Galvanized Steel Tube, Brand Name : Sheng Ding Yuan

Synopsis of process routing: din highly accurate cold drawn bright seamless steel tube is used as the tube to be galvanized, the outer wall is electroplated, caps are covered at two ends of tube to prevent from the dust.
Main features: different color of zinc such as white, yellow, army-green, black is evenly distributed in the surface of the tube, good brightness and antirust and antisepsis could improve after zinc coated.
applications:
automotive,military,railway industry,with high requirement of the tube’s brightness, cleanness,antirust,and antisepsis.
specifications:
size:od4mm-60mm,th0.5mm-7mm
standard:din2391,en103054,din1630
material: st35,st37.4,st37,st45,st52,st52.4, e215,e235,e355
delivery state:nbkgbk +white yellowarmy green galvanized
galvanized tube category and related standard
galvanized tube category related standard zinc coating thickness salt spray test
gr3+ galvanized tube with blue and white zinc astm b633-07
(type iii,sc 1234) 5-25um 24--72 hours without white rust;48--168 hours without red rust
gr3+ galvanized tube with color zinc astm b633-07
(type ii,sc 1234) 5-25um 48--96 hours without white rust;48--240 hours without red rust
gr6+ galvanized tube with color zinc astm b633-98
(type ii,sc 1234) 5-25um 24--96 hours without white rust;48--124 hours without red rust.