Gb T 33084 2016 Translated English Of Chinese Standard Gbt33084 2016

This Standard specifies the ordering requirements, manufacturing process, technical requirements, inspection rules and test methods, acceptance and quality certificates, marking and packaging of alloy structural steel forgings. This Standard applies to the ordering, manufacture and inspection of heavy alloy structural steel forgings for general purposes.

This Standard specifies the category, code, order content, dimension, shape, mass, technical requirements, test methods, inspection rules, packaging, marking and quality certificates of seamless steel tubes for low-temperature-service piping.

This Standard specifies the ordering requirements, manufacturing process, technical requirements, inspection rules and test methods, acceptance and quality certificate, marking and packaging, etc. of carbon structural steel forgings for general use in mechanical products. This Standard applies to the ordering, manufacture, and inspection of heavy carbon structural steel forgings for general use.

This Standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage, quality certificate and order form (or contract) contents of aluminum alloy extruded tubes for high-frequency electric transformer. This Standard applies to aluminum alloy round tubes (hereinafter referred to as tubes) which are produced by divergent die extrusion in the fields of transmission, transformation and distribution.

This Part of GB/T 3074 specifies determination principles, instruments and equipment, specimen preparation, test steps and results calculation for the coefficient of thermal expansion of graphite electrodes. This Part is applicable to the coefficient of other solid carbon materials of which the ordinary power, high power, ultra-high-power graphite electrode and total expansion at 600-degree does not exceed 1mm, of which the temperature range is room temperature ~ 600-degree. If it needs to test the coefficient of thermal expansion in other temperature ranges, it may refer to this method.

This Standard specifies the requirements, order information, materials and manufacturing, chemical composition, state, grain size, physical properties, mechanical properties, heat treatment, dimensions and allowable deviation, process, final processing, appearance and test method of copper-beryllium alloy forgings and extrusions. This Standard applies to copper-beryllium alloy forgings and extrusions whose alloy grades are C17000 (Be content of 1.7%) and C17200 (Be content of 1.9%). The alloys, which are not indicated with the grade, in this Standard, are C17200 copper-beryllium alloys.

This Standard specifies the form and dimensions of ends of parts with external metric screw thread (e.g. bolt, screw and stud ends) recommended for use. This Standard applies to standardized or non-standardized threaded parts.

This Standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, quality certificate and order (or contract) content of aluminum alloy ingots for casting. This Standard is applicable to aluminum alloy ingots for aluminum alloy castings.