Monel 400 Pipes & Tubes – Seamless and Welded, ASTM B165

Monel 400 Pipe & Tube (UNS N04400) – Stockist, Supplier and Processor in Mumbai Since 1992

Monel 400 pipe and tube carry seawater, brine, hydrofluoric acid and alkalis in systems where copper-nickel or stainless steel would erode or crack. Ganesh Metals, a stockist, supplier and processor in Mumbai since 1992, supplies Monel 400 seamless pipe and tube to ASTM B165 / ASME SB165, welded pipe to ASTM B725 and welded tube to ASTM B730, plus matching buttweld fittings to ASTM B366 and flanges and forgings to ASTM B564. Heat-exchanger and condenser tubes, instrument tubing and process pipe can be supplied in cut lengths. Every length carries its heat number and an EN 10204 3.1 mill test certificate.

Monel piping is common in seawater-cooling loops, firewater and ballast systems, and in hydrofluoric acid alkylation units. For an accurate quote, send outside diameter, wall thickness or schedule, length, seamless or welded construction and the specification. We confirm availability, which is held for 2 days, and arrange cutting to length where needed.

Why Choose Monel Pipe?

Monel pipe and tube resist seawater erosion and biofouling better than many stainless grades, handle hydrofluoric acid and alkalis, and resist chloride stress-corrosion cracking. The alloy bends and welds well, which simplifies spool fabrication and tube-bundle work.

Applications:

Monel 400 pipe and tube are used in seawater, brine and hydrofluoric acid lines where other alloys corrode.

Marine: Seawater cooling, firewater and ballast piping on ships, offshore rigs and coastal plants.
Chemical Processing: Hydrofluoric acid alkylation piping, transfer lines and coils in refineries.
Heat Exchangers: Condenser and cooler tubes for seawater and brackish-water cooled exchangers.
Oil & Gas: Instrument tubing and process lines exposed to chloride-bearing fluids offshore.
Pharma Equipment: Alkali and salt-solution transfer lines needing nickel-copper corrosion resistance.

Monel 400 is supplied as seamless pipes, welded pipes, seamless and welded tubes, instrument tubing, cut lengths, fittings and flanges. Sizes on request – share OD, wall or schedule and length.

Monel Pipe: Specs, Sizes & Equivalents

Every Monel pipe and tube length keeps its original mill stencil. When we cut lengths, each piece is re-marked with the same heat number and recorded, so the PO, MTC, cutting record and dispatch documents stay linked for your QA review and incoming inspection.

Monel Pipe: ASTM / ASME Specifications by Form

Seamless Pipe & Tube: ASTM B165 / ASME SB165
Welded Pipe: ASTM B725 / ASME SB725. Welded Tube: ASTM B730. Condenser and exchanger tubes as per order.
Buttweld fittings: ASTM B366 (WPNC). Flanges & forgings: ASTM B564 / ASME SB564. Bolting in Monel on request.

Typical Monel Pipe Chemistry & Properties

Typical: Ni 63 min, Cu 28–34%, Mn ≤ 2%
Typical: good seawater-erosion resistance at higher flow velocities than copper-nickel; non-sparking in many uses.
Typical service from sub-zero to about 480 °C; welds well with matching nickel-copper filler.

FAQ: Do you supply seamless Monel 400 tube?

Yes, seamless to ASTM B165 / ASME SB165.
Q: Can I get matching Monel fittings and flanges? A: Yes, fittings to ASTM B366 and flanges to B564 are supplied together.
Q: Is Monel pipe better than copper-nickel for seawater? A: It generally tolerates higher flow velocities; we can discuss your case.

Monel Pipe Equivalent Grades & FAQ

Equivalents: W.Nr 2.4360 · NiCu30Fe · Alloy 400
Q: Can Monel tubes be cut to length? A: Yes; each cut length is re-marked with its heat number and covered by the MTC.
Enquire for Monel Pipe: call +91 99872 73700 or email sales@ganeshmetals.com with form, size and quantity.

Certified Monel Pipe Supply

Every Monel Pipe order from Ganesh Metals ships with full documentation:

ISO 9001/14001/45001
MTC to EN 10204 3.1 with heat-number traceability
ASTM B165 / B725 / B366 compliance

Monel Pipe Forms We Supply

Seamless Pipes
Welded Pipes
Condenser Tubes
Tubing
Instrument Tubes
Fittings & Flanges

Why Ganesh Metals?

Stockist, supplier and processor in Mumbai since 1992
PMI-verified Monel Pipe with original mill markings
Sizes on request – send Monel Pipe form, size & quantity for a quote

GANESH METALS

NICKEL ALLOYS
➤ Inconel 600
➤ Inconel 601
➤ Inconel 625
➤ Inconel 690
➤ Inconel 718
➤ Inconel X-750
➤ Hastelloy C22
➤ Hastelloy C276
➤ Hastelloy B2
➤ Hastelloy B3
➤ Hastelloy C4

OTHER GRADES
➤ Monel 400
➤ Monel K500
➤ Monel R405
➤ Incoloy 800
➤ Incoloy 800H / 800HT
➤ Incoloy 825
➤ Incoloy 925
➤ Alloy 20
➤ Nickel 200 / 201
➤ Nimonic 80

GET IN TOUCH
Mahendra Prajapati
📍 Shop Number 12, Sant Sena Maharaj Marg,
2nd Kumbharwada, Mumbai – 400004
📞 +91 99872 73700
📧 sales@ganeshmetals.com
📧 ganeshmetal2372@gmail.com