■ Section 6 Copper and copper alloys
6.1 General
6.1.1 Copper and copper alloy pipes are acceptable for a wide range of services, including bilge pipework and where non heat-sensitive material is required.
6.1.2 The maximum permissible service temperature of copper and copper alloy pipes, valves and fittings is not to exceed 200°C for copper and aluminium brass, and 300°C for copper-nickel. Cast bronze valves and fittings complying with the requirements of Chapter 9 of the Rules for Materials may be accepted up to 260°C.
6.1.3 The minimum thickness, t, of straight copper and copper alloy pipes is to be determined by the following formula but is not to be less than that shown in Table 1.6.1: