Wuxi Caston has implemented a very strict quality assurance system in accordance with the API standard. Our products must undergo chemical element testing, mechanical property testing, as well as metallographic analysis after heat treatment. This ensures our product performs safely and reliably with a long service life, providing enhanced customer value.
This laboratory is equipped with: spectrum analyzer, tensile testing machine, impact testing machine, metallographic microscope, and hardness tester, etc. Our quality inspection is conducted strictly in accordance to with API standards to test the raw materials’ chemical components, mechanical properties, and metallographic structure.
Tensile testing machine
Testing the elongation of expanded ends of drill pipes
Tensile test report
From the picture we can know that the sample’s tensile strength is 1070MPa, higher than the standard value of 1000MPa; the yield strength is 1010MPa, exceeding 931MPa; and the pipes’ elongation is 19%, also reaches the standard point of 11%.
Impact testing machine
Impact test report
The report shows that the energy absorption of the sample drill pipe is 148.12, far greater than the standard value, 54.
The hardness tester demonstrates that the Brinell hardness of drill pipe is 32.5HB, larger than 30HB.
Wuxi Caston Drill Tools Co.,Ltd.
Add.: No.89 Zhenhubei Road, Wuxi City, Jiangsu province, P.R. China
Tel.: +86-510-85066207
Fax: +86-510-85066207
