Midland Alloys Inc. is a reliable producer and supplier of Incoloy 625 Tubes as it provides a high-performance nickel-chromium-molybdenum alloy that is known for its exceptional mechanical strength, and resistance to corrosion in a wide range of temperatures. These tubes are ideal for demanding environments due to their high nickel content, which enhances resistance to chloride-ion stress corrosion cracking. Available in seamless, welded, ERW, and fabricated forms, Inconel 625 Tubes comply with ASTM B444, ASTM B705, ASME SB444, and DIN/EN standards. Their chemical composition consists of nickel (58% min), chromium (20-23%), molybdenum (8-10%) and niobium, all of which act together to offer excellent oxidation and pitting resistance.  These tubes have excellent fatigue and creep resistance and a minimum yield strength of 460 MPa. We  supply an extensive range of sizes for prompt delivery and offers these tubes in round, square, rectangular, coiled, capillary, and U-bend forms. All the products are ISO-certified and can be supplied for worldwide export with complete test reports and documentation.

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inconel-625-tubes

Benefits of Inconel 625 Tubes

Inconel 625 Tubes offer several performance advantages in hostile environments. Tubes that are constructed to handle harsh conditions are suitable for use in heat exchangers, chemical plants and aerospace industries. Their pressure strength and chemical stability make them a preferred option for major systems.

  • Ensures dependable performance by maintaining mechanical strength even at high pressure and temperatures.
  • It offers outstanding protection against stress-corrosion cracking, pitting, and crevice corrosion in seawater, acids, and oxidizing agents.
  • Suitable for high-temperature use, it maintains its stability and resists scaling at temperatures as high as 1000°C.
  • Easy to fabricate and weld without requiring post-weld heat treatment, reducing fabrication time.
  • Suitable for offshore, chemical, nuclear, and aerospace sectors.
  • Maintains a long service life even in harsh thermal and chemical conditions.

Inconel 625 Tubes Specifications

Finish
Sizes in Stock

Seamless Tube OD : 1/8 -12" NPS
Welded Tube OD : 6.00 mm OD up to 914.4 mm OD
EFW Tube Size : 3.35 mm OD To 101.6 mm OD

ASTM Standard
Standard

ASME SB163 / ASME SB167 / ASTM B163 / ASTM B167

Process
Manufacturing Process

Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded

Form
Form

Round, Square, Rectangular, Hydraulic Etc

Length
Length

Single Random, Double Random, Standard & Cut length Tube

End Icon
End

Plain End, Beveled End, Treaded Tube

Schedule
Schedule

SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS

Finish
Surface Finish

2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Tubes, Finish as per customer Requirements

Contact Midland Alloys Inc. for Your Inconel 625 Tubes Needs

Contact us today to discuss how Inconel 625 Tubes can benefit your application. Whether you need guidance in selecting the right Tubes or have specific requirements, our team of experts is here to help you find the optimal solution.

Technical Details & Delivery Condition

Ni Fe C Mn Si Cr2 Mo Co Al Ti Nb + Ta P S
58.0 min 5.0 max 0.10 max 0.50 max 0.50 max 20.0-23.0 8.0-10.0 1.0 max 0.40 max 0.40 max 3.15–4.15 0.015 max 0.015 max
STANDARDWERKSTOFF NR.UNSJISBSGOSTAFNOREN
Inconel 6252.4856N06625NCF 625NA 21ХН75МБТЮNC22DNB4MNiCr22Mo9Nb

Inconel 625 Tubes Grades We Offer

Difference Between Inconel 625 Tubes vs Inconel 600 Tubes

Though both alloys are members of the Inconel family, Inconel 625 Tubes are significantly stronger and more resistant to corrosion due to the addition of molybdenum and niobium, particularly in high-chloride or oxidizing environments. Inconel 600 Tubes are mostly nickel and chromium-based, offering good resistance to oxidation and moderate corrosion, but they lack the strength and stress-corrosion resistance provided by the solid-solution and precipitation hardening mechanisms in Inconel 625. This makes 625 more suitable for high-pressure, high-heat, and aggressive chemical settings.

Round Bar

Round Bar

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Analytic

Analytic

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Cut to Length

Cut to Length

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Centering

Centering

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Heating

Heating

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Perforation

Perforation

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Inspection of Size

Inspection of Size

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Pickling

Pickling

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Inspection of Surface

Inspection of Surface

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Lubricating

Lubricating

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Cold Drawing (Cold Rolling)

Cold Drawing (Cold Rolling)

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Degreasing

Degreasing

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Annealing

Annealing

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Straightening

Straightening

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Cut

Cut

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Pickling / Passivating

Pickling / Passivating

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Inspection

Inspection

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Analytic

Analytic

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Marking

Marking

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Packing & Shipping

Packing & Shipping

Applications of Inconel 625 Tubes

Inconel 625 Tubes are mostly used in industries where conditions are extreme. They are extensively used in chemical processing facilities for piping and heat exchangers owing to their ability to withstand corrosive acids such as nitric, and phosphoric. In the aerospace industry, the tubes find application in turbine shrouds and exhaust systems. Their suitability for use in marine atmospheres and resistance to saltwater qualify them for offshore oil and gas equipment, seawater piping, and riser systems. They also find use in nuclear reactors and pollution-control devices, where reliability and long service life are essential.

Why Choose Midland Alloys Inc. for Inconel 625 Tubes

Midland Alloys Inc. is known for delivering precise, high-quality Inconel 625 Tubes that meet international standards and project requirements. We supply a full range of forms and sizes with full traceability and test documentation, including hydrostatic testing, ultrasonic examination and PMI (Positive Material Identification). Each batch is produced under rigorous quality control and is in accordance with ASTM, ASME and DIN specifications. Backed by ISO certification, extensive export experience to the world, and availability of ready stock, Midland Alloys Inc. assures uninterrupted performance, prompt delivery, and reliable supply for mission-critical projects.

FAQs

Yes, Inconel alloys such as Inconel 625 can be welded using standard TIG, MIG and SMAW processes without post-weld heat treatment.

Inconel 625 has high fatigue strength (~275 MPa at room temperature) compared to numerous stainless steel,  and rival nickel alloys under cyclic stress.

Inconel 625 is solid solution strengthened (by molybdenum and niobium) and precipitation hardened to increase its corrosion resistance and high-temperature strength.

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