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Hunan Great Steel Pipe Co., Ltd
stainless steel pipe manufacturer,erw steel pipe,carbon steel pipe provider

Steel management performance inspection

Date: 2023-07-31
Steel management performance inspection ① Tensile test: measure stress and deformation, determine the strength (YS, TS) and plasticity index (A, Z) of the material Longitudinal and transverse specimen pipe section, arc, circular specimen (¢10,¢12.5) Small-diameter thin-walled steel pipes, large-diameter thick-walled steel pipes, and fixed gauge distance. Remarks: The elongation of the sample after breaking is related to the size of the sample GB/T 1760 ②Impact test: CVN, notch C type, V type, power J value J/cm2 Standard sample 10×10×55 (mm) Non-standard sample 5×10×55 (mm) ③Hardness test: Brinell hardness HB, Rockwell hardness HRC, Vickers hardness HV, etc. ④Hydraulic test: test pressure, pressure stabilization time, p=2Sδ/D Post time: Jul-31-2023

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