Structural Steel Pipe Sizes
Size:20*20-500*500mm or as the requirement，
large size steel tube above 500*500 can be produced.
Thickness:1.3-40mm or as the requirement
Length:5.8m/6m/12m or as the requirement
Description
Product Specification
Size | 20*20-500*500mm or as the requirement， large size steel tube above 500*500 can be produced. |
Thickness | 1.3-40mm or as the requirement |
Length | 5.8m/6m/12m or as the requirement |
Technique | ERW, SSAW, LSAW, galvanized, etc. |
Steel grades | ASTM A500, ASTM A501, EN10219, EN10210, JIS G3466, CSA G40.21 50W / 350W, AS 1136, AH36, DH36, ASTM A572 Gr50 , ASTM A513, etc. |
Application | Bridge Shipbuilding Steel Structures i.e. Airports, Facotry Workshop, Metro Station, etc. |
Package | in the bundle, or wrapped with waterproof cloth as per the customers' requirement |
Delivery Time | 5-10 days if stock is available; 20-25 days for new production |
Loading Port | Xingang, Tianjin, China |
MOQ | 10 tons |
1. All the pipes are high-frequency welded. 2. Both inner and outer welded stabs can be removed. 3. Pipe can be necked down and punched holes. 4. Supplying BV or SGS Inspection if the client needs it. | |
Classification of square tubes:
1. Shape of the section: square tube (square tube), rectangular square tube (rectangular tube).
2. Surface treatment methods include black square tubes, hot-dip galvanized square tubes, galvanized strip square tubes, and oil-coated square tubes.
3. By material: simple carbon steel square tube, low alloy square tube
4. Normative: national standard, Japanese standard, British system, American standard, European standard, non-standard;
5. Manufacturing process: welded square tube (longitudinally welded tube), seamless square tube (no weld, pulled tube);
6. Applications include square tubes for steel constructions, square tubes for steel beams and columns, square tubes for bridges, square tubes for autos, square tubes for the equipment industry, square tubes for machine tools, square tubes for decoration, and special purpose square tubes.
The national standard's key judgment standard:
1. Cross-section concave-convexity: no more than 0.6% of the length of the side, with a minimum value of 0.4mm (measured 100mm from the end);
2. Length deviation: ordinary grade 4m to 12m, allowable deviation 0-70mm; precision grade 4m to 6m, allowable deviation 0-5mm, 6m to 12m, allowable deviation 0-10mm; joint pipe weight should not exceed 5% of cargo volume, and no more than 10% if it exceeds 20kg/m.
3. Surface curvature: not more than 2mm per meter, with total curvature not exceeding 0.2% of total length;
4. Weight deviation: the difference between the actual and adjusted weights ranges from -6% to 10%.
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