Articles By zora li

Published 1 Year Ago
Heat treatment technology of oil casing
The heat treatment of oil casing needs to be strictly implemented to ensure that the produced oil casing has good product quality and performance, exhibits good use value and performance in use, adheres to high strength and toughness, and conducts heat tr

Published 1 Year Ago
The reason why heat exchanger tubes are mostly round instead of square
The advantages of round tubes are:① The circular pipe is easier to achieve sealing.②The flow resistance coefficient of the round tube is small, which is conducive to the heat exchange work.

Published 1 Year Ago
Seamless casing pipe vs ERW casing pipe
Seamless pipe refers to a steel pipe manufactured by four methods: hot rolling, cold rolling, hot drawing, and cold drawing. There is no weld seam on the pipe body itself.

Published 1 Year Ago
Hot rolled seamless steel tube
Hot rolling is relative to cold rolling, cold rolling is rolling below the recrystallization temperature, and hot rolling is rolling above the recrystallization temperature.

Published 1 Year Ago
Large diameter seamless steel pipe
The main production processes of large-diameter seamless steel pipes are hot-rolled large-diameter seamless steel pipes and heat-expanded-diameter seamless steel pipes.

Published 1 Year Ago
Seamless steel pipe pressure rating
Pipe pressure rating: usually determined by a common pipe fittings standard nominal pressure rating and wall thickness of the pipe pressure rating that can reflects the parameters characteristic called pipe pressure rating.

Published 1 Year Ago
Hot-rolled vs Cold-drawn
Hot-rolled is based on the slab (mainly billet) as raw material, heated by a roughing mill and finishing mill group made of steel.

Published 1 Year Ago
Test method for mechanical properties of seamless steel pipes
Test method for mechanical properties of seamless steel pipes

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