This standard specifies the dimensions, classifications and grades, technical requirements, test methods, inspection rules, marking and quality certificates, packaging and storage of continuously cast gray cast iron hollow profiles and ductile iron hollow profiles (hereinafter referred to as continuous cast cast iron hollow profiles). and transportation. This standard is applicable to continuously cast cast iron hollow profiles with cross-sectional outer contour shapes of circular, rectangular, regular polygon and elliptical shapes produced by continuous drawing of water-cooled crystallizer.
JB/T 12282-2015 Referenced Document
GB/T 1348 Spheroidal graphite iron castings*， 2019-12-31 Update
GB/T 228.1 Metallic materials—Tensile testing—Part 1: Method of test at room temperature*， 2021-12-31 Update
GB/T 229 Metallic materials—Charpy pendulum impact test method*， 2020-09-29 Update