High Quality PPGI Coil for Sale

PPGI Coil

PPGI coil in the thickness direction to reduce the mechanical properties, welding, or by force after the occurrence of lamellar tearing easily. For this reason, some people are important for building steel plate welded components, in addition to requirements of its length along the width direction and has good mechanical properties, also asked the direction along the thickness of the layer also has good resistance to tearing. The plate is "steel plate thickness characteristics", which is the industry's commonly referred to as "Z to the steel."
"Performance of steel plate thickness" (GB/T5313-1985) is the performance of the direction of plate thickness at the specific request of the national standards. The standard properties of the steel plate along the thickness direction is divided into three levels, were used to grade mark "Z15", "Z25" and "Z35" said. Where "Z" for the thickness properties of the symbol, the subsequent two digits are the levels of steel section shrinkage percentage of the average of three samples. China's "Seismic Design of Buildings" (GB50011-2001) and "Technical Specification for Welding in Steel Building Structures" (JGJ81-2002) were the required thickness greater than 40mm thickness properties of steel should be used.