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Music wire diameters (ASTM A228): .015 to .250 in
What diameters does music wire come in, in mm? · Standard part · basis: Wire maker's stock list (Gibbs Wire, ASTM A228 music spring wire); mm are exact conversions at 25.4 mm/in
Also called: music wire sizes, music wire diameter mm, piano wire sizes, 1/16 music wire mm, 3/32 music wire, rc pushrod wire size, landing gear wire diameter
Exact dimensions. True size, with no printing tolerance added.
- sizes
- 14 in table
Notes
- Music wire (ASTM A228 spring wire) is sold by decimal-inch diameter. The table lists diameters from .015 to .250 in that appear in a wire maker's stock list, with the exact mm value; the fractional name is given where the decimal is that fraction.
- The maker stocks many more diameters, 0.0090 to 0.2830 in; the table is a selection, not the whole list.
- Diameter tolerances are set by ASTM A228 (not reproduced here).
- No file: a wire is a plain cylinder; use the diameter for pushrod bends, landing-gear sockets, hinge pins and Z-bend holes.
Music wire diameters (ASTM A228): .015 to .250 in size chart
| diameter | fraction | mm |
|---|---|---|
| .015 in | — | 0.381 |
| .020 in | — | 0.508 |
| .025 in | — | 0.635 |
| .032 in | — | 0.813 |
| .039 in | — | 0.991 |
| .047 in | 3/64 | 1.194 |
| .055 in | — | 1.397 |
| .0625 in | 1/16 | 1.587 |
| .078 in | 5/64 | 1.981 |
| .094 in | 3/32 | 2.388 |
| .125 in | 1/8 | 3.175 |
| .156 in | 5/32 | 3.962 |
| .187 in | 3/16 | 4.75 |
| .250 in | 1/4 | 6.35 |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Gibbs Wire & Steel | Phosphate coated music wire (ASTM A228): stocked diameters 0.0090 to 0.2830 in | web | Publisher's page; dimensions are facts |
Xem scan
File coming
No downloadable true-size file yet: the published figures do not fix the whole shape, and Xem never guesses a number. A measured scan is planned; request it and it moves up.
https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=music-wire-sizes
Questions
What is 1/16 in music wire in mm?
1.5875 mm (.0625 in).
What is 3/32 in music wire in mm?
2.3876 mm (.094 in listed; 3/32 in is .09375 in).

