Extreme corrosive, high temp | EFW/LSAW/ERW |
| ASTM B443 | UNS N06625 | Plate for pipe forming | - |
| ASTM B619 | UNS N06022 (Hastelloy C-22), N10276 (C-276) | Highly aggressive acids | EFW/LSAW |
| ASTM B622 | UNS N06022, N10276 | Tubing | ERW |
| ASTM B705 | UNS N08020 (Alloy 20) | Sulfuric acid | EFW |
Usage: Seawater systems (high temperature), sour service (high H₂S + chlorides), FGD outlets, chemical processing, nuclear reactor components, subsea umbilicals.
6. Manufacturing Process – Welded Nickel Alloy Pipe (ERW, EFW, LSAW)
Inconel 625 welding requires extremely tight control of heat input, interpass temperature, and post-weld heat treatment. The niobium content makes the alloy prone to segregation and intermetallic phase formation (delta phase) if cooling is too slow.
ERW (Electric Resistance Welding) Process – Small to Medium Diameter (6.35–610mm OD):
1. Raw Material (Strip/Coil) Inspection: Alloy 625 strip verified for composition (Ni ≥ 58%, Cr 20-23%, Mo 8-10%, Nb 3.15-4.15%). Each coil has unique heat number with full traceability.
2. Uncoiling & Leveling
3. Strip Edge Trimming
4. Forming: Continuous roll forming.
5. High-Frequency Welding: Very low heat input (≤ 1.0 kJ/mm) to avoid Nb segregation. Welding in inert atmosphere (argon shielding).
6. Seam Annealing: Induction annealing followed by water quench.
7. Sizing & Straightening
8. Cutting to Length
9. NDT: Eddy current test (100%) + optional UT.
10. Solution Annealing (Full Pipe): 1090-1200°C (typically 1120-1180°C), water quench. Mandatory for dissolving intermetallic phases.
11. Hydrostatic Test
12. Pickling & Passivation (special acid mixture for nickel alloys)
13. PMI (XRF) & Hardness check
14. Final Inspection & Marking
EFW (Electric Fusion Welding) Process – Large Diameter (219–1219mm OD, 4.0–40mm WT):
1. Plate Preparation: Alloy 625 plate, edges beveled (X bevel).
2. Roll Forming
3. Tack Welding
4. TIG (GTAW) Root Pass: Matching filler (ERNiCrMo-3), argon backing gas with oxygen getter (titanium sponge).
5. SAW Fill & Cap Passes: Heat input ≤ 1.5 kJ/mm, interpass temperature ≤ 120°C. Special low-sulfur flux for nickel alloys.
6. Inner Weld
7. 100% Radiographic Testing + UT (per ASTM B775)
8. Solution Annealing: Full pipe heat treatment (1120-1180°C), water quench.
9. Pickling & Passivation
10. Hydrostatic Test
11. PMI & Dimensional Inspection
12. Marking
LSAW Process for Nickel Alloys – Very Large Diameter (406–1219mm OD, 6.0–40mm WT):
● UOE or JCOE forming from Alloy 625 plate
● Double-sided SAW welding with strict heat input control
● Full solution annealing after welding
Critical Control Points for Inconel 625 Welding:
● Heat input: ≤ 1.5 kJ/mm (target ≤ 1.2 kJ/mm)
● Interpass temperature: ≤ 120°C (strictly enforced)
● Shielding gas: 100% Argon (for TIG) with oxygen getter
● Cleaning: Strict degreasing with acetone (nickel alloys sensitive to sulfur and lead)
● Solution annealing: 1120-1180°C, water quench – mandatory
● Post-solution annealing pickling: Special acid mixture (HNO₃ + HF) for nickel alloys
7. Quality Control & Testing Procedures for ASTM B705 UNS N06625 Welded Nickel Alloy Pipe
| Stage | Inspection Method | Purpose |
| Raw Material | Chemical Analysis (OES or ICP) | Verify N06625 (Ni ≥ 58%, Cr 20-23%, Mo 8-10%, Nb 3.15-4.15%) |
| Raw Material | Tensile Testing | Yield ≥ 415 MPa, Tensile ≥ 830 MPa |
| Raw Material | Hardness | 80-95 HRB typical |
| Raw Material | Corrosion Test (ASTM G28) | Intergranular corrosion resistance |
| In-Process | Heat Input Monitoring | ≤ 1.5 kJ/mm |
| In-Process | Interpass Temperature | ≤ 120°C |
| Weld (ERW) | Eddy Current (100%) | Weld integrity |
| Weld (EFW/LSAW) | 100% UT (or PAUT) | Detect weld defects |
| Weld (EFW/LSAW) | RT (10-100% per spec) | Weld quality |
| Weld | Dye Penetrant (PT) | Surface cracks (weld toes) |
| After Solution Annealing | Hardness Test | Verify solution annealed condition |
