DN and Diameter-Tables

DN (nominal diameter) term is used to inner diameter of pipe. DN-diameter conversion tables must be used to find required outer diameter values with pressure class.

SDR value is obtained by dividing outer diameter of pipe to pipe wall thickness. As pipe wall thickness increases, pressure resistance of pipe increases and SDR value decreases. Pressure resistance of pipes in terms of PN can be determined by using SDR value.

This table (?) is made for items as sheets and rods to give approx. Weight changes with dimensions. Results are calculated to give prior knowledge and may deviate  ±10% than real weights.

Technical data forms include some basic informations regarding products such as density, temperature range, yield strength, Shore D hardness etc. These datas are used for both material selection and for easier comparison between different products.