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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.
ASTM A252 Grade 2 Welded steel pipe piles contains not more than 0.005% phosphorus, A252 Gr.2 steel pipe piles’s surface can be black paint, bare pipe, oil, hot dip galvanized, 3PE, to meet your needs, A252 Grade 2 steel pipe piles widely used in the transportation of liquid, gas, oil, suitable for construction..
ASTM A252 Grade 3 welded steel pipe piles is an industrial steel pipe, A252 Gr.3 welded steel pipe piles suitable for oil and gas, water and gas, pulp pipeline. Also used in chemical industry, building structure and piling. The surface can be painted black paint, bare pipe, oil, hot dip galvanized, 3PE, to meet your needs, the yield strength of 310MPa or more, tensile strength above 455MPa..