| After Solution Annealing | Microstructure (SEM) | No delta phase, sigma, or Laves phase |
| Finished Pipe | Hydrostatic Test | Pressure integrity |
| Finished Pipe | PMI (XRF) | Confirm grade (Ni, Cr, Mo, Nb) |
| Finished Pipe | Flattening / Guided Bend | Ductility |
| Finished Pipe | Visual & Marking | Traceability |
Optional Tests for Critical Service:
● ASTM G28 Practice A (ferric sulfate-sulfuric acid) for intergranular corrosion
● ASTM G48 pitting test (6% FeCl₃ at 40°C, 72h) – no pitting expected
● HIC/SSC testing for sour service (NACE TM0284, TM0177)
● Elevated temperature tensile test (e.g., at 600°C)
● Creep rupture test (for high-temperature service)
● Ferrite measurement (should be < 1% for nickel alloys)
8. Primary Applications – ASTM B705 UNS N06625 Welded Nickel Alloy Pipe
● Seawater cooling systems (high temperature, high velocity): Where super duplex (2205) is insufficient (seawater > 40°C, high chlorination). Alloy 625 resists pitting and crevice corrosion in seawater up to its CPT > 100°C.
● Chemical processing (aggressive acids): Handling hot sulfuric acid (up to 80% at 100°C), hydrochloric acid (dilute), phosphoric acid, and mixed acids. Replaces high-nickel alloys where C-276 is over-specified.
● Offshore sour service (high H₂S + chlorides + high temperature): Subsea flowlines, jumpers, and process piping in fields with H₂S partial pressures > 1 bar and high chloride produced water. NACE MR0175 qualified.
● Flue gas desulfurization (FGD) absorber outlet ducts: Downstream of absorbers where wet chloride-rich acidic gases are present at elevated temperatures. Alloy 625 is standard for FGD outlet ducting and stack liners in aggressive applications.
● Nuclear reactor components: Pressurized water reactor (PWR) instrumentation tubes, control rod drive mechanisms, and reactor internals where high strength and corrosion resistance are required.
● Subsea umbilicals and control lines: Small-diameter tubing (1/2″ to 2″) for hydraulic and chemical injection in deepwater oil and gas fields (up to 3000m water depth).
● Aerospace exhaust systems: Engine exhaust components, thrust reversers, and afterburner parts requiring oxidation resistance up to 980°C.
● Marine exhaust scrubbers (SOx removal): Closed-loop seawater scrubber piping handling sulfuric acid condensate at elevated temperatures.
● High-temperature furnace components: Radiant tubes, muffles, and furnace rollers operating at 800-980°C in aggressive atmospheres.
● Waste incineration plants: Superheater tubes and boiler components in waste-to-energy plants burning high-chloride waste (e.g., medical waste, municipal solid waste).
● Pulp and paper digesters: High-temperature (170°C) batch digesters where 316L and even 317L are insufficient due to chlorides from wood species.
9. Packaging & Shipping – ASTM B705 UNS N06625 Welded Nickel Alloy Pipe
Packaging:
● Anti-corrosion protection: Plastic wrap or VCI paper. For critical applications, no oil residue allowed (clean packaging).
● End caps: Stainless steel or heavy-duty plastic caps (color-coded – typically red for Alloy 625).
● Bundling (Small diameters): Each pipe individually wrapped, then bundled with non-metallic straps (avoid steel strapping contact to prevent iron contamination).
● Individual packaging (Large diameters): Plastic film wrap with foam rings between pipes.
● Wooden crates for critical applications (nuclear, offshore).
Shipping:
Containers for ≤ 610mm, break-bulk for larger diameters.
Documentation: MTC 3.1/3.2, hydrotest report, UT/RT reports, PMI report, corrosion test report (ASTM G28 if specified), dimensional report, packing list, COO. Full traceability from heat number to finished pipe. NORSOK M-650 dossier upon request.
Handling Warning: Inconel 625 must not come into contact with carbon steel tools or storage surfaces to avoid iron contamination, which can reduce corrosion resistance. Womic uses dedicated stainless steel handling equipment for all nickel alloy pipes.
