Spheroidizing annealing is a heat treatment process for spheroidizing carbides in steel to obtain granular pearlite. Process: Heating to 20 ~ 30 ℃ above Ac1, the holding time should not be too long, generally 2 ~ 4h is suitable, and the cooling method is usually furnace cooling, or a long time isothermal at about 20 ℃ below Ar1. It…
Read MoreElbows are used to change the direction of the pipe. The bending angles of commonly used elbows are 90 °, 45 ° and 180 °. The 180 ° elbow is also called a U-shaped elbow. There are also elbows with special angles, but the number is very few. 1. Cast iron elbow Malleable cast iron elbow is the most…
Read MoreCoiled tubing is a new type of petroleum pipe with a single length of several kilometers and can be repeatedly bent to achieve multiple plastic deformations. Coiled tubing and its operating equipment are called “universal operating machines.” In foreign countries such as the United States and Canada, coiled tubing has become an essential petroleum equipment for oilfield operations. At…
Read MoreYear: 2019 Country：Indonesia Quantity:200MT Product: Alloy Seamless Steel Pipe Project: Indonesia Bombana Sugar Plant Project Standard and Specification: ASTM A335 P11 1″-16″
Read MoreXINYUE STEEL GROUP set up several production bases in Tianjin & Hebei Province, manufacturing ERW Steel Pipe, SSAW Steel Pipe, LSAW Steel Pipe, Seamless Steel Pipe, Scaffolding system and couplers, RHS, SHS, etc.
