What is the value of permissible stress for bronze wire for the diameter of branding wire of 1 mm?

The value of permissible stress for a material, including bronze wire, depends on several factors such as the composition of the bronze alloy, the manufacturing process, the condition of the wire (hard drawn, annealed, etc.), and the specific application or standard being followed. For general engineering purposes, permissible stress values are typically provided by material standards or codes specific to the application or industry.

Without specifying the type of bronze alloy (such as phosphor bronze, silicon bronze, etc.), the condition of the wire, and the applicable standard or code, it’s challenging to provide an exact value for the permissible stress. However, for engineering design purposes, a common range for the permissible stress of bronze materials can be roughly between 100 to 250 MPa, depending on the factors mentioned above.

For a precise value, particularly for a specific application like branding wire with a diameter of 1 mm, you would need to consult the material specifications or standards applicable to your project or contact the material supplier. This would ensure the safety and integrity of the design according to the specific requirements of your application.