Inconel Pipes Manufacturer in India
Inconel Pipes Manufacturer in India
Sachiya Steel International is a leading Duplex Seamless Pipe Manufacturer in India, manufacturing and supplying pipes and tubes since 2005. We serve domestic and international buyers with duplex stainless steel pipes for applications requiring high strength and resistance to corrosion. Our facility is near Mumbai, with an export office in Mumbai, supporting supply to customers across 85+ countries.
Our product range includes duplex grades such as UNS S31803 and S32205, along with super duplex UNS S32750, subject to requirements and availability. We supply different outside diameters, wall thicknesses, schedules and lengths according to applicable ASTM and ASME standards. Every order includes an EN 10204 Type 3.1 certificate, while Type 3.2 documentation and third-party inspection are available on request. Our quality credentials include ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, PED 2014/68/EU and TUV approvals..
What Are Inconel Pipes?
Inconel pipes are pipes made from Inconel, a family of nickel-chromium-based alloys designed for severe heat and corrosion. Nickel makes up about 45% to 72% of the metal, and chromium, iron, molybdenum and other elements are added for each job.
Each element has a role:
- Nickel keeps the alloy tough and resists chloride cracking.
- Chromium builds a tight oxide skin that resists scaling and oxidising acids.
- Molybdenum and niobium add strength and resistance to pitting and crevice corrosion.
- Aluminium gives scale resistance at very high temperature.
Pipes are made seamless, pierced from a solid billet, or welded from plate or strip. After forming, they are annealed so the alloy gets its full strength and corrosion resistance. Pipes are ordered by nominal pipe size (NPS) and schedule.
Inconel Pipes
High-quality Inconel Pipes manufactured for demanding applications across oil & gas, petrochemical, chemical processing, aerospace, marine, power generation and engineering industries. Available in various sizes, grades, wall thicknesses and manufacturing specifications.
Types of Inconel Pipes
As an Inconel Pipes Manufacturer, we offer different pipe grades, production methods and end finishes to meet the requirements of industrial applications.
- Inconel 600 Pipes: Used in heat treatment equipment, chemical processing units and chloride-exposed environments.
- Inconel 601 Pipes: Suitable for furnaces, thermal processing equipment and applications involving hot gases.
- Inconel 617 Pipes: Designed for high-temperature equipment and industrial systems exposed to extreme heat.
- Inconel 625 Pipes: Used in offshore installations, seawater systems, sour gas lines and chemical industries.
- Inconel 690 Pipes: Suitable for nitric acid production, steam applications and environments containing sulphur compounds.
- Seamless Inconel Pipes: Produced without longitudinal welds for demanding pressure applications and critical piping systems.
- Welded Inconel Pipes: Manufactured from alloy plates or strips, offering practical solutions for larger pipe diameters.
- Cold-Drawn Inconel Pipes: Manufactured with controlled dimensions and a fine surface finish for precision applications.
- Hot-Finished Inconel Pipes: Available in larger sizes and thicker wall sections for heavy-duty industrial use.
- Annealed and Pickled Inconel Pipes: Processed through heat treatment and pickling to achieve the required material condition and surface finish.
- Thin-Wall and Heavy-Wall Inconel Pipes: Supplied in schedules from Sch 10S to Sch 160 to suit different piping specifications.
- Plain-End and Bevelled-End Inconel Pipes: Available with suitable end preparations for piping assembly and butt-welding requirements.
Inconel 600, 601, 617, 625 and 690 Pipes Manufacturer and Supplier in India
We are an Inconel Pipes Manufacturer and Supplier in India, offering Inconel 600, 601, 617, 625 and 690 Pipes for industrial applications. Each grade offers specific properties to meet different operating temperatures, pressure requirements and service conditions.
- Inconel 600 Pipes (UNS N06600): Suitable for heat treatment equipment, furnace components and chemical processing lines requiring heat and corrosion resistance.
- Inconel 601 Pipes (UNS N06601): Features aluminium-enhanced oxidation resistance for high-temperature applications in industrial furnaces and incinerators.
- Inconel 617 Pipes (UNS N06617): Contains cobalt and molybdenum for strength and stability in high-temperature power generation and process piping systems.
- Inconel 625 Pipes (UNS N06625): Offers high strength and resistance to pitting, crevice corrosion and chloride stress corrosion cracking. Commonly used in offshore, seawater and sour gas applications.
