Table of Contents
- Introduction to Nickel Alloy Piping
- Nickel Alloy Pipe at a Glance
- Nickel Alloy Pipe Sizes & Dimensions
- Standard Specifications (ASTM/ASME)
- Range of Nickel Alloy Pipes and Tubes We Manufacture
- Available Stock of Nickel Alloy Pipes
- Product Grades & Classifications
- Chemical Composition (Typical %)
- Mechanical Properties
- Nickel Alloy Pipe Weight Chart
- Pipe Schedule & Wall Thickness
- Industries & Applications
- Inspection & Test Reports
- Stocking Distributor for Premium Manufacturers
- Nickel Alloy Pipe Price List
- Why Choose Stellar Alloys?
- Frequently Asked Questions
Introduction to Nickel Alloy Piping
Stellar Alloys is an industry leader producer and distributor of Nickel Alloy Pipes and Tubes worldwide. Our niche is in the area of superalloys that are created to serve in the most challenging conditions on earth where plain stainless steels cannot be used. We can offer you high-performance Inconel, Monel, Hastelloy and Incoloy grades that can be used in applications with temperatures over 1000C (1832F) and highly corrosive acidic environments, such as NACE MR0175 to be used in sour service.
Nickel Alloy Pipe at a Glance
| Feature | Details |
| Product Name | Nickel Alloy Pipes, Tubes, and Tubing |
| Key Grades | Inconel 600/625, Monel 400/K500, Hastelloy C276, Incoloy 825, Nickel 200 |
| Standards | ASTM B161, B163, B165, B444, B622, B829, ASME SB Series |
| Size Range | Seamless: 1/8″ to 12″ NB | Welded: 6″ to 48″ NB |
| Wall Thickness | SCH 5S, 10S, 40S, 80S, 160, XXS (0.5mm to 50mm) |
| Length | Single Random, Double Random, Cut Lengths (up to 12m) |
| Applications | Sour Gas Service, Aerospace, Chemical Processing, Marine Engineering |
Nickel Alloy Pipe Sizes & Dimensions
Stellar Alloys supplies a comprehensive range of sizes in both seamless and welded configurations, adhering to ANSI/ASME B36.19 and B36.10 dimensional standards.
Nickel Alloy Seamless Pipe Size Range
| Product Type | Outside Diameter (OD) | Wall Thickness | Length |
| Seamless Pipe | 1/8″ NB to 12″ NB (10.29mm – 323.85mm) | SCH 10S to SCH XXS | SRL, DRL, Custom up to 12M |
| Instrument Tubing | 1/16″ OD to 2″ OD (1.59mm – 50.8mm) | 0.5mm to 5.0mm | Coils or Straight Lengths |
Nickel Alloy Welded Pipe Size Range
| Product Type | Outside Diameter (OD) | Wall Thickness | Method |
| Welded (ERW) Pipe | 1/2″ NB to 24″ NB | SCH 5S to SCH 80S | Longitudinal Seam |
| EFW (Electric Fusion) | 6″ NB to 48″ NB | 5mm to 50mm | With/Without Filler Metal |
Standard Specifications (ASTM/ASME)
Our pipes are manufactured to rigorous international standards. Below are the primary specifications for our Nickel Alloy products.
| Specification | Alloy Grade | Description |
| ASTM B161 / ASME SB 161 | Nickel 200, 201 | Standard Specification for Nickel Seamless Pipe and Tube. |
| ASTM B163 / ASME SB 163 | Ni 200, Monel, Inconel | Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes. |
| ASTM B165 / ASME SB 165 | Monel 400 | Nickel-Copper Alloy (UNS N04400) Seamless Pipe and Tube. |
| ASTM B444 / ASME SB 444 | Inconel 625 | Nickel-Chromium-Molybdenum-Columbium Alloys Pipe and Tube. |
| ASTM B622 / ASME SB 622 | Hastelloy C276, C22 | Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube. |
| ASTM B619 / ASME SB 619 | Hastelloy Grades | Welded Nickel and Nickel-Cobalt Alloy Pipe. |
| ASTM B829 | All Grades | General Requirements for Nickel and Nickel Alloys Seamless Pipe. |
Range of Nickel Alloy Pipes and Tubes We Manufacture

