Encyclopedias
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06-05
2019
Steel pipe encyclopedia
I、 Tube Classification1、according to production methods classification（1）seamless pipe - hot-rolled pipes, cold-rolled pipes, cold-drawn tubes, extruded tubes, pipe ja…
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06-03
2019
Introduction of standard steel pipe materials
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05-22
2019
General term
一、Terms relevant to the steel product mechanical property1 、 Yield Point（σs）Stretching the steel product or sample, when the stress exceeds the limit of elasticity, …
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03-03
2019
Introduction to the hardness of steel pipes
ccording to Germany standard DIN50150,the following is the reference list for the steel’s usual range of Vickers hardness ,Brinell hardness and Rockwell hardness.Hardness…
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02-15
2019
Common terms used in steel pipe standards
一、Terms relevant to the steel product mechanical property1 、 Yield Point（σs）Stretching the steel product or sample, when the stress exceeds the limit of elasticity, …
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01-23
2019
Analysis and Control of Solid Particle Pollution in Hydraulic System of Construction Machinery
The work reliability and service life of engineering machinery is very closely related with the pollution state of the hydraulic system. According to the domestic and inte…