- Inconel 690 Pipes (UNS N06690): Contains a high chromium content for resistance to oxidation and corrosion in nitric acid processing, steam generation and waste-to-energy plants.
Our Inconel Pipes are available in various outside diameters, wall thicknesses, schedules and end finishes to meet project specifications and industrial requirements.
Types of Pipes & Tubes
Explore our range of industrial pipes and tubes, manufactured for different applications, materials, specifications and engineering requirements.
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→Get Certified Inconel Pipes at Competitive Factory Prices
Inconel Pipes Specification
The table sets out the working specification.
| Item | Detail |
|---|---|
| Product | Inconel Pipes |
| Grades | Inconel 600, 601, 617, 625, 690 |
| Process | Seamless (hot finished or cold drawn) or welded (TIG or plasma arc), then annealed |
| Pipe standards | ASTM B167 (600, 601, 617, 690), B444 (625), B517 (welded 600), B705 (welded 625) / ASME SB equivalents |
| General requirements | ASTM B829 (seamless), ASTM B775 (welded) |
| Dimensions | ASME B36.19M (Sch 10S, 40S, 80S), ASME B36.10M (Sch 160 and other walls) |
| Size reference | NPS 1/2 to 12 in the tables, other sizes on request |
| Length | Single random, double random or cut length |
| Ends | Plain or bevelled (ASME B16.25) |
| Heat treatment | Annealed or solution annealed |
| Surface | Pickled |
| Tests | Chemical analysis, tensile, flattening, hydrostatic or non-destructive test; weld tension test on welded pipe |
| Certificate | EN 10204 3.1 with every order, 3.2 on request |
| Inspection | Third-party inspection on request |
Inconel Pipes Standards and Specifications
Inconel pipe is bought to an alloy standard, with matching fitting, plate and sour-service rules behind it. The table links each one to its job.
| Standard | Covers | Applies to |
|---|---|---|
| ASTM B167 / ASME SB-167 | Seamless nickel-chromium-iron alloy pipe and tube | Inconel 600, 601, 690; Inconel 617 |
| ASTM B444 / ASME SB-444 | Seamless nickel-chromium-molybdenum-columbium alloy pipe and tube | Inconel 625 |
| ASTM B517 / ASME SB-517 | Welded nickel-chromium-iron alloy pipe | Inconel 600 |
| ASTM B705 / ASME SB-705 | Welded nickel alloy pipe | Inconel 625 |
| ASTM B829 | General requirements for seamless nickel and nickel alloy pipe and tube | Tolerances and test rules, seamless |
| ASTM B775 | General requirements for welded nickel and nickel alloy pipe | Tolerances and test rules, welded |
| ASTM B366 | Factory-made wrought nickel and nickel alloy fittings | Matching butt-weld fittings |
| ASTM B564 | Nickel alloy forgings | Matching flanges and forged fittings |
| ASTM B168, B443 | Nickel-chromium plate, sheet and strip | Matching plate for 600/601/690 and 625 |
| NACE MR0175 / ISO 15156 | Materials for sour service | Oil and gas projects |
| ASME B36.19M and B36.10M | Pipe dimensions and weights | OD and wall reference |
| ASME B16.25 | Butt-welding ends | Bevel angle and root face |
| EN 10204 | Types of inspection documents | 3.1 and 3.2 certificates |
Inconel Pipes Material and Grades
Pick the grade by temperature, fluid and pressure. The table lists the grades with their UNS and EN numbers.
| Grade | UNS | EN number | Family | Standard | Typical use |
|---|---|---|---|---|---|
| Inconel 600 | N06600 | 2.4816 | Ni-Cr-Fe | B167, B517 | Furnaces, heat treatment, chemical lines |
| Inconel 601 | N06601 | 2.4851 | Ni-Cr-Al | B167 | Hot, oxidising gas, incinerators |
| Inconel 617 | N06617 | 2.4663 | Ni-Cr-Co-Mo | B167 | Highest-temperature power and process piping |
| Inconel 625 | N06625 | 2.4856 | Ni-Cr-Mo-Nb | B444, B705 | Seawater, sour gas, chemical plants |
| Inconel 690 | N06690 | 2.4642 | High-Cr nickel alloy | B167 | Nitric acid, steam, sulphur-laden gas |
What Is the Difference Between Inconel Pipes and Incoloy Pipes?
