Nickel / Nickel Alloy Tube
Monel, Inconel, Incoloy and Hastelloy grade seamless tube for the hardest corrosion duty
What Nickel / Nickel Alloy Tube Is
When a stream is too hot, too reducing or too aggressive for stainless or duplex, the tube moves to a nickel base alloy.
The grades we supply cover the usual industrial choices: Monel 400 for hydrofluoric and seawater service, Inconel 600 and 625 for high temperature and mixed acid, Incoloy 800H and 825 for furnace and sulphuric duty, Hastelloy C276 for reducing and oxidising media in the same line.
Tube is produced to the ASTM B series specifications and, for casing and tubing stock, to API 5CRA / ISO 13680.
Why Engineers Specify It
Full nickel grade coverage in one order
From commercially pure Nickel 200 through Monel, Inconel, Incoloy and Hastelloy to Alloy 20, 28, 31 and G series.
Specification led production
Each grade is produced to its own B series standard rather than a generic tube spec.
Corrosion resistant alloy casing stock
API 5CRA / ISO 13680 material for casing, tubing and coupling stock in oil and gas wells.
Same sizes as our stainless tube
12 mm to 76.2 mm tube and pipe to 168.3 mm keeps bundle design consistent across alloy choices.
Where It Is Used
- Boilers
- Heaters
- Heat exchangers
- Condensers
- Instrumentation
- Process pipe lines
- Casing, tubing and coupling stock

Buyers Who Come to Us for This Tube
Sour service oil and gas operators
Corrosion resistant alloy tubulars to API 5CRA / ISO 13680.
Acid plant and fertiliser contractors
Sulphuric, phosphoric and mixed acid duty where stainless fails.
High temperature process plant builders
Furnace and reformer service that needs Incoloy 800H or Inconel 617.
What Goes Wrong Without It
Reducing acid attacking stainless tube
Hastelloy B2, B3 and C276 are specified for reducing media where chromium alloys are not enough.
Creep and oxidation at furnace temperature
Incoloy 800H, Inconel 601, 617 and 625 are supplied for high temperature strength.
Seawater and hydrofluoric service
Monel 400 and K500 remain the reference grades for this duty.
Nickel / Nickel Alloy Tube Dimensions
These are the ranges our production lines run. Sizes outside them are quoted case by case rather than assumed.
| Item | Specification |
|---|---|
| Tube outside diameter | 1/2" - 3" (12 mm - 76.2 mm) |
| Tube wall thickness | 0.02" - 0.5" (0.5 mm - 12.0 mm) |
| Tube length | up to 105 ft (32 m) |
| Pipe size | NPS 1/2" - 6" (21.34 mm - 168.3 mm) |
| Pipe wall thickness | Sch10 - Sch80 (2.11 mm - 12.7 mm) |
| Pipe length | up to 98 ft (30 m) |
Materials
| Component | Materials available |
|---|---|
| Nickel and nickel copper | Nickel 200 (N02200), Monel 400 (N04400), K500 (N05500) |
| Inconel | 600 (N06600), 601 (N06601), 602 (N06025), 617 (N06617), 625 (N06625), 690 (N06690), X750 (N07750) |
| Incoloy | 800 / 800H (N08810, N08811), 825 (N08825) |
| Hastelloy | C276 (N10276), C22 (N06022), C200 (N06200), B2 (N10665), B3 (N10675), G3 (N06985), G30 (N06030), G35 (N06035) |
| Other corrosion resistant alloys | Alloy 20 (N08010), Alloy 28 (N08028), Alloy 31 (N08031) |
Specifications We Produce To
| Standard | Scope |
|---|---|
| ASTM/ASME B/SB163 | Seamless nickel and nickel alloy condenser and heat exchanger tubes |
| ASTM/ASME B/SB165 | Nickel-copper alloy (UNS N04400) seamless tube and pipe |
| ASTM/ASME B/SB167 | Nickel-chromium-iron alloys and nickel-cobalt-molybdenum alloy seamless pipe and tube |
