Description
Inconel 625 Pipes & Tubes
Inconel 625 Pipes & Tubes Supplier in India
Vivid Steel & Engineering Co. is a trusted supplier and stockist of Inconel 625 Pipes & Tubes, available in seamless, welded and other specified configurations for demanding industrial applications. Inconel 625, designated UNS N06625 / Werkstoff No. 2.4856, is a nickel-chromium-molybdenum alloy known for its excellent combination of high strength, corrosion resistance, oxidation resistance and resistance to chloride-induced stress corrosion cracking.
Our Inconel 625 Pipes and Tubes can be supplied according to applicable ASTM, ASME, AMS, EN, DIN and other international specifications, subject to product form and customer requirements.
For critical applications in oil & gas, petrochemical, chemical processing, marine engineering, power generation, aerospace, offshore and pollution-control equipment, Inconel 625 offers reliable performance in aggressive and high-temperature environments.
Key Features of Inconel 625 Pipes & Tubes
- Nickel-chromium-molybdenum alloy with niobium and tantalum
- Excellent resistance to general corrosion and localized corrosion
- High resistance to pitting and crevice corrosion
- Excellent resistance to chloride-ion stress corrosion cracking
- High tensile and yield strength
- Good fatigue and creep-rupture resistance
- Excellent weldability compared with many precipitation-hardening nickel alloys
- Suitable for demanding marine and offshore environments
- Good performance in both oxidizing and reducing environments
- Available in seamless and welded configurations
- Custom sizes, lengths and wall thicknesses available as per requirement
Inconel 625 Pipes & Tubes Specifications
| Parameter | Details |
|---|---|
| Product | Inconel 625 Pipes & Tubes |
| Alloy | Inconel Alloy 625 |
| UNS | N06625 |
| Werkstoff No. | 2.4856 |
| EN Designation | NiCr22Mo9Nb |
| Material Type | Nickel-Chromium-Molybdenum Alloy |
| Seamless Pipe & Tube | ASTM B444 / ASME SB444 |
| General Requirements | ASTM B829 / ASME SB829 |
| Welded Tube | ASTM B517 / ASME SB517 |
| Welded Pipe | ASTM B705 / ASME SB705 |
| Other Specifications | ASTM / ASME / AMS / EN / DIN / JIS, as applicable |
| Forms | Seamless, Welded, Cold Drawn, Fabricated, U-Tube, Coil Tube, as required |
| Manufacturing Conditions | Annealed / Solution Annealed, as specified |
| ASTM B444 Grades | Grade 1 / Grade 2 |
| Pipe Schedule | SCH 5, SCH 10, SCH 40, SCH 80, SCH 120, SCH 160, XXS and custom |
| Length | Random, Double Random or Cut Length |
| Ends | Plain End, Bevelled End, Threaded End, as required |
| Surface | Mill Finish, Pickled, Bright Annealed or as specified |
| Marking | Grade, Size, Specification, Heat No. and other details as applicable |
Note: Product dimensions, grades, heat treatment and tolerances are supplied according to the applicable material specification and purchase order requirements.
Inconel 625 Chemical Composition
The high nickel content combined with chromium, molybdenum, niobium and tantalum provides Inconel 625 with its excellent corrosion resistance and mechanical performance. Typical specification limits for UNS N06625 include:
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 58.00 min |
| Chromium (Cr) | 20.00 – 23.00 |
| Molybdenum (Mo) | 8.00 – 10.00 |
| Niobium + Tantalum (Nb + Ta) | 3.15 – 4.15 |
| Iron (Fe) | 5.00 max |
| Carbon (C) | 0.10 max |
| Manganese (Mn) | 0.50 max |
| Silicon (Si) | 0.50 max |
| Aluminium (Al) | 0.40 max |
| Titanium (Ti) | 0.40 max |
| Cobalt (Co) | 1.00 max |
| Phosphorus (P) | 0.015 max |
| Sulphur (S) | 0.015 max |
Inconel 625 Pipes Mechanical Properties
Mechanical properties depend on the applicable product specification, grade and heat-treatment condition. For ASTM B444 material, values vary between Grade 1 and Grade 2 conditions.
