NICKEL ALLOYS
Nickel Alloy Materials & Components for Critical Applications
MillsForge supplies nickel alloys for corrosive, high-temperature, and demanding industrial applications, with material sourcing, manufacturing coordination, machining, inspection, testing, documentation, and international delivery managed according to project requirements.
Inconel · Incoloy · Hastelloy · Monel
NICKEL ALLOY GRADES
Nickel Alloy Families We Supply
Nickel alloys are selected for applications where corrosion resistance, elevated-temperature performance, mechanical strength, or resistance to aggressive process environments is required.
Inconel
600 · 625 · 718 · 725
Nickel-chromium and nickel-chromium-molybdenum alloys selected for corrosion resistance, mechanical strength, and elevated-temperature applications.
Incoloy
800 · 800H · 800HT · 825
Nickel-iron-chromium alloys used in applications requiring resistance to oxidation, carburization, elevated temperatures, and corrosive environments.
Hastelloy
C22 · C276
Nickel-based corrosion-resistant alloys for chemical processing, aggressive media, and other severe corrosive service environments.
Monel
400 · K-500
Nickel-copper alloys combining corrosion resistance with useful mechanical properties for marine, chemical, and industrial applications.
COMMON GRADES
Nickel Alloy Grades for Different Service Conditions
Nickel alloys are selected for applications where corrosion resistance, elevated-temperature performance, mechanical strength, or resistance to aggressive process environments is required.
| Alloy | UNS | Typical Characteristics |
| Inconel 600 | N06600 | Oxidation resistance and performance at elevated temperatures |
| Inconel 625 | N06625 | Corrosion resistance combined with high strength |
| Inconel 718 | N07718 | High strength and elevated-temperature performance |
| Inconel 725 | N07725 | High strength with corrosion resistance |
| Incoloy 800 | N08800 | Oxidation and carburization resistance |
| Incoloy 800H/HT | N08810 / N08811 | Elevated-temperature service |
| Incoloy 825 | N08825 | Resistance to a broad range of corrosive environments |
| Hastelloy C22 | N06022 | Broad corrosion resistance in aggressive chemical environments |
| Hastelloy C276 | N10276 | Resistance to severe corrosive environments |
| Monel 400 | N04400 | Corrosion resistance, particularly in marine environments |
| Monel K-500 | N05500 | Higher strength with Monel-type corrosion resistance |
Additional nickel alloy grades can be sourced according to material specifications and project requirements.
PRODUCT FORMS
Nickel Alloys in the Forms Your Project Requires
Nickel alloys can be supplied as standard material forms, forged products, piping components, fasteners, or drawing-based machined components according to project requirements.
Rings · Discs · Blocks · Shafts · Custom Shapes
WN · Blind · SO · LJ · Threaded · Custom
BW · SW · Threaded · Custom Fittings
Round Bars · Hollow Bars · Flat Bars
Stud Bolts · Bolts · Nuts · Custom Fasteners
Drawing-Based · Machined · Made-to-Order
MATERIAL PERFORMANCE
Why Nickel Alloys?
Corrosion Resistance
Selected nickel alloys provide resistance to aggressive chemicals, chlorides, acids, seawater, and other corrosive environments depending on alloy grade and service conditions.
High-Temperature Performance
Certain nickel alloys retain useful mechanical properties and resist oxidation or other forms of high-temperature degradation.
Mechanical Strength
Precipitation-hardenable and solid-solution-strengthened nickel alloys provide different combinations of strength, ductility, and temperature capability.
Application-Specific Selection
Alloy selection should consider temperature, pressure, corrosion environment, mechanical loading, fabrication requirements, and applicable specifications.
STANDARDS & SPECIFICATIONS
Nickel Alloys to Applicable Material Standards
Bars & Rods
ASTM B166 — Nickel-Chromium-Iron Alloys
ASTM B446 — Nickel-Chromium-Molybdenum-Columbium Alloys
Other applicable specifications according to alloy grade.
Forgings & Flanges
ASTM B564 — Nickel Alloy Forgings in Applicable Grades
ASTM B637 — Precipitation-Hardening Nickel Alloy Bars, Forgings & Forging Stock
Fittings
ASTM B366 — Factory-Made Wrought Nickel and Nickel Alloy Fittings
Plate / Sheet / Strip
Applicable ASTM material specifications according to alloy grade and product form.
Material specifications vary by alloy grade, product form, supply condition, and application. MillsForge reviews the applicable specification for each project requirement.
APPLICATIONS
Nickel Alloys for Demanding Industrial Environments
- Oil & Gas: Components exposed to corrosive production fluids, high pressure, and demanding service conditions.
- Chemical & Petrochemical: Materials selected for aggressive chemical media and process environments.
- Power Generation: High-temperature and corrosion-resistant components for power and energy systems.
- Marine & Offshore: Nickel alloys selected for seawater and chloride-containing environments where appropriate.
- Valves & Pumps: Corrosion-resistant materials for pressure-containing and flow-control components.
- Industrial Equipment: Custom nickel alloy components for specialized industrial equipment and process systems.
QUALITY & COMPLIANCE
Inspection, Testing & Material Traceability
Material Traceability
Heat number and material identification can be maintained throughout the supply process according to order requirements.
PMI & NDT
Positive material identification and applicable non-destructive examination can be coordinated according to material and project requirements.
Mechanical & Corrosion Testing
Tensile, hardness, impact, corrosion, and other testing can be arranged where required by the applicable specification or customer requirements.
Documentation
Material certificates, inspection reports, EN 10204 3.1 / 3.2 documentation, and third-party inspection can be coordinated according to order requirements.
MATERIAL KNOWLEDGE
Compare Nickel Alloy Grades
Inconel 600 vs 625
Compare composition, corrosion resistance, strength, temperature capability, and typical applications.
Inconel 625 vs 718
Understand the differences between corrosion-resistant Alloy 625 and high-strength precipitation-hardened Alloy 718.
Hastelloy C22 vs C276
Compare two widely used nickel-based corrosion-resistant alloys for aggressive chemical environments.
NICKEL ALLOY REQUIREMENTS
Looking for a Specific Nickel Alloy?
Send us the alloy grade, product form, dimensions, quantity, applicable specification, inspection requirements, and delivery destination. We will review your requirement and coordinate a suitable supply solution.
What to include in your RFQ:
Grade · Product Form · Size · Quantity · Standard · Inspection