| ASTM/ASME B/SB423 | Nickel-iron-molybdenum-copper alloy (N08825, N08221) seamless pipe and tube |
| ASTM/ASME B/SB444 | Nickel-chromium-molybdenum-columbium alloy (N06625) pipe and tube |
| ASTM/ASME B/SB407 | Nickel-iron-chromium alloy seamless pipe and tube |
| ASTM/ASME B/SB690 | Iron-nickel-chromium-molybdenum alloy (N08366, N08367) seamless pipe and tube |
| ASTM/ASME B/SB622 | Seamless nickel and nickel-cobalt alloy pipe and tube |
| API 5CRA / ISO 13680 | Corrosion resistant alloy seamless tubes for casing, tubing and coupling stock |
How It Is Made
Nickel / Nickel Alloy Tube on the Shop Floor



Inspection and Certification
Every tube passes eddy current and hydrostatic testing, with tensile, flattening, flaring, hardness and chemical analysis carried out on our own equipment. Fin pitch, fin height and finned length are verified as dimensional items in their own right.
The company holds ISO 9001:2015, CE certificate, Production licence for pressure pipe.
What Can Be Changed
- Base tube material and wall thickness within the range above
- Fin material, fin pitch and fin height to the bundle design
- Finned length and bare end length for the tubesheet joint
- Marking, packing and certificate scope for the destination market
Compared With the Alternatives
Nickel alloys cost several times more per metre than stainless or duplex, so they are specified where the service data leaves no alternative: reducing acids, high temperature creep, hydrofluoric or high velocity seawater. For chloride cracking alone, duplex is usually the economic answer.
Use Guide
- Send the full stream composition, temperature and velocity - nickel grade selection is driven by the medium, not by a general corrosion class.
- Name the specification (for example B163 against B622) because test and heat treatment requirements differ.
- For oil and gas tubulars, state the API 5CRA / ISO 13680 requirements with the enquiry.
Nickel / Nickel Alloy Tube FAQ
Which nickel alloy grades do you supply?
Nickel 200, Monel 400 and K500, Inconel 600, 601, 602, 617, 625, 690 and X750, Incoloy 800, 800H and 825, Hastelloy C276, C22, C200, B2, B3, G3, G30 and G35, plus Alloy 20, 28 and 31.
Do you supply to API 5CRA?
Yes, corrosion resistant alloy seamless tubes for casing, tubing and coupling stock are produced to API 5CRA / ISO 13680.
What sizes are available?
Tube 12 mm to 76.2 mm outside diameter, pipe NPS 1/2" to 6", tube length to 32 m.
Can nickel alloy tube be finned?
Yes. Nickel and nickel alloy base tubes are finned on both the mechanical and the welded fin lines.
Often Compared With
Duplex Stainless Steel Tube
Duplex and super duplex seamless tube and pipe to ASTM A789 and A790
Tube outside diameter: 1/2" - 3" (12 mm - 76.2 mm) · Tube wall thickness: 0.02" - 0.5" (0.5 mm - 12.0 mm)
Stainless Steel Tube
Austenitic and super austenitic seamless tube and pipe to ASTM A213, A269 and A312
Tube outside diameter: 1/2" - 3" (12 mm - 76.2 mm) · Tube wall thickness: 0.02" - 0.5" (0.5 mm - 12.0 mm)
"G" Embedded Fin Tube
Fin strip rolled into a machined groove in the tube wall for permanent metal-to-metal contact
Base tube diameter: 16 mm - 80 mm · Base tube wall thickness: 1.65 mm - 4.0 mmIndustries using this tube
Related reading
Quote Nickel / Nickel Alloy Tube From Your Drawing
Send base tube size, wall thickness, fin geometry, material and length. You get a quotation against the drawing, not a catalogue page.
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