Typical Mechanical Properties
| Property | Typical / Minimum Value* |
|---|---|
| Tensile Strength | Up to approx. 827–930 MPa, depending on condition/specification |
| Yield Strength, 0.2% Offset | Approx. 414–517 MPa, depending on condition/specification |
| Elongation | Approx. 30% minimum or as specified |
| Density | Approx. 8.44 g/cm³ |
| Melting Range | Approx. 1290–1350°C |
| Elastic Modulus | Approx. 207 GPa |
*Mechanical requirements must always be verified against the applicable ASTM/ASME material specification and supplied condition.
Inconel 625 Pipe & Tube Dimensions
Vivid Steel & Engineering Co. can supply Inconel 625 Pipes & Tubes in standard and customised dimensions, subject to availability and manufacturing requirements.
Common Pipe Sizes
| Nominal Pipe Size | DN | Approx. Outside Diameter |
|---|---|---|
| 1/2″ | DN 15 | 21.3 mm |
| 3/4″ | DN 20 | 26.7 mm |
| 1″ | DN 25 | 33.4 mm |
| 1-1/4″ | DN 32 | 42.2 mm |
| 1-1/2″ | DN 40 | 48.3 mm |
| 2″ | DN 50 | 60.3 mm |
| 2-1/2″ | DN 65 | 73.0 mm |
| 3″ | DN 80 | 88.9 mm |
| 4″ | DN 100 | 114.3 mm |
| 5″ | DN 125 | 141.3 mm |
| 6″ | DN 150 | 168.3 mm |
| 8″ | DN 200 | 219.1 mm |
| 10″ | DN 250 | 273.0 mm |
| 12″ | DN 300 | 323.9 mm |
| 14″ | DN 350 | 355.6 mm |
| 16″ | DN 400 | 406.4 mm |
| 18″ | DN 450 | 457.2 mm |
| 20″ | DN 500 | 508.0 mm |
| 24″ | DN 600 | 610.0 mm |
Common Wall Thickness / Schedule Options
Inconel 625 Pipes can be supplied in commonly specified schedules including:
SCH 5 / SCH 10 / SCH 20 / SCH 40 / STD / SCH 60 / SCH 80 / XS / SCH 100 / SCH 120 / SCH 140 / SCH 160 / XXS, subject to nominal pipe size and applicable specification.
Inconel 625 Tubing Dimensions
For tubing applications, Vivid Steel & Engineering Co. can offer dimensions specified by:
- Outside Diameter × Wall Thickness
- Inside Diameter × Wall Thickness
- OD × WT × Length
- Metric dimensions
- Imperial dimensions
- Thin-wall tubing
- Heavy-wall tubing
- Precision / cold-drawn tubing
- U-bend and coil tubing, subject to requirement
Typical tube OD range: approximately 6 mm to 610 mm, with wall thicknesses and lengths available according to specification, manufacturing capability and project requirements.
Custom dimensions: We can source or arrange special OD, wall thickness, length and tolerance requirements for project-specific applications.
Types of Inconel 625 Pipes & Tubes Available
Inconel 625 Seamless Pipes
Inconel 625 seamless pipes are manufactured without a longitudinal weld and are widely selected for demanding pressure, temperature and corrosion-service applications.
Available according to applicable specifications such as ASTM B444 / ASME SB444.
Inconel 625 Seamless Tubes
Inconel 625 seamless tubes are suitable for heat exchangers, instrumentation, process equipment and high-performance tubing systems where corrosion resistance and dimensional reliability are important.
Inconel 625 Welded Pipes
Welded Inconel 625 pipes can be supplied according to the applicable welded-pipe specification and project requirements.
Inconel 625 Welded Tubes
Welded tubes can be supplied for applications requiring larger dimensions, specific wall thicknesses or economical fabrication solutions.
Inconel 625 U-Tubes & Coil Tubes
Specialised configurations such as U-bend tubes, coiled tubes and custom-length tubes can be supplied depending on application and quantity.
Applications of Inconel 625 Pipes & Tubes
Inconel 625 is selected for applications where conventional stainless steels and carbon steels may not provide adequate corrosion resistance or high-temperature performance.
Oil & Gas Industry
Used in offshore production, subsea systems, wellhead components, downhole applications and corrosive process piping.
Petrochemical & Chemical Processing
Suitable for process piping, heat exchangers and equipment exposed to aggressive chemical environments.
