Nickel Alloy Grade Finder
Find a suitable nickel alloy grade by searching its name or UNS number, selecting an alloy family, or filtering by product form and application. Explore common grades of Monel, Inconel, Incoloy, Hastelloy, Nimonic and commercially pure nickel to help narrow your material selection.
Whether you are sourcing nickel alloy round bars, plates, sheets, wires, coils, tubes or spring materials, this guide helps you identify potential material candidates and the technical details to confirm before requesting a quotation.
Find Your Nickel Alloy Grade
Use one filter or combine several filters to narrow the results.
This is a preliminary material-finding tool, not an engineering approval system. Results are filtered by general grade characteristics. Final suitability must be verified against the actual operating conditions, specification, product form and required material condition.
Nickel Alloy Grade Results
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Product forms shown are common forms to inquire about. Actual manufacturability, stock availability, minimum order quantities, dimensions, specifications and supply condition vary by grade and supplier. Please confirm the requirements before ordering.
How to Use the Nickel Alloy Grade Finder
Start with the information you already have. You do not need to know every material designation to begin a search. The best starting point depends on whether you are working from a drawing, a purchase specification, an existing material certificate or an application requirement.
1. Search by Grade or UNS Number
If your drawing or specification names an alloy, search its commercial grade name or UNS number. For example, Inconel 625 is commonly associated with UNS N06625, while Monel 400 is associated with UNS N04400. Verify the complete material designation and applicable standard before ordering.
2. Select the Required Product Form
Choose bar, plate, sheet, tube, pipe, wire, strip or coil according to your actual requirement. A suitable alloy designation alone does not guarantee that the required form, dimensions and condition are available.
3. Filter by Application
Use the application filter to explore candidate materials for corrosive chemicals, marine environments, high-temperature service, alkaline processing or spring applications. These filters are starting points, not automatic material approvals.
4. Confirm the Purchase Specification
Before submitting an RFQ, confirm the standard, dimensional tolerances, required mechanical properties, heat-treatment condition, inspection documents and quantity. Provide the operating environment when selecting a corrosion-resistant alloy.
Common Nickel Alloy Families and Their Uses
Nickel alloy families are not interchangeable. Their composition, strengthening mechanisms, resistance to different corrosive media and high-temperature capabilities vary. The following overview helps you understand where to begin before using the grade finder.
Commercially Pure Nickel
Examples: Nickel 200 and Nickel 201.
These grades are considered for certain caustic chemical handling and high-purity applications. Their electrical, thermal and fabrication properties may also matter. Nickel 201 has lower carbon content than Nickel 200, which is important for some elevated-temperature conditions.
Monel Alloys
Examples: Monel 400 and Monel K-500.
Nickel-copper alloys are used in selected marine, chemical-processing and corrosive environments. Monel K-500 is precipitation-hardenable and can provide higher strength than Monel 400 when processed to the specified condition. Their application suitability still depends on the medium and operating conditions.
Inconel Alloys
Examples: Inconel 600, 601, 625, 690, 718 and X-750.
This broad group includes materials considered for heat-resistant equipment, corrosion-resistant components, high-temperature strength and age-hardened applications. The correct grade depends on the balance of temperature, corrosive exposure, mechanical loading and required condition.
Incoloy Alloys
Examples: Incoloy 800, 800H and 825.
These nickel-iron-chromium alloys are used across certain high-temperature and corrosion-resistant applications. Incoloy 800H is associated with elevated-temperature structural service, while Incoloy 825 is used in selected corrosive environments.
Hastelloy Alloys
Examples: Hastelloy C-22, C-276 and B-2.
These corrosion-resistant alloys are considered for aggressive chemical-processing environments. Selection requires attention to the exact chemical species, concentration, temperature, impurities, crevices and oxidizing or reducing conditions.
Nimonic Alloys
Examples: Nimonic 75, 80A, 90 and 263.
Nimonic grades are associated with high-temperature applications. Their strengthening mechanisms and properties vary by grade. Check the specified condition and mechanical requirements, particularly when evaluating spring components or other parts that operate under sustained loads.
What Should You Check Before Selecting a Nickel Alloy?
An alloy name alone is not a complete purchasing specification. Use the following checklist to help avoid selecting the right general alloy family but the wrong product specification or condition.
Important material-selection principle
Two alloys may have similar general uses but perform differently in a particular chemical environment, temperature range or mechanical condition. A grade finder narrows the choices; final material approval should be based on the applicable specification and the actual service conditions.
Frequently Asked Questions About Nickel Alloy Grades
What is the difference between a nickel alloy grade and a UNS number?
A grade name is a commonly used material designation, while a UNS number is a standardized identification designation used to distinguish many metals and alloys. For example, Inconel 625 is commonly identified as UNS N06625. A UNS number alone does not specify every required product standard, heat-treatment condition, dimension or inspection requirement.
How do I choose between Inconel, Monel, Incoloy and Hastelloy?
Start with the operating environment rather than the alloy brand name alone. Monel grades are often considered for selected nickel-copper applications, Inconel grades span corrosion-resistant and high-temperature applications, Incoloy grades cover several nickel-iron-chromium applications, and Hastelloy corrosion-resistant grades are used in selected aggressive chemical environments. The correct selection depends on actual operating conditions and the exact grade.
Can I select an alloy based only on corrosion resistance?
No. Corrosion resistance must be considered together with temperature, mechanical loads, fabrication requirements, product availability, applicable standards and cost. Corrosion performance can change substantially with chemical concentration, impurities, flow conditions and the presence of crevices or deposits.
Can different nickel alloy grades be substituted for one another?
Not automatically. Similar applications do not establish material equivalence. A substitution must be checked against chemical composition, mechanical properties, corrosion performance, product form, specification, heat treatment and any design or regulatory requirements. Obtain approval from the responsible engineer or purchaser before changing a specified grade.
Which material documents should I request when buying nickel alloys?
The required documents depend on the purchase specification and contract. Common requests include a material test certificate or material test report, often specified to EN 10204 Type 3.1 where applicable, together with heat-number traceability and any agreed inspection results. PMI and ultrasonic testing should be specified when required; they are not automatically included with every order.
Does the grade finder confirm stock availability?
No. The finder identifies potential material candidates and common product forms to inquire about. It does not access live stock, confirm dimensions or guarantee lead times. Contact MWalloys with the grade, specification, dimensions, quantity and delivery requirements for confirmation.
Nickel Alloy Technical References
Before finalizing a material selection, check technical documentation from the relevant alloy producer and verify that the data applies to your exact grade and product form. The following resources provide manufacturer information for several major nickel alloy families.
- Special Metals — Nickel 200 and Nickel 201 Technical Bulletin
- Special Metals — MONEL Alloy Technical Bulletins
- Special Metals — INCONEL Alloy Technical Bulletins
- Special Metals — INCOLOY Alloy Technical Bulletins
- Haynes International — Corrosion-Resistant Alloy Portfolio
- MWalloys — Nickel Alloy Products
Manufacturer references are provided as starting points for technical verification. This grade finder is an informational tool, not a substitute for the governing material specification, the current manufacturer's datasheet, engineering review or certified inspection documentation.
Need a Nickel Alloy for Your Project?
Send MWalloys the material grade, required product form, dimensions, quantity and applicable specification. Our team can review your inquiry and confirm the relevant supply options, required documents and lead time.
You can also use the grade cards above to prepare an RFQ brief and copy the material details into your inquiry.
Request a Nickel Alloy Quote