Nickel Alloy Tubes

Nickel Alloy Pipes

Nickel Redrawn Tubing

Pure Nickel Pipe

Nickel 200 Pipe

Nickel 201 Pipe

Nickel Alloy Boiler Tube

Nickel Alloy Heater Tube

Nickel Heat Exchanger Tube

Nickel Alloy Condenser Tube

Nickel Instrumentation Tube

Nickel Alloy Seamless Pipes

Nickel Alloy Welded Pipe

Nickel 200 Seamless Tube

Nickel 201 Seamless Tube
Available Stock of Nickel Alloy Pipes
We supply a vast array of pipe configurations to suit specific project requirements. Our inventory includes:
- Nickel Alloy Seamless Pipe
- Nickel Alloy Welded Pipe (ERW)
- Nickel Alloy EFW Pipe (Electric Fusion Welded)
- Inconel 625 Seamless Pipe
- Monel 400 Hydraulic Pipe
- Hastelloy C276 Heat Exchanger Tube
- Nickel Alloy Rectangular Pipe
- Nickel Alloy Square Pipe
- Incoloy 825 Instrumentation Tubing
- Nickel Alloy Cold Drawn Pipe
- Nickel Alloy Hot Finished Pipe
- Nickel Alloy Polished Pipe
- Nickel Alloy Capillary Tube
- Nickel Alloy High Pressure Pipe
- ASTM B161 Nickel 200 Pipe
- ASTM B622 Hastelloy Pipe
- Annealed & Pickled Nickel Pipe
- Bright Annealed Nickel Tube
- Inconel 718 Aircraft Tubing
- Monel K500 Marine Pipe
Product Grades & Classifications
Inconel Family (Ni-Cr)
Inconel 600, 601, 625, 718. Known for high-temperature oxidation resistance and extreme strength. Used in aerospace and chemical processing.
View Inconel Pipes & Tubes →
Monel Family (Ni-Cu)
Monel 400, K500. Excellent resistance to seawater, steam, and hydrofluoric acid. Standard for marine engineering.
View Monel Pipes & Tubes→
Hastelloy Family (Ni-Mo-Cr)
Hastelloy C-276, C-22, B-2. The ultimate in corrosion resistance against wet chlorine, acids, and hypochlorites.
View Hastelloy Pipes & Tubes →
Incoloy & Nickel
Incoloy 800/800H/825, Nickel 200/201. Cost-effective solutions for high-temp carburization and caustic alkali handling.
View Incoloy & Nickel Pipes →
Chemical Composition (Typical %)
| Alloy | UNS | Ni | Cr | Mo | Fe | Other |
| Inconel 625 | N06625 | 58.0 min | 20-23 | 8-10 | 5.0 max | Nb 3.15-4.15 |
| Monel 400 | N04400 | 63.0 min | – | – | 2.5 max | Cu 28-34 |
| Hastelloy C276 | N10276 | Bal | 14.5-16.5 | 15-17 | 4-7 | W 3.0-4.5 |
| Incoloy 825 | N08825 | 38-46 | 19.5-23.5 | 2.5-3.5 | Bal | Cu 1.5-3.0 |
| Nickel 200 | N02200 | 99.0 min | – | – | 0.4 max | – |
Mechanical Properties
| Alloy | Tensile Strength (min) | Yield Strength (min) | Elongation (%) |
| Inconel 625 | 120 ksi (827 MPa) | 60 ksi (414 MPa) | 30 |
| Monel 400 | 70 ksi (483 MPa) | 25 ksi (172 MPa) | 35 |
| Hastelloy C-276 | 100 ksi (690 MPa) | 41 ksi (283 MPa) | 40 |
| Incoloy 825 | 85 ksi (586 MPa) | 35 ksi (241 MPa) | 30 |
| Nickel 200 | 55 ksi (380 MPa) | 15 ksi (105 MPa) | 40 |
Nickel Alloy Pipe Weight Chart
Approximate weights for Nickel Alloy pipes based on Schedule 40 (Standard).
Note: Weights may vary slightly depending on the specific density of the alloy (e.g., Inconel 625 density is 8.44 g/cm³, Monel 400 is 8.80 g/cm³).
| NPS Size | OD (mm) | Wall (mm) | Weight (kg/m) | Weight (lb/ft) |
| 1/2″ | 21.34 | 2.77 | 1.27 | 0.85 |
| 3/4″ | 26.67 | 2.87 | 1.69 | 1.13 |
| 1″ | 33.40 | 3.38 | 2.50 | 1.68 |
| 1-1/2″ | 48.26 | 3.68 | 4.05 | 2.72 |
| 2″ | 60.33 | 3.91 | 5.44 | 3.65 |
| 3″ | 88.90 | 5.49 | 11.29 | 7.58 |
| 4″ | 114.30 | 6.02 | 16.07 | 10.79 |
| 6″ | 168.28 | 7.11 | 28.26 | 18.97 |
| 8″ | 219.08 | 8.18 | 42.55 | 28.55 |
Pipe Schedule & Wall Thickness
Wall thickness chart for Nickel Alloy Seamless Pipes according to ANSI B36.10.
| NPS | OD (Inch) | SCH 10S (in) | SCH 40S (in) | SCH 80S (in) | SCH 160 (in) | XXS (in) |
| 1″ | 1.315 | 0.109 | 0.133 | 0.179 | 0.250 | 0.358 |
| 2″ | 2.375 | 0.109 | 0.154 | 0.218 | 0.344 | 0.436 |
| 3″ | 3.500 | 0.120 | 0.216 | 0.300 | 0.438 | 0.600 |
| 4″ | 4.500 | 0.120 | 0.237 | 0.337 | 0.531 | 0.674 |
| 6″ | 6.625 | 0.134 | 0.280 | 0.432 | 0.719 | 0.864 |
Industries & Applications