Marine & Offshore
Its resistance to seawater and chloride-containing environments makes it suitable for marine engineering and offshore applications.
Aerospace Industry
Used in selected aerospace components and systems requiring a combination of strength, oxidation resistance and temperature performance.
Power Generation
Used in heat-transfer equipment, high-temperature systems and specialised power-generation components.
Pollution Control Equipment
Suitable for flue-gas and emission-control systems exposed to corrosive operating conditions.
Nuclear & Advanced Engineering
Used in specialised components where corrosion resistance, strength and reliability are critical.
Heat Exchangers & Process Equipment
Inconel 625 tubing is suitable for demanding heat-transfer and process applications requiring corrosion-resistant materials.
Why Choose Vivid Steel & Engineering Co. for Inconel 625 Pipes & Tubes?
Extensive Alloy Product Range
We deal in a broad range of nickel alloys, stainless steels, carbon steels, alloy steels, pipes, tubes, fittings, flanges, plates and bars.
Material Traceability
Material can be supplied with heat number identification and Mill Test Certificates (MTC) as applicable, helping customers maintain material traceability.
Quality Documentation
Documentation can include chemical analysis, mechanical test results, heat-treatment details and applicable inspection reports, according to the order requirements.
Third-Party Inspection
Third-party inspection can be arranged through approved inspection agencies where required by the customer or project specification.
Testing & Inspection
Materials can be supplied with applicable testing and inspection documentation to meet project and specification requirements.
Custom Sizes
We can source and supply special sizes, wall thicknesses, lengths and configurations according to project requirements.
PAN India Supply
We serve customers across India and can coordinate dispatches to project sites, fabrication facilities and industrial locations.
Export Supply
We also cater to international enquiries with export-oriented packing, documentation and logistics coordination as required.
Project & Urgent Requirements
We understand that specialised nickel-alloy requirements are often time-sensitive. Our sourcing network enables us to assist with project requirements, shutdown requirements and urgent material enquiries, subject to availability.
Testing & Inspection of Inconel 625 Pipes & Tubes
Quality control is particularly important for nickel-alloy materials used in critical applications. Depending on the applicable specification and customer requirement, inspection may include:
Chemical Composition / PMI
Chemical composition is verified to ensure the supplied alloy conforms to UNS N06625 and the applicable specification.
Mechanical Testing
Testing may include:
- Tensile Test
- Yield Strength Test
- Elongation Test
- Hardness Test
Non-Destructive Testing
Depending on product form and specification:
- Ultrasonic Testing (UT)
- Radiographic Testing (RT)
- Eddy Current Testing (ET)
- Dye Penetrant Testing (DPT)
- Visual Inspection
- Dimensional Inspection
Additional Inspection
Where specified:
- Hydrostatic / Pressure Testing
- Surface Inspection
- Wall Thickness Measurement
- Outside Diameter Measurement
- Straightness Inspection
- Heat Treatment Verification
- Positive Material Identification (PMI)
- Third-Party Inspection
Documentation
Supply documentation can include:
- Mill Test Certificate (MTC)
- EN 10204 3.1 Certificate
- EN 10204 3.2 Certificate, where required
- Chemical Analysis Report
- Mechanical Test Report
- Heat Treatment Certificate
- PMI Report
- NDT Reports
- Third-Party Inspection Report
- Certificate of Conformity
Testing and documentation are provided as applicable to the material specification, purchase order and customer requirements.
Inconel 625 Pipes & Tubes: Advantages
The combination of nickel, chromium, molybdenum and niobium gives Alloy 625 a strong balance of corrosion resistance and mechanical performance.
