Heat Treatment

Heat Treatment

In terms of heat treatment at Broadway, we offer tempering, annealing, hardening and stress relieving alongside other methods of heat treatment dependant on the requirements.

Heat treatment is performed by heating the material to a pre-determined temperature based upon the desired material properties. Our tests are then performed to ensure the procedure has fulfilled the specified requirements.

Upon completion of heat treatment processes, test pieces from each batch are analysed to ensure accuracy and each batch is tested for hardness; finally, we provide the resulting hardness to the customer as proof of conformity.

At Broadway the Hardening process involves heating up to a maximum temperature of 1200 ºc in our Nabertherm furnaces and then rapidly cooling use an air quench process.

Tempering allows us to adapt the material properties to achieve a specified hardness value. Tempering is a low temperature heat treatment process and is carried out following hardening to reach the desired material hardness whilst reducing the material brittleness.

At Broadway we temper at a wide variety of temperatures, with the capabilities to temper between 150 and 900 °c depending on the material and the end goal. Temperatures and holding times are calculated for each material, part and desired material properties. To ensure consistency, we regularly consult with material suppliers to guarantee best practices are adhered to and that material specifications have remained constant.

At Broadway we manufacture from various nickel-based alloys, these can be enhanced by precipitation and aging which we undertake in our Nabertherm furnaces. Typical properties enhanced through this process are mechanical strength, corrosion and oxidation resistance.

Annealing and stress relieving is a heat treatment process which alters the microstructure of a material to change its mechanical properties. This also minimises the residual stresses in the structure of the material with the benefit of reducing the risk of dimensional changes in further manufacturing

Upon completion of heat treatment processes, test pieces from each batch are analysed to ensure accuracy and each batch is tested for hardness; finally, we provide the resulting hardness to the customer as proof of conformity.