The short answer: Inconel has more nickel and is built for the toughest heat and corrosion, while Incoloy has more iron, costs less and suits moderate heat and acid duty. Use Inconel for severe service, and step down to Incoloy where it is enough.
| Point | Inconel Pipes | Incoloy Pipes |
|---|---|---|
| Alloy base | Nickel-chromium | Nickel-iron-chromium |
| Nickel content | About 45% to 72% | About 30% to 46% |
| Iron content | Low to moderate | High |
| High-temperature strength | Higher | Good (800H, 800HT) |
| Oxidation resistance | Excellent (601, 690) | Good |
| Seawater and pitting resistance | Excellent (625) | Moderate (825) |
| Cost | Higher | Lower |
| Common standards | ASTM B167, B444 | ASTM B407, B423 |
| Typical use | Furnaces, offshore, sour gas, power | Heaters, acid lines, steam |
Inconel Pipes Chemical Composition
Chemistry gives each grade its heat and corrosion resistance. The table shows the ASTM limits, one element per row. Values are percentage by weight, maximum unless shown as a range or marked "min".
| Element | Inconel 600 | Inconel 601 | Inconel 617 | Inconel 625 | Inconel 690 |
|---|---|---|---|---|---|
| Nickel (Ni) | 72.0 min | 58.0–63.0 | 44.5 min | 58.0 min | 58.0 min |
| Chromium (Cr) | 14.0–17.0 | 21.0–25.0 | 20.0–24.0 | 20.0–23.0 | 27.0–31.0 |
| Iron (Fe) | 6.0–10.0 | Balance | 3.0 | 5.0 | 7.0–11.0 |
| Molybdenum (Mo) | — | — | 8.0–10.0 | 8.0–10.0 | — |
| Cobalt (Co) | — | — | 10.0–15.0 | 1.0 | — |
| Niobium + Tantalum | — | — | — | 3.15–4.15 | — |
| Aluminium (Al) | — | 1.0–1.7 | 0.8–1.5 | 0.40 | — |
| Titanium (Ti) | — | — | 0.6 | 0.40 | — |
| Copper (Cu) | 0.50 | 1.0 | 0.50 | — | 0.50 |
| Carbon (C) | 0.15 | 0.10 | 0.05–0.15 | 0.10 | 0.05 |
| Manganese (Mn) | 1.0 | 1.0 | 1.0 | 0.50 | 0.50 |
| Silicon (Si) | 0.50 | 0.50 | 1.0 | 0.50 | 0.50 |
| Sulphur (S) | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 |
| Boron (B) | — | — | 0.006 | — | — |
Inconel Pipes Mechanical Properties
Mechanical properties depend on the grade and the heat-treated condition. The table gives minimum values for annealed or solution annealed pipe, with one property per row.
| Property | Inconel 600 | Inconel 601 | Inconel 617 | Inconel 625 | Inconel 690 |
|---|---|---|---|---|---|
| Tensile strength, MPa (ksi) | 550 (80) | 550 (80) | 655 (95) | 827 (120) | 586 (85) |
| Yield strength 0.2%, MPa (ksi) | 240 (35) | 205 (30) | 240 (35) | 414 (60) | 241 (35) |
| Elongation (%) | 30 | 30 | 35 | 30 | 30 |
Inconel Pipes Size and Weight Chart
Weight depends on OD, wall thickness and alloy density. Inconel 625 has a density of about 8.44 g/cm³, so we use this formula:
OD and wall are in mm. Example: NPS 4 Sch 40S is (114.3 − 6.02) × 6.02 × 0.02652 = 17.29 kg/m. Multiply by length for total weight. For other grades, swap in the factor from the second table below.
