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Black Welded Steel Tube (Square or Rectangle Hollow Section) (ZL-ST)

China Black Welded Steel Tube (Square or Rectangle Hollow Section) (ZL-ST), Find details about China Black Steel Tube, Steel Tube from Black Welded Steel Tube (Square or Rectangle Hollow Section) (ZL-ST)

Model NO.
ZL-ST
Surface
Black, Bright, Zinc Coating
Square Section
13X13mm - 400X400mm
Rectangle Section
10X20mm - 300X400mm
Origin
Tianjin
Model NO.
ZL-ST
Surface
Black, Bright, Zinc Coating
Square Section
13X13mm - 400X400mm
Rectangle Section
10X20mm - 300X400mm
Origin
Tianjin
Black Welded Steel Tube
Steel Tube Square Hollow Section/ Rectangle Hollow Section

Specification:
1.Square dimensions: 15*15mm-500*500m.
2.Rectangular dimensions: 10*20mm-400*600mm.
3.Length: 1-14m or according to customer's requirement.
4.Special design is available according to requirement
5.Techniques: cold rolled, hot rolled, high-frequency welding and cold-formed molding technology.
6.Standards: GB/T 6728-2002, ASTM A500, EN 10219, JIS G3466,DIN
7.Usage:Mechanical and manufacture, steel structure, ship building, bridging, automobile chassis.
 The main Products

Name of products size (mm) Wall thickness (mm)Name of Products Size (mm) Wall thickness (mm)
Square
 tubes		20*201.3-2.5Rectangular
 tubes		20*301.3-2.75
25*251.3-2.7520*401.3-2.75
30*301.3-2.7525*401.3-2.75
40*401.3-3.7530*501.3-4.75
50*501.3-5.7530*601.3-4.75
60*601.3-5.7540*501.3-4.75
70*701.3-5.7540*801.3-4.75
80*801.3-5.7550*701.3-4.75
90*901.3-5.7550*801.3-4.75
100*1001.2-1260*901.3-4.75
120*1202.5-1250*1001.3-5.75
140*1402.75-1650*1501.3-5.75
150*1502.75-1660*1601.3-5.75
160*1603.0-16100*1502.5-16
180*1803.0-16100*2002.5-16
200*2003.0-16100*2502.5-16
250*2504.75-20150*3004.5-16
300*3004.75-20200*3005.5-20
400*4004.75-20200*4005.5-20
500*5004.75-20400*6005.5-20
RemarksSmall order and customized size available

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