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ENGLISH BRASS is a ductile 70/30 brass of the correct microstructure.The smaller diameters are for brass-scaled instruments up to 30cm (11.75") for c" at a' = 415Hz, and up to 29cm (11.4") at a' = 440. Recommended practical tensions are:

0.19mm                     2.3kg                                       0.36                           7.5

0.21                           2.8                                           0.40                           9.1

0.23                           3.2                                           0.44                         10.8

0.25                           3.8                                           0.48                         12.4

0.27                           4.4                                           0.52                         14.0

0.30                           5.3                                           0.56                         16.0

0.33                           6.4

 

The larger diameters are for the basses of pianos, either as plain strings or as the cores of  covered strings. Recommended practical tensions are:

0.60mm                   19.0kg                                     0.90                         36.1

0.65                         21.6                                         0.95                         39.0

0.70                         24.3                                         1.00                         42.0

0.75                         27.2                                         1.07                         45.6

0.80                         30.2                                         1.15                         49.6

0.85                         33.1

The following list of recommended maximum speaking lengths for brass may help you to decide how high to take brass on iron-scaled instruments of the harpsichord family:

                                                at A415                                  at A440

c                                              119cm                                     112cm

B                                             126                                          119

A#                                          134                                          126

A                                             142                                          134

Brass is available in diameters of up to 1.60mm for pianos up to c. 1850. See below for diameters in addition to those which appear on the order form.

 AVERAGE DENSITY: 8536 kg/m³