Major advantages include:
- Excellent corrosion resistance
- High resistance to chloride pitting
- High resistance to crevice corrosion
- Excellent resistance to chloride stress corrosion cracking
- High strength
- Good fatigue resistance
- Good creep-rupture resistance
- Good oxidation resistance
- Good weldability
- Suitable for marine and offshore environments
- Suitable for demanding chemical processing applications
- Reliable performance across a broad temperature range
Inconel 625 vs Stainless Steel 316L
For highly corrosive applications, Inconel 625 may be selected where the corrosion resistance and strength requirements exceed those typically provided by conventional austenitic stainless steels.
| Property | Inconel 625 | SS 316L |
|---|---|---|
| Material Family | Nickel Alloy | Austenitic Stainless Steel |
| UNS | N06625 | S31603 |
| Nickel | 58% min | Lower |
| Chromium | 20–23% | Approx. 16–18% |
| Molybdenum | 8–10% | Approx. 2–3% |
| Chloride Resistance | Excellent | Very Good |
| High-Temperature Strength | High | Moderate |
| Severe Corrosive Service | Excellent | Application dependent |
| Typical Cost | Higher | Lower |
Important: Material selection should always be based on the actual operating temperature, pressure, chemical environment, corrosion mechanism, design code and project specification.
Inconel 625 Pipes & Tubes: Equivalent Grades
| Standard / Designation | Equivalent |
|---|---|
| UNS | N06625 |
| Werkstoff No. | 2.4856 |
| EN | NiCr22Mo9Nb |
| Trade Name | Inconel Alloy 625 |
| JIS | NCF 625 |
| British | NA 21 |
Equivalent designations should be confirmed against the applicable material standard before procurement.
Frequently Asked Questions – Inconel 625 Pipes & Tubes
1. What is Inconel 625?
Inconel 625 is a nickel-chromium-molybdenum alloy strengthened primarily by molybdenum and niobium. It offers an excellent combination of corrosion resistance, high strength, oxidation resistance and weldability.
2. What is the UNS number of Inconel 625?
The UNS designation for Inconel Alloy 625 is UNS N06625.
3. What is the ASTM specification for Inconel 625 seamless pipes?
ASTM B444 is a key specification for nickel-chromium-molybdenum-columbium alloy seamless pipe and tube, including UNS N06625. General requirements are covered by ASTM B829.
4. What is the ASME equivalent of ASTM B444?
The corresponding ASME designation is generally ASME SB444.
5. What is the difference between Inconel 625 Pipe and Tube?
The distinction is generally based on product dimensions, manufacturing requirements, dimensional tolerances and applicable standards. Both pipes and tubes can be supplied in seamless or welded forms depending on the applicable specification.
6. Is Inconel 625 available in seamless form?
Yes. Inconel 625 seamless pipes and tubes are available according to applicable specifications such as ASTM B444 / ASME SB444.
7. Is Inconel 625 suitable for seawater?
Yes. Inconel 625 has excellent resistance to many marine and chloride-containing environments and is widely considered for offshore and marine applications.
8. Can Vivid Steel & Engineering supply custom sizes?
Yes. We can source and supply custom OD, wall thickness, length and special dimensions, subject to manufacturing feasibility, minimum order quantities and availability.
9. Can Inconel 625 pipes be supplied with MTC?
Yes. Material Test Certificates can be supplied as applicable, including chemical and mechanical test results and heat/lot traceability.
10. Can third-party inspection be arranged?
Yes. Third-party inspection can be coordinated according to customer, EPC or project requirements.
11. What industries use Inconel 625 pipes and tubes?
Major applications include oil & gas, offshore, marine, petrochemical, chemical processing, aerospace, power generation, pollution control, heat exchangers and specialised process equipment.
12. Does Vivid Steel & Engineering supply Inconel 625 across India?
Yes. Vivid Steel & Engineering Co. caters to customers across India and can coordinate material supply and delivery based on project location and requirements.
Get a Quote for Inconel 625 Pipes & Tubes
Looking for Inconel 625 Pipes & Tubes, UNS N06625 seamless pipes, ASTM B444 tubes or nickel alloy 625 tubing?
Vivid Steel & Engineering Co. can assist with standard and custom sizes, material specifications, MTC requirements, inspection documentation and project-specific enquiries.
Send us your required size, quantity, specification, schedule/wall thickness, length and delivery location for a competitive quotation.
Enquire Now
Product: Inconel 625 Pipes & Tubes
Grade: Inconel 625 / UNS N06625
Specification: ASTM B444 / ASME SB444 or applicable standard
Supply: Seamless / Welded / Special Configurations
Documentation: MTC / Inspection Reports as required
Delivery: India, UAE, Saudi Arabia, Nigeria, Tanzania, Singapore, Thailand, Vietnam, Japan, Israel, Italy, France
