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Q215A welded steel pipes is an industrial steel pipe which under GB/T 3091-2008 standard, Q215A welded steel pipes mainly used for low-pressure liquid transport, such as water and gas. Construction, greenhouse structure, the surface can be coated epoxy paint, coal tar epoxy, 3PE, extinction coating, asphalt coating, black paint or cis-type requirements, yield strength and tensile strength are good..
Q235A welded steel pipes has good toughness and plasticity which under GB/T 3091-2008 standard with good weldability and hot workability, Q235A welded steel pipes’s surface can be painted black paint, anti-corrosion oil, galvanized or customer requirements. Widely used in transportation, gas and other applications, mainly used in the life of the structural industry and coal mining and chemical industry construction and agriculture..
Q235B welded steel pipes is an industrial steel pipe which under GB/T 3091-2008 standard, Q235B welded steel pipes’s surface can be painted black paint, varnish, antiseptic oil, galvanized or according to customer requirements, mainly used in low-pressure liquid, water, gas, oil, pipeline, construction, fence, Or wooden pallet packing, piping paint, end plastic cover or according to customer requirements..
Q345A welded steel pipes belongs low-alloy high-strength steel pipe which under GB/T 3091-2008 standard, Q345A welded steel pipes mainly for boilers, heat exchangers, petroleum, aerospace, chemicals, electricity, military. The surface can be polished finish, black, paint, oil, galvanized, PE coating, PVC coating, anti-rust oil, anti-rust paint, color pre-coating for protection..
Q345A welded steel pipes is a low-carbon alloy steel (c <0.2%) which under GB/T 3091-2008 standard, Q345A welded steel pipes have comprehensive performance, low temperature performance, cold stamping performance, welding performance and cutting performance. Widely used in bridges, vehicles, ships, construction, pressure vessels, the surface can be painted black paint, varnish, rust oil, hot dip galvanized, cold galvanized, 3PE and so on..
ASTM A53 Grade A Welded and Seamless steel pipe uses cold rolling, hot / cold drawing, hot drawing process, ASTM A53 Grade A steel pipes have the surface of the black paint, anti-corrosion oil, galvanized or customer requirements. .
ASTM A53 Grade B welded steel pipe is an industrial steel pipe,ASTM A53 Gr.B steel pipe used for liquid conveying, structural pipe, fence and door pipe, construction, for low pressure liquid conveying, such as water, gas and oil, acceptable chemical composition analysis, mechanical properties, technical performance, Hydraulic test, X-ray test, HY, ET and other tests, usually painted black as required rust protection..
ASTM A252 Grade 1 welded steel pipe piles in steel should contain not more than 0.005% of the phosphorus, A252 Gr.1 welded steel pipe piles have the surface can be coated with adhesive epoxy coating, coal tar epoxy resin, 3PE, extinction coating, asphalt coating, black oil coating according to customer requirements.