| NPS | OD (mm) | Sch 10S (kg/m) | Sch 40S (kg/m) | Sch 80S (kg/m) | Sch 160 (kg/m) |
|---|---|---|---|---|---|
| 1/2" | 21.3 | 1.07 | 1.36 | 1.74 | 2.09 |
| 1" | 33.4 | 2.25 | 2.69 | 3.48 | 4.56 |
| 2" | 60.3 | 4.23 | 5.85 | 8.05 | 11.95 |
| 3" | 88.9 | 6.94 | 12.14 | 16.43 | 22.96 |
| 4" | 114.3 | 9.00 | 17.29 | 24.00 | 36.07 |
| 6" | 168.3 | 14.87 | 30.39 | 45.77 | 72.66 |
| 8" | 219.1 | 21.47 | 45.76 | 69.52 | 119.66 |
| 10" | 273.1 | 29.88 | 64.86 | 87.70 | 185.33 |
| 12" | 323.9 | 38.70 | 79.45 | 104.81 | 256.77 |
Grade Weight Factors
| Grade | Density (g/cm³) | Factor |
|---|---|---|
| Inconel 600 | 8.47 | 0.02661 |
| Inconel 617 | 8.36 | 0.02626 |
| Inconel 625 | 8.44 | 0.02652 |
| Inconel 601 | 8.11 | 0.02548 |
| Inconel 690 | 8.19 | 0.02573 |
Available Sizes, Dimensions and Schedules
Inconel Pipes follow ASME B36.19M for Sch 10S, 40S and 80S, and ASME B36.10M for Sch 160. A schedule is a wall-thickness code, so for the same OD a higher number means a thicker wall. Other sizes and walls can be quoted on request. Confirm the wall against the design code, the operating temperature and your corrosion allowance.
| NPS | OD (mm) | Sch 10S (mm) | Sch 40S (mm) | Sch 80S (mm) | Sch 160 (mm) |
|---|---|---|---|---|---|
| 1/2" | 21.3 | 2.11 | 2.77 | 3.73 | 4.78 |
| 1" | 33.4 | 2.77 | 3.38 | 4.55 | 6.35 |
| 2" | 60.3 | 2.77 | 3.91 | 5.54 | 8.74 |
| 3" | 88.9 | 3.05 | 5.49 | 7.62 | 11.13 |
| 4" | 114.3 | 3.05 | 6.02 | 8.56 | 13.49 |
| 6" | 168.3 | 3.40 | 7.11 | 10.97 | 18.26 |
| 8" | 219.1 | 3.76 | 8.18 | 12.70 | 23.01 |
| 10" | 273.1 | 4.19 | 9.27 | 12.70 | 28.58 |
| 12" | 323.9 | 4.57 | 9.53 | 12.70 | 33.32 |
Tolerances on OD, wall and length follow ASTM B829 for seamless pipe and ASTM B775 for welded pipe, and they depend on pipe size.
Common Materials in Inconel Pipes
We manufacture and supply the commonly specified materials used in Inconel Pipes, with grades selected according to temperature, fluid and pressure.
UNS N06600 (2.4816): Inconel 600, with about 72% nickel and 16% chromium. It is widely used for furnaces, heat treatment and chloride exposure.
UNS N06601 (2.4851): Inconel 601, with added aluminium for strong scale resistance in hot gas.
UNS N06617 (2.4663): Inconel 617, with cobalt and molybdenum for strength at the highest temperatures.
UNS N06625 (2.4856): Inconel 625, with about 9% molybdenum and 3.5% niobium for strength and pitting resistance.
UNS N06690 (2.4642): Inconel 690, with about 30% chromium for sulphur, ash and nitric acid duty.
These grades form part of our supply range as Inconel Pipes Suppliers, with different sizes, schedules and finishes available according to the required specification.
Inconel Pipes We Manufacture and Supply
We make Inconel Pipes for the jobs below. The grade follows the temperature and the fluid.
| Service | Typical grade | Typical form |
|---|---|---|
| Furnace and heat treatment piping | Inconel 600, 601 | Seamless or welded |
| Seawater and offshore lines | Inconel 625 | Seamless |
| Sour gas and chemical process lines | Inconel 625 | Seamless |
| High-temperature power plant piping | Inconel 617, 625 | Seamless |
| Steam generator and incinerator service | Inconel 690, 601 | Seamless |
| Nitric acid and fertiliser plant lines | Inconel 690 | Seamless |
Applications of Inconel Pipes
- Oil and gas: Sour-service flowlines, wellhead and process piping.
- Power generation: High-temperature steam and boiler piping.
- Petrochemical plants: Furnace headers, heaters and reformer-side piping.
- Offshore and marine: Seawater, firewater and chemical injection lines.
- Chemical processing: Hot, corrosive process lines.
- Waste-to-energy and incineration: Hot, corrosive flue gas lines.
