Synopsis of process routing: din highly accurate, cold drawn and bright seamless steel tube is used as the tube to be internally and externally galvanized. The inner and outer wall of tube areelectroplate, and/or passivated with military green after galvanizing. The caps are used to cover two ends of tube to prevent from the dust. .
Main features: the inner and outer walls of tube are galvanized and/or passivated which have remarkable properties of antirust and anticorrosion. The zinc white, color zinc (zinc yellow) and passivation with military green can be realized.Note: the length of tube is not exceeded 3m.
Main features of passivation: high anti corrosive performance, salt spray testing as per gb/t10125, testing times for 240 houses, with not rusting.
Main application: used in military industry, automotive and locomotive industries and in the case where the high antirust and anticorrosion for inner and outer tube walls are required
Main use:
Automobile, motorcycle shock absorber tube;
Bicycles, fitness device parts tube;
Air conditioning compressor motor housing;
Pneumatic hydraulic jack cylinder tube;
Hardware mechanical pipe
We can supply:
1)sizes (o.D. X w.T): from 13.7mm -- 720mm x 2m to 120m
2)standard: din 2391 en10305 3)steel grade: st52, st45, st37.4, st35 e235
4)surface: oiled or black painted to prevent rust
5)marking: as per customer's requirement
Inner packing:
Caps on two ends of every pipe
Outer packing:
Hexagonal shape bundles wrapped with strong steel trip or according to customers'requests
Square Tube Dimension: 20mm*20mm-1000*1000mm
Rectangular Tube Dimension: 20mm*30mm-600mm*1000mm
Thickness:2mm-35mm
Length:6m-12m , or as per customer?s requirements
Standards: DIN EN10210,EN10219,GB/T3094-2000,ASTM A500,JIS G 3466,GB/T6728-2002
Steel Grades:Q195, Q235, Q345(16Mn), STKR400/490, A500, ST37/44/52, S235, S275, S355, etc.
Surface Treatment: anti-rust oil, black painting, galvanizing
Packing: in bundles with steel strips or in bulk as per customer request
Applications: Construction framework, trestle, motorcar cassis,flight terminal framework, shipbuilding, automobile axle pipe, MRT and so on
The mostly used sizes ( for seamless and welded square steel pipe) are as below:
30 * 30 *( 2-4mm) ?? 50 * 50 *( 2-5mm) ?? 80 * 80 *( 3-10mm).
100 * 100 *( 3-16mm) ?? 135 * 135 *( 4-16mm) ?? 140 * 140 *( 4-18mm).
150 * 150 *( 4-20mm) ?? 180 * 180 *( 5-20mm) ?? 220 * 220 *( 6-20mm).
250 * 250 *( 5-25mm) ?? 300 * 150 *( 6-20mm) ?? 300 * 180 *( 8-20mm).
500 * 500 *( 8-25mm) ?? 400 * 400*( 8-22mm) ?? 450 * 450 *( 8-22mm).
300 * 200 *( 6-20mm) ?? 350 * 300 *( 8-22mm) ?? 350 * 350 *( 8-22mm).
400 * 250 *( 8-25mm) ?? 450 * 300 *( 8-25mm) ?? 450 * 480 *( 9-25mm).
500 * 300 *( 8-25mm) ?? 600*400*(8-30mm)
Skype( WhatsApp,Tel, Wechat):+8618330216175
Email:brsteelpipeup@163.com;lbrsteelpipe@aliyun.com
Linkedinï¼?Nathalie Lee
Feel free to contact us if any further questions,we will serve you as soon as possible.
Regular Specification: �¦9.52*0.7, �¦10*1, �¦12*2, etc.
Standard: ASTM-A249ï¼? GB151-1999ï¼?JIS G3463-88, JIS G3446, etc.
Application:
Widely applied in boiler and heat exchanger tubes, thermal power piping, condensersï¼?seawater desalinations and some landscape engineering projects such as spray fountain pipingï¼?etc.
Packing & Delivery:
Packing: PVC film wrap + PP woven bag + wooden pallet
Delivery: by sea, air, courier, etc.
Widely applied in cooling system, lubrication system and fuel system in engines and gearboxes, including cooling pipes for engine and turbocharger, fuel supply/ return pipes, oil dipstick tubes, etc.
Drawn Over Mandrel Tubes (DOM) Drawn Over Mandrel tubes according to tubing manufacturing standards like ASTM A513 type-5 & -6 or equivalent to meet customers requirements. Drawn over Mandrel (DOM) can be an ideal choice where a high degree of dimensional accuracy is required.
DOM steel tubing is manufactured from electrical resistance welded hollows and cold drawn through a die and over a mandrel, improving surface finish, mechanical properties and dimensional accuracy of both outside and inside diameters. DOM is a high-quality, cost-effective choice for demanding applications and machined parts because of its special characteristics: Combined with reliable weld integrity, Maximum concentricity, and Minimal wall variation.
Advantages
- Improved Dimensional Accuracy
- Improved Physical Properties
- Improved Surface Finish
- Straightening, Complete Dimension