- Oil & Gas (Sour Service): Downhole tubing, wellhead components, and subsea piping handling high-pressure sour gas (H2S). NACE MR0175 compliant grades available.
- Chemical Processing: Reactors and transfer piping for sulfuric acid, hydrochloric acid, and caustic soda. Monel 400 is standard for HF acid alkylation.
- Aerospace & Power: Gas turbine engine ducts and nuclear steam generator tubing requiring high creep strength (Inconel 600/625).
- Marine Engineering: Seawater piping and desalination. Monel 400 and Hastelloy provide immunity to chloride stress corrosion cracking.
Inspection & Test Reports
Stellar Alloys ensures complete transparency and quality assurance. Every order is accompanied by comprehensive documentation:
- Mill Test Certificates (MTC) acc. to EN 10204 3.1
- EN 10204 3.2 Third Party Inspection Reports
- NABL Approved Lab Test Reports
- Positive Material Identification (PMI) Report
- Visual Inspection Reports
- Destructive Test Reports (Tensile, Hardness, Impact)
- Non-Destructive Test Reports (UT, RT, Eddy Current)
- Intergranular Corrosion (IGC) Test Reports
- NACE MR0175 / ISO 15156 Compliance Certificate
- Fumigation Certificates & Heat Treatment Charts
Stocking Distributor for Premium Manufacturers
We stock and supply Nickel Alloy Pipes from world-renowned mills to ensure the highest quality:
- Special Metals Corporation (USA)
- Haynes International (USA)
- VDM Metals (Germany)
- Nippon Steel Corporation (Japan)
- Sumitomo Metals (Japan)
- Sandvik Materials Technology (Sweden)
Nickel Alloy Pipe Price List
Prices for Nickel Alloys fluctuate based on the London Metal Exchange (LME) Nickel prices. Below is an indicative range. Please contact us for a valid quotation.
| Product | Specification | Price Estimate |
| Inconel 625 Seamless Pipe | ASTM B444 UNS N06625 | Contact for Price |
| Monel 400 Pipe | ASTM B165 UNS N04400 | Contact for Price |
| Hastelloy C276 Pipe | ASTM B622 UNS N10276 | Contact for Price |
Why Choose Stellar Alloys?
Stellar Alloys is a leader in specialty metal distribution. When you choose us for your nickel alloy pipe needs, you gain a partner dedicated to technical excellence.
- Manufacturing Excellence: Advanced VIM/VAR melting, cold-pilgering, and precision drawing.
- Certified Quality: 100% PMI verification and Ultrasonic testing on seamless pipes.
- Global Logistics: Expedited air freight for emergency shutdowns.
- Technical Expertise: Assistance with material selection (e.g., C-276 vs C-22).
Frequently Asked Questions
Inconel (Ni-Cr) is best for high heat and oxidation. Monel (Ni-Cu) is best for seawater and hydrofluoric acid resistance.
It is the standard for extremely aggressive chemical environments, including wet chlorine, hypochlorites, and strong acids.
Yes, we supply NACE MR0175 / ISO 15156 compliant pipes for sour service applications in Oil & Gas.
We supply both. Seamless (ASTM B161, B622) for high pressure/critical use, and Welded (ASTM B619) for cost-effective large diameter piping.
Ready to Order or Need a Quote?
Contact Stellar Alloys today for premium Nickel Alloy piping solutions. Our experts are ready to solve your corrosion challenges.
Email: vaman@stellaralloys.com | Phone: +91 8850508307