- Fertiliser plants: Nitric acid and high-temperature ammonia lines.
- Heat treatment plants: Furnace and quench-line piping.
- Pulp and paper: Recovery boiler and chemical piping.
Why Choose Us as Your Inconel Pipes Manufacturer and Supplier in India?
With experience in the pipes and tubes industry since 2005, we manufacture and supply Inconel Pipes for high-temperature, corrosive and demanding industrial applications. Our facility near Mumbai supports a wide range of Inconel pipe sizes, outside diameters, wall thicknesses and schedules. With a manufacturing and export capacity of 100 tons per month, we serve domestic and international customers across various industries. Popular sizes may also be available from ready stock, subject to availability.
As an Inconel Pipes Supplier in India, we focus on product quality, material traceability and reliable order execution. Every order includes EN 10204 3.1 certification, while 3.2 certification and third-party inspection can be arranged on request. Our certifications and approvals include ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, PED 2014/68/EU and TÜV approvals.
Our Mumbai export office coordinates international orders, export packing, shipping documentation and dispatch arrangements. With supply reaching more than 85 countries, we support customers looking for an experienced Inconel Pipes Manufacturer and Supplier in India for heat-resistant, seawater and sour-service piping requirements.
Countries We Export Inconel Pipes To
As an Inconel Pipes Manufacturer and Supplier in India, we export Inconel Pipes to 85+ countries, serving oil and gas, power generation, petrochemical and marine industries. Our monthly manufacturing and export capacity of 100 tons supports domestic and international project requirements.
Middle East: UAE, Saudi Arabia, Qatar, Oman, Kuwait and Bahrain.
Europe: Germany, Italy, UK, Netherlands, France, Norway and Spain.
Asia-Pacific: Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan and Australia.
Americas: USA, Canada, Mexico and Brazil.
Africa: South Africa, Nigeria, Egypt and Kenya.
We provide EN 10204 3.1 material test certificates with every order. EN 10204 3.2 certification and third-party inspection can be arranged on request. Export packing and shipping documentation are managed according to destination and project requirements, ensuring smooth coordination for international Inconel pipe orders.
Inconel Pipes FAQs
Common questions about Inconel pipe grades, temperature service, welding, dimensions, and supply.
Which Inconel grade should I choose?
Choose Inconel 625 for seawater, offshore and sour-gas service, and Inconel 600 for general heat and chloride exposure. Choose 601 for hot, oxidising gas, 617 for the highest temperatures, and 690 for nitric acid, steam and sulphur-laden gas.
How do Inconel 600 and 601 differ?
Inconel 601 has more chromium and added aluminium, which gives it better oxidation and scale resistance at very high temperature. Inconel 600 resists chlorides and suits general heat and chemical duty.
When should I choose Inconel 625 over Inconel 600?
Choose 625 when you need higher strength or better resistance to pitting and crevice corrosion, as in seawater and sour gas. Inconel 600 costs less and suits milder duty.
Which Inconel grade handles the highest temperatures?
Inconel 601 and 617 are the usual choices at the top of the temperature range. 601 is picked for oxidation and scale resistance, and 617 for strength under load. Check the allowable stress at your metal temperature in the design code.
How should I weld Inconel pipes?
Use TIG welding with a matching filler, such as ERNiCrMo-3 for Inconel 625, ERNiCr-3 for Inconel 600, ERNiCrFe-11 for Inconel 601, ERNiCrFe-7 for Inconel 690 and ERNiCrCoMo-1 for Inconel 617. Keep the joint clean of oil, paint and marking ink, and use low heat input.
What sizes and schedules can I order?
The tables above cover NPS 1/2 to 12 in Sch 10S, 40S, 80S and 160. Other sizes and walls can be quoted on request, and popular sizes sit in ready stock, subject to availability.
What tolerances apply to OD and wall?
ASTM B829 sets them for seamless pipe and ASTM B775 for welded pipe. The limits depend on pipe size.
How do I calculate the weight of an order?
Use Weight (kg/m) = (OD − Wall) × Wall × factor, with OD and wall in mm and the factor from the grade table above. Multiply by length and quantity. Real weight varies slightly with wall tolerance.
What affects the price of Inconel Pipes?
Grade is the main factor, because nickel, chromium, molybdenum and cobalt prices move the cost. Size, wall, seamless or welded form, testing, quantity, inspection and freight also count.