Do not omit product form
The applicable standard can differ for plate, bar, tube, wire and forgings.
Procurement reference
Nickel Alloy Grade Cross-Reference
Use this table to reconcile common alloy names with UNS and Werkstoff designations before requesting a quotation. Always keep the governing material specification and product form on the inquiry.
A designation cross-reference does not authorize automatic material substitution.Core grades
Common designations used in inquiries
Trade names may be trademarked, while UNS and W.Nr. designations identify material families. Chemistry, mechanical properties and permitted forms are controlled by the cited product standard.
| Common designation | UNS | W.Nr. | Frequent inquiry forms |
|---|---|---|---|
| Nickel 200 | N02200 | 2.4066 | Plate, sheet, strip, bar, wire |
| Nickel 201 | N02201 | 2.4068 | Plate, sheet, strip, round bar |
| Alloy 600 | N06600 | 2.4816 | Plate, sheet, bar, tube, wire |
| Alloy 601 | N06601 | 2.4851 | Plate, sheet, strip, bar |
| Alloy 625 | N06625 | 2.4856 | Plate, sheet, bar, pipe, tube |
| Alloy 718 | N07718 | 2.4668 | Round bar, forged bar, plate, sheet |
| Alloy X-750 | N07750 | 2.4669 | Bar, wire, strip, springs |
| Alloy 825 | N08825 | 2.4858 | Plate, sheet, bar, pipe, tube |
| Alloy 400 | N04400 | 2.4360 | Plate, sheet, strip, bar, tube |
| Alloy K-500 | N05500 | 2.4375 | Round bar, forgings, wire |
| Alloy R-405 | N04405 | 2.4363 | Bar and machining stock |
Avoid specification errors
A grade number is only the first step
A quote-ready inquiry also identifies the product standard, dimensions, condition, test documentation and destination.
State the condition
Annealed, cold-worked, solution-treated and aged conditions are not equivalent.
Control substitutions
Require written approval before a supplier substitutes a related grade or standard.
Match the MTC
Purchase-order designations should match the mill certificate and marking requirements.
Quote-ready inquiry
Send the complete material designation.
Include the grade, specification, form, dimensions, condition, quantity and destination.