News
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Antirust varnish
Antirust varnish is a rust-proof to protect the metal surfaces from the atmosphere, water and other chemical or electrochemical corrosion coatings. Mainly divided into physical and chemical rust two categories. The former rely on a suitable pigments and paints with the formation of a dense film t...Read more -
Anti rust process
Anti rust process Steel surface treatment is mainly anti rust, the following is anti rust process: First step is to clean, use cleaning solvent emulsion cleaning the steel surface, in order to achieve the removal of oil, grease, dust, lubricants and similar organic matter, but it can not remove t...Read more -
LSAW Steel pipe price list Dec.2019
LSAW Steel pipe price list Standard:GB/T3091，Material:Q235B,USD/ton WT OD 406 457 508 609.6 711.1 762 812.8 863.6 914.4 1016 1066.7 1117.6 1219.2 1320.8 1422.4 8 732.86 725.71 732.86 718.57 718.57 718.57 718.57 718.57 718.57 718.57 725.71 725.71 9.53 725.71 711.43 718.57 ...Read more -
Carbon seamless pipe for build the ship
Carbon seamless pipe for build the ship Application Product is designed and manufactured for the boiler, superheater and pressure system of ships. Production Standard，Steel No. CCS 360,410,440,490 DNV Carbon and Carbon Manganese Steel,Alloy Steel LR Carbon and Carbon Manganese Steel,Alloy Steel ...Read more -
Black annealed
Black annealed strictly speaking not an ordinary annealing, but the process and annealing almost. Steel black pipe skin is black oxide! Annealing: annealing the metal alloy is heated to an appropriate temperature and to maintain a certain time, and then slow cooling heat treatment process. Anneal...Read more -
Carbon steel internal defects
Carbon steel pipe internal defects is generated in the carbon steel smelting defect smelting and casting process, such as segregation, non-metallic inclusions, porosity, shrinkage and cracks. Segregation Segregation is the uneven distribution of chemical composition in the steel, in particular ha...Read more