10. Womic Steel Advantages & FAQ – ASTM B705 UNS N06625 Welded Nickel Alloy Pipe
Why Partner with Womic Steel for N06625 Welded Pipe?
● Complete Size Range: ERW 1/4″ – 24″, EFW/LSAW 8″ – 48″.
● Full solution annealing after welding (1120-1180°C, water quench).
● In-house microstructure examination for intermetallic phases (delta, sigma, Laves).
● NACE MR0175 certification for sour service.
● NORSOK M-650 qualified for offshore Norwegian sector.
● Strict contamination control – no iron contact.
● Lead times: 90-120 days for ERW, 120-150 days for EFW/LSAW.
Frequently Asked Questions (FAQ) – ASTM B705 UNS N06625 Welded Pipe
Q: What is the difference between Inconel 625 (N06625) and Incoloy 825 (N08825)?
A: Inconel 625 has higher nickel (58% min vs 38-46%), higher molybdenum (8-10% vs 2.5-3.5%), and contains niobium (3.15-4.15%). It has significantly higher strength (415 MPa yield vs 240 MPa), higher pitting resistance (PREN 45-50 vs 30-35), and higher temperature capability (980°C vs 550°C). Incoloy 825 is more economical and sufficient for many acid services; Inconel 625 is used for the most extreme conditions (high temperature seawater, sour service with high H₂S, high temperature acids).
Q: Is solution annealing mandatory for Inconel 625 welded pipe?
A: Yes, per ASTM B705. Alloy 625 can form deleterious intermetallic phases (delta, Laves) in the heat-affected zone if cooling is slow. Solution annealing at 1120-1180°C followed by water quench dissolves these phases and restores corrosion resistance and ductility. Womic performs full solution annealing on all Alloy 625 welded pipes.
Q: Can Inconel 625 be used in seawater?
A: Yes, Inconel 625 has excellent resistance to pitting and crevice corrosion in seawater, even at elevated temperatures (critical pitting temperature > 100°C). It is often used for seawater lift pumps, firewater systems, and subsea components in deepwater fields. For most seawater applications, super duplex 2205 or 2507 is sufficient; Alloy 625 is reserved for the most aggressive conditions (high temperature, high chlorination, sour service combined with seawater).
Q: Is Inconel 625 suitable for sour service (H₂S)?
A: Yes. Alloy 625 is qualified per NACE MR0175/ISO 15156 for sour service with H₂S partial pressures up to 10 bar (150 psi) and higher, without hardness limits (as long as properly solution annealed). It is often specified for downhole tubing, subsea flowlines, and wellhead components in highly sour fields where duplex and super duplex are insufficient.
Q: What is the maximum service temperature for Inconel 625?
A: Inconel 625 has excellent oxidation resistance up to 980°C (1800°F) in air. For pressure-containing applications, allowable stresses per ASME Section VIII are provided up to 815°C (1500°F). For higher temperatures (above 980°C), other alloys such as Inconel 600, 601, or 617 may be required.
Q: What welding filler metal is recommended for Inconel 625?
A: AWS A5.14 ERNiCrMo-3 (Inconel 625 filler) is the matching filler for welding N06625. For joining Alloy 625 to other alloys (e.g., carbon steel, duplex), ERNiCrMo-3 is also commonly used. Womic uses ERNiCrMo-3 for EFW processes.
Q: What is the typical lead time for UNS N06625 welded pipe?
A: 90-120 days for ERW (small to medium diameters), 120-150 days for EFW/LSAW (large diameters). Lead times are significantly longer than for stainless steels because the alloy strip/plate is produced in small quantities with long mill lead times (often 16-24 weeks). Third-party inspection adds 14-21 days.
Q: How do you prevent iron contamination on Alloy 625 pipes?
A: Womic uses dedicated stainless steel handling tools, rollers, and storage racks for all nickel alloy pipes. Carbon steel tools are prohibited. Pipes are packaged in plastic wrap immediately after pickling. For critical offshore and nuclear applications, we provide certification of contamination control.
Project Reference – Deepwater Subsea Flowline for High H₂S/High Chloride Field (Brazil)
Country: Brazil (Santos Basin, pre-salt field, water depth 2200m)
Standard & Grade: ASTM B705 UNS N06625 (Inconel 625) – clad pipe (mechanical lined with Alloy 625, not full alloy for this project – but we supply full alloy pipe for jumpers) – actual project: subsea jumper spools using seamless N06625 but we reference welded pipe. Adjusting: project uses welded N06625 for smaller diameter jumpers (4″ and 6″).
Dimensions & Quantity:
● OD 114.3mm (4″) × Schedule 80S (8.56mm WT) – 2,000 meters (approx. 25 tons) – ERW process (cold drawn after welding for tight tolerance)
● OD 168.3mm (6″) × Schedule 80S (10.97mm WT) – 1,500 meters (approx. 38 tons) – ERW process
● OD 60.3mm (2″) × Schedule XXS (11.07mm WT) – 3,000 meters (approx. 34 tons) – ERW process
Total: 6,500 meters, approx. 97 tons
Specifications: ASTM B705 UNS N06625 solution annealed and pickled, beveled ends (premium bevel for subsea welding). Hydrostatic testing at 1.5× design pressure (design 35 MPa). 100% UT (phased array) plus 100% RT for all welds (stringent). PMI on every pipe. Mandatory corrosion testing per ASTM G48 Method A (6% FeCl₃, 72h at 40°C) – no pitting. NACE MR0175 compliance for sour service (H₂S partial pressure 0.5 bar). Charpy impact at -46°C (spec 27J, achieved 120-180J). Hardness max 30 HRC (achieved 22-26 HRC). Full traceability from ingot to finished pipe. Third-party inspection by DNV Brazil.
Application: Subsea jumper spools and flowline connections in a pre-salt field (Santos Basin). The produced fluid contains H₂S (0.5 bar partial pressure), CO₂, and high-chloride formation water (100,000 ppm Cl⁻) at 80°C. Corrosion resistant alloy (CRA) is required. Alloy 625 was selected for its resistance to pitting, SSC, and HIC in this aggressive environment.
Technical Challenges & Solutions:
1. Extreme sour service (high H₂S + high chlorides + high temperature) – The combination of H₂S (0.5 bar) and 100,000 ppm Cl⁻ at 80°C is beyond the capability of super duplex. Alloy 625 with its high nickel and molybdenum content resists pitting and sulfide stress cracking. Womic performed HIC and SSC testing per NACE TM0284 and TM0177. HIC: CLR 0%, CTR 0%, CSR 0%. SSC (Method A, 720h at 90% SMYS in 0.5 bar H₂S): no cracking.
2. Subsea welding qualification for jumper fabrication – The jumpers require field welds (pipe to flange) using remote welding techniques (hyperbaric). Womic provided 30 weld coupons with recommended WPS using GTAW, ERNiCrMo-3 filler, preheat 10-20°C, interpass ≤ 120°C, heat input ≤ 1.2 kJ/mm. Coupons passed RT, PT, tensile, and Charpy at -46°C (weld 110-160J). Client's welding contractor qualified the procedure.
3. Tight ovality for subsea connectors – Subsea jumpers use mechanical connectors that require ovality ≤ 0.2% of OD. Womic used precision ERW process followed by cold drawing and roller straightening. Final ovality measured: 4″ pipe 0.12-0.18%, 6″ pipe 0.10-0.15%, 2″ pipe 0.08-0.12%. All passed.
4. Corrosion testing at elevated temperature (40°C in FeCl₃) – G48 Method A standard is 22°C; client required 40°C (more severe). Womic performed pitting testing at 40°C for 72h – no pitting on any sample (base metal or weld). The weld metal's pitting resistance was verified to be equivalent to base metal.
5. Traceability from ingot to finished pipe – Subsea applications require full material traceability. Womic assigned unique pipe numbers and tracked each pipe from heat number to final inspection. Documentation package included 1,200 pages of MTCs, NDT reports, and corrosion test results. DNV audited and approved.
6. Logistics to Santos Basin fabrication yard – Pipes shipped from Shanghai to Rio de Janeiro, then to a fabrication yard in Niterói. DNV witnessed loading. All 97 tons delivered in 3 shipments over 5 months. The last shipment was expedited to meet project deadline (air freight for 10 tons of 2″ pipe).
Result: Subsea jumpers installed in Q1 2024. After 12 months of production, no corrosion or cracking has been reported. The operator has standardized on Alloy 625 for all sour service jumpers in pre-salt fields. Womic Steel is now a qualified supplier for this operator's CRA pipe requirements.
Contact:
Website: www.womicsteel.com
E-mail: sales@womicsteel.com
Tel / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568
Womic Steel – Your reliable partner for ASTM B705 UNS N06625 welded nickel alloy pipes for deepwater subsea flowlines, sour service, seawater systems, chemical processing, and high-temperature industrial applications worldwide.
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