Short answer: Monel is a nickel-copper alloy led by grade 400 for seawater, hydrofluoric acid and sour-gas service and grade K-500 for age-hardened valves and shafts, so it beats stainless where flowing seawater, fluorides or non-oxidizing acids dominate, supplied as certified bar, rod, tube and plate with mill certificate and PMI for marine and process duty.
At a Glance
What Monel Is
Nickel-copper gives unique seawater and fluoride resistance, with the nickel basis in our Nickel Alloy Grades Guide and the copper basis in our Copper Supplier; the superalloy context is in our Superalloy Supplier.
Grades and Service
400 serves general marine and HF acid and K-500 serves hardened shafts, with marine context in our Marine Offshore Guide and chemical context in our Chemical Processing Guide; corrosion notes are in our Corrosion Resistance Guide.
Fabrication
Monel machines and welds with nickel filler, with machining in our Machining Guide and welding in our Welding Joining Guide; finish is in our Surface Treatment Guide.
Quality and Sourcing
Monel is checked by inspection and PMI, with methods in our Quality Inspection Guide; buyers confirm grade via our Mill Test Certificate Guide and pack per our Export Packing Guide.
Get a Quote
Tell HXSCO your requirements and we will respond with a competitive quote and lead time.
Frequently Asked Questions
A nickel-copper alloy strong in seawater and HF acid.
Monel K-500, age-hardened for strength.
Better in flowing seawater and fluorides.
Yes – with matching nickel-copper filler.
Confirm grade, PMI and certificate for export.
Source Monel with HXSCO
HXSCO supplies Monel 400 and K-500 in bar, rod, tube and plate with certificate and PMI. Send grade, size and quantity for a quote.