MPS  /  MATERIALS  /  INDUSTRIAL & FOUNDRY  /  NICKEL & SUPERALLOYS
Ni
Ni-BASED MILL & WROUGHT SYSTEM

Nickel & Superalloys

Mill products for corrosion, heat, and pressure service.   Inconel 625, 718, Hastelloy C-276, Monel 400 in bar, plate, sheet, wire, tubing, and forgings. VIM-VAR melt route where the program requires; certified to AMS, ASTM, ASME, and NACE MR0175 on request.

Grades
625 · 718 · C-276 · Monel 400
Forms
Bar · Plate · Sheet · Wire · Forging
Standards
AMS · ASTM B · ASME · NACE MR0175
Melt route
VIM · VIM-VAR · AOD-ESR
Lead time
4 wk stock · 12–20 wk mill
Traceability
Heat → mill cert → PO

Nickel-based alloys are the working materials of corrosion, heat, and pressure service. They hold structural strength from cryogenic through 1050°C, resist chloride pitting and sour-service cracking, and stay ductile under repeated thermal cycling — conditions that reduce stainless steels and titanium to a supporting role. Every high-pressure turbine hot section, every chemical reactor handling wet chlorine, and every subsea wellhead in sour service is a nickel alloy.

Mill product demand is driven by four converging cycles: jet engine OEM ramp (CFM LEAP, Pratt GTF, Rolls Trent), chemical and petrochemical MRO turnarounds, subsea and downhole recompletions in the Gulf and North Sea, and gas-turbine hot-section refurbishment for power gen. Bar and plate segments are forecast at 6–14% CAGR through 2033, with Inconel bar the fastest-growing form.

We source from qualified U.S. and allied mills — VIM-VAR heats where program specs demand it, standard VIM/AOD for chemical and general service. Stock covers 625, 718, C-276, and Monel 400 in the most common bar and plate sizes; wire, sheet, tubing, and forgings ship on program qualification with mill certs traceable heat-to-PO.

Chemistry — Inconel 625
AMS 5666 (bar) · ASTM B443 (plate/sheet) · Ni bal, Cr 20–23, Mo 8–10, Nb 3.15–4.15
Chemistry — Inconel 718
AMS 5662 (annealed bar) · AMS 5663 (aged bar) · ASTM B637 (forging) · Ni bal, Cr 17–21, Nb 4.75–5.5
Chemistry — Hastelloy C-276
ASTM B574 (bar) · ASTM B575 (plate/sheet) · Ni bal, Cr 14.5–16.5, Mo 15–17, W 3–4.5
Chemistry — Monel 400
ASTM B164 (bar/wire) · ASTM B127 (plate) · Ni 63 min, Cu 28–34, Fe 2.5 max
Bar sizes
Round 0.25–12 in · Hex · Square · Cold-drawn & hot-rolled
Plate
0.187–4 in thick · up to 96 in wide · hot-rolled & solution-annealed
Sheet & strip
0.010–0.187 in thick · cold-rolled · No. 1 & 2D finish
Wire
Welding & spring tempers · 0.020–0.500 in · spooled or coiled
Forgings
Open-die & ring-rolled · program qualification required
Sour service
NACE MR0175 / ISO 15156 compliance on 625, 718, C-276, Monel 400
Melt route
VIM · VIM-VAR · AOD-ESR (per grade & program spec)
Traceability
Mill heat → mill cert → MPS lot → PO
Inconel 625
Solid-solution strengthened Ni-Cr-Mo-Nb. AMS 5666. Chloride and sour-service corrosion resistance. Oil & gas, chemical, marine.
Inconel 718
Age-hardened Ni-Fe-Cr. AMS 5662/5663. Aerospace fasteners, engine shafts, high-pressure downhole components to 650°C.
Hastelloy C-276
Ni-Mo-Cr-W. ASTM B574/575. The reference alloy for wet-chlorine and oxidizing-reducing chemical service.
Monel 400
Ni-Cu. ASTM B164/B127. Seawater, hydrofluoric acid, and reducing-environment corrosion resistance. Naval and marine.
Inconel 600 / 601
Ni-Cr and Ni-Cr-Al. High-temp oxidation and carburization resistance. Furnace, thermal processing.
Inconel 825
Ni-Fe-Cr-Mo-Cu. Sulfuric and phosphoric acid service. Oil & gas, pickling lines.
Hastelloy X
AMS 5754. Combustor and hot-section sheet and plate. High-temperature oxidation resistance.
Waspaloy
AMS 5586/5544. γ' strengthened. Turbine disc and hot-section fastener forgings.
Bar & rod
Hot-rolled, forged, cold-drawn. Round, hex, square. Shafts, valve stems, downhole tools, fasteners.
Plate
Hot-rolled & solution-annealed. Reactor walls, heat exchanger tubesheets, pressure vessel components.
Sheet & strip
Cold-rolled. Combustor liners, bellows, expansion joints, cladding.
Wire
Welding filler (ERNiCrMo-3, ERNiCu-7), springs, resistance elements.
Seamless tube & pipe
Heat exchanger tubing, downhole tubing, chemical process piping. ASTM B444/B622/B729.
Forgings
Open-die and ring-rolled. Turbine discs, flanges, wellhead bodies, valve bodies.
Oil & Gas
Sour-Service Wellheads
Inconel 625 and 718 forgings and bar for subsea trees, wellhead bodies, and downhole tools. NACE MR0175 compliant.
Chemical & Petrochem
Reactor Vessels & Tubesheets
Hastelloy C-276 plate and sheet for wet-chlorine, mixed-acid, and pulp-bleach service. Reference alloy for aggressive chemistry.
Marine & Naval
Seawater Systems
Monel 400 bar, plate, and wire for seawater valves, pump shafts, and propulsion components. Long-established naval alloy.
Power Gen
Gas Turbine Hot Section
Waspaloy and Inconel 718 forgings for turbine discs and hot-section fasteners. Hastelloy X sheet for combustor liners.
Aerospace
Engine Shafts & Fasteners
AMS 5662/5663 Inconel 718 bar for engine shafts, structural bolts, and high-temperature fasteners.
Defense
Munitions Tooling & Naval Propulsion
Nickel-alloy forgings and bar for hot-section munitions tooling, naval propulsion shafting, and hypersonic thermal protection.
Chemistry
Mill-certified per AMS/ASTM. ICP-OES on request for verification.
Mechanicals
Tensile, yield, elongation per grade & temper. Hardness reported per lot.
Corrosion
ASTM G28, G48 pitting/crevice testing available. NACE MR0175 certified on 625, 718, C-276, Monel 400.
Melt route
VIM-VAR certification per heat where program specifies. AOD-ESR for chemical-service grades.
NDT
UT per ASTM A388, dye-pen per ASTM E165 on request.
Documentation
Mill certs (EN 10204 3.1 or 3.2), heat-treat charts, PMI verification.
Every shipment includes the mill Certificate of Conformance (CofC) traceable heat-to-PO, plus any program-specific testing (NACE, tensile at temperature, hardness mapping) called out at qualification. Retained samples are held per lot for program-life duration.

Move it to a
program.

MPS-1 qualification, MPS-2 production, or MPS-3 strategic supply. 4-week standard lead time on qualified stock; 12–20 weeks on mill-direct sizes.