Product News
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Hot-dip galvanized (galvanizing) defects
Hot-dip galvanized defects: off, scratch, plaque passivation, zinc tablets, the thick side, the marks of the air knife, air knife scratches, exposed steel, inclusions, mechanical damage, the bad performance of steel substrate, wave edge, buckling,substandard size, embossing, the zinc layer thickn...Read more -
Features of Precision Tubes
Features of Precision Tubes Precision steel tubes is a kind of seamless steel pipe. Precision tubes features: 1. The cold-rolled precision steel tolerances and high precision, product precision control ± 5mm, outer wall finish, the surface oxide layer. 2. The cold-rolled precision steel comprehen...Read more -
JIS G3445 Carbon steel tubes for machine structural purposes
JIS G3445 Carbon steel tubes for machine structural purposes This Japanese Industrial Standard specifies the carbon steel tubes, hereinafter referred to as the “tubes”, used for machinery, automobiles, bicycles, furniture, appliances and other machine parts. The tubes shall be manufac...Read more -
Hot extruded steel pipe
Hot extruded steel pipe is used in the production of hot extrusion process to manufacture seamless steel tubes. Hot extrusion is widely used in the production of aluminum, copper and other nonferrous metals pipes and profiles. Hot extrusion of steel for the production of both special pipes and pr...Read more -
Factors of weld defects
Factors of weld defects (1) Material factors: The so-called material factor refers welding base metals and welding materials used, such as wires, rods, flux, and the shielding gas and the like. All of these materials are directly involved in the welding puddle or physico-chemical reaction of the ...Read more -
Construction and storage of anti-corrosion steel
Construction and storage of anti-corrosion steel: (1) Before painting iron surface treatment Sa2.5 stage, construction is strictly prohibited into the water, dust, oil and brushing in order to ensure quality. (2) Coating ratio: Group A points (base), Part B (hardener) = 9kg paint: 1kg hardener (o...Read more