Inconel 625 Pipe Fittings
Inconel 625 Pipe Fittings are engineered from a high-performance nickel-chromium-molybdenum alloy known for its exceptional strength, outstanding corrosion resistance, and stability across an extremely wide temperature range. These fittings are widely used in industries where material reliability is non-negotiable, especially in aggressive chemical environments, offshore systems, and high-temperature process applications. The combination of nickel with chromium and molybdenum, strengthened by niobium, gives the alloy superior resistance to pitting, crevice corrosion, oxidation, and chloride-induced stress corrosion cracking..
Rose Metal Industries is a leading manufacturer, stockist, and global exporter of Inconel 625 Pipe Fittings, supplying products such as elbows, tees, reducers, caps, crosses, and customized fabricated fittings. With strong supply capabilities across Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry), and the Andaman & Nicobar Islands, the company supports major industries including petrochemical plants, refineries, LNG terminals, marine engineering facilities, and power generation installations. Our fittings comply with international norms and undergo rigorous quality processes to ensure high performance under demanding conditions..
The manufacturing process of Inconel 625 Pipe Fittings involves precise forging, heat treatment, machining, and surface finishing to deliver reliable mechanical strength and consistent metallurgical properties. Solution annealing enhances corrosion resistance, while optional NDT testing (UT/RT/PMI) ensures material integrity. Rose Metal Industries maintains full traceability through heat numbers and provides mill test certificates (EN 10204 3.1/3.2), making our fittings suitable for mission-critical applications and regulatory-controlled industries.
Inconel 625 fittings are especially valued in environments exposed to seawater, high salinity, hydrocarbons, acids, alkalis, and extreme temperatures. This makes them a preferred choice for offshore platforms, desalination plants, shipbuilding, chemical reactors, heat exchangers, and high-temperature exhaust systems. The alloy's ability to retain strength up to 1000°C and withstand cryogenic temperatures further enhances its versatility. As industries in southern India and island regions expand their coastal and energy infrastructure, the demand for corrosion-resistant materials like Inconel 625 continues to grow rapidly..
Material Specification
Equivalent Grades & Cross References
- UNS: N06625
- EN / ISO: commonly referenced by chemistry and UNS number (consult project standard)
- Proprietary names: Inconel® 625 (Special Metals), Nickel alloy 625
Dimension Chart — Common Pipe / Fitting Sizes
Common NPS/OD sizes (representative). For pressure‑class and schedule specific wall thicknesses, consult ASME B36.10/36.19 or project piping specification.
| NPS (inch) | Outside Diameter (mm) | Typical DN |
|---|---|---|
| 1/2" | 21.3 | 15 |
| 3/4" | 26.7 | 20 |
| 1" | 33.4 | 25 |
| 2" | 60.3 | 50 |
| 4" | 114.3 | 100 |
| 8" | 219.1 | 200 |
| 12" | 323.9 | 300 |
| 24" | 610.0 | 600 |
| 48" | 1219.0 | 1200 |
Tip: Always specify schedule/pressure class and end preparation (butt‑weld, socket, screwed) when ordering fittings.
Applications
- Offshore oil & gas — risers, subsea manifolds, topside process lines
- Petrochemical & chemical processing — corrosive streams, acid environments
- Power generation — heat exchangers, turbine components, high temperature piping
- Marine & desalination — seawater systems, cooling circuits
- Cryogenic service and special metallurgy applications
Rose Metal Industries offers fittings in multiple schedules, sizes, and end configurations based on ASME/ASTM standards and customer specifications. With ready stock availability and global export services, the company ensures prompt delivery for project deadlines and shutdown requirements. Our engineering and sales teams assist customers in selecting the right grade, thickness, and fitting type depending on pressure rating, media, and environmental conditions..
In summary, Inconel 625 Pipe Fittings from Rose Metal Industries deliver unmatched performance, durability, and corrosion resistance. Whether for critical offshore systems, chemical processing pipelines, high-temperature reactors, or marine installations, these fittings provide long-lasting reliability in some of the world’s harshest industrial conditions. With strong logistic support across southern India and global export expertise, we ensure consistent supply, quality assurance, and technical guidance for every project.
Frequently Asked Questions (FAQ)
Q1: What is the difference between 304 and 304L?
A: 304L has a lower maximum carbon content (≤0.03%) which reduces the risk of sensitization during welding, making it preferable for heavy gauge welded components. Mechanical properties are similar; choose 304L when welding without post-weld anneal is required.
Q2: Do you provide mill test certificates (MTC)?
A: Yes — Rose Metal Industries issues MTCs and can facilitate third-party inspection and PMI/chemical analysis on request.
Q3: What standards do your round bars comply with?
A: We supply material to customer-specified standards including ASTM A276 / A479 and EN standards such as the EN 10088 series depending on product form and destination requirements.
Q4: Can you supply custom diameters, lengths and surface finishes?
A: Yes — we offer cut-to-length, turned/bright finish, polishing and custom tolerances. Contact our sales team for lead times and minimum order quantities.
Q5: How should I select 304 vs 316 for corrosion resistance?
A: 304 is suitable for many indoor and mildly corrosive environments. For chloride-rich environments (marine, salt-spray, swimming pools) or where higher corrosion resistance is required, 316 (with higher Mo content) is recommended. Our technical team will guide you based on application.