Wire diameter and tensile strength of piano Piano wire types and chemical composition for spring｜SPRING MANUFACTURER

Wire diameter and tensile strength of piano

　A list of piano wire diameters and tensile strengths. There are three types of piano wire: SWP-A, SWP-B, and SWP-V.

>Hardness and tensile strength of spring materials

> JIS standards for spring materials

＞Piano wire and hard steel wire

＞Types and chemical compositions of hard steel wire rods

＞Piano wire materials and their chemical composition

＞Comparison of chemical composition of piano wire and hard steel wire

＞Wire diameter and tensile strength of hard steel wire

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Wire diameter and tensile strength of piano wire

Blank wire diameters in this table and wire diameters not in the table are basically custom-made materials, and the cost may increase. Some manufacturers produce wire diameters other than those listed in the table, but confirmation is required.

The diameter and tensile strength of piano wire are shown in the table below.

^The unit is N/mm2

wire diameter mm	SWP-A	SWP-B	SWP-V
0.08	2890-3190	3190-3480	―
0.09	2840-3140	3140-3430	―
0.10	2790-3090	3090-3380	―
0.12	2750-3040	3040-3330	―
0.14	2700-2990	2990-3290	―
0.16	2650-2940	2940-3240	―
0.18	2600-2890	2890-3190	―
0.20	2600-2840	2840-3090	―
0.23	2550-2790	2790-3040	―
0.26	2500-2750	2750-2990	―
0.29	2450-2700	2700-2940	―
0.32	2400-2650	2650-2890	―
0.35	2400-2650	2650-2890	―
0.40	2350-2600	2600-2840	―
0.45	2300-2550	2550-2790	―
0.50	2300-2550	2550-2790	―
0.55	2260-2500	2500-2750	―
0.60	2210-2450	2450-2700	―
0.65	2210-2450	2450-2700	―
0.70	2160-2400	2400-2650	―
0.80	2110-2350	2350 to 2600	―
0.90	2110-2300	2300-2500	―
1.00	2060-2260	2260-2450	―
1.20	2010-2210	2210-2400	―
1.40	1960-2160	2160-2350	―
1.60	1910-2110	2110-2300	―
1.80	1860-2060	2060-2260	―
2.00	1810-2010	2010-2210	1770-1910
2.30	1770-1960	1960-2160	1720-1860
2.60	1770-1960	1960-2160	1720-1860
2.90	1720-1910	1910-2110	1720-1860
3.20	1670-1860	1860-2060	1670-1810
3.50	1670-1810	1810-1960	1670-1810
4.00	1670-1810	1810-1960	1670-1810
4.50	1620-1770	1770-1910	1620-1770
5.00	1620-1770	1770-1910	1620-1770
5.50	1570-1710	1710-1860	1570-1720
6.00	1520-1670	1670-1810	1520-1670
6.50	1520-1670	1670-1810	―
7.00	1470-1620	1620-1770	―
8.00	1470-1620	1620-1770	―
9.00	1420-1570	―	―
10.0	1420-1570	―	―