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What are the classifications of stainless steel tees
Due to the large equipment tonnage required for the hydraulic bulging process of stainless steel tee, it is mainly used for the manufacture of stainless steel tee with standard wall thickness less than dn400 in China. The applicable forming materials are low carbon steel, low alloy steel a...Read more -
What’s the background of black steel pipe?
History of Black Steel Pipe William Murdock made the breakthrough leading to the modern process of pipe welding.In 1815 he invented a coal burning lamp system and wanted to make it available to all of London. Using barrels from discarded muskets he formed a continuous pipe delivering the coal ga...Read more -
Global metals market facing worst situation since 2008
This quarter, base metals prices slumped the worst since the 2008 global financial crisis. At the end of March, the LME index price had fallen by 23%. Among them, tin had the worst performance, falling by 38%, aluminum prices fell by about one-third, and copper prices fell by about one-fifth. Thi...Read more -
What is the difference between stainless steel 316,316L,316H,316Ti
Hunan Great supplies 316 /316L seamless pipe. Need a quote? Send an email to : sales@hnssd.com SS 316,316L,316H,316Ti are both the 18/8 standard molybdenum based austenitic grades. Stainless steel grade 316 is an austenitic chromium-nickel stainless steel with molybdenum. second stainless steel i...Read more -
Non-destructive testing of LSAW steel pipe
1.Basic requirements for the appearance of LSAW welds Before the non-destructive testing of LSAW steel pipes, the inspection of the weld appearance shall meet the requirements. The general requirements for the appearance of LSAW welds and the surface quality of welded joints are as follows: the a...Read more -
The difference between cold forging and hot forging flange
The forging process of flange can be divided into hot forging and cold forging. The differences are as follows: In the hot forging of flange, the large flange with complex shape can be forged due to the small deformation energy and deformation resistance. In order to obtain the flange with...Read more