Industrial News
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Coiling temperatures
Coiling temperature impact properties on the strip After finish rolling the strip, cooling water within the layer to change the coiling temperature range α is significantly suppressed. Under most eutectoid ferrite nucleation and growth in the coiling temperature, following the completion of extre...Read more -
Carbon steel and alloy steel comparison and selection principles
On many occasions people more choice of steel instead of carbon steel mainly has the following the aspects. (1) Poor hardenability Carbon steel use water quenching, its critical quenching diameter into 15 ~ 20mm, 20mm diameter greater than for parts, even if the water can not quench hardenability...Read more -
Advantages of vanadium in steel
In order to improve certain properties of the steel and thus obtain some special properties in the smelting process intentionally added elements called alloying elements. Common alloying elements are chromium, nickel, molybdenum, tungsten, vanadium, titanium, niobium, zirconium, cobalt, silicon, ...Read more -
Fusion welding of PE pipeline
In recent years, polyethylene pipe has become the best choice of the city gas pipeline network and the low pressure water supply pipe networkdue due to its unique and good weld can be easy to connect, cracking resistance, environmental protection, health, recycling use and other characteristics. ...Read more -
Cold-formed steel
Cold-formed steel refers to the use plates or strip bent in a cold state of the various cross-sectional shape of the finished steel. Cold-formed steel is an economical lightweight thin-walled steel cross-section, also called cold-formed steel profiles. Bending section steel is the main material o...Read more -
Defects and treatment of cold drawn steel pipe
Defects and treatment of cold drawn steel pipe is as following: 1, folding: pulling system, cold drawn steel pipe inside and outside surfaces rendered straight or spiral direction of folding, the emergence of local or long pass on the pipe. The cause: the surface of the pipe material folded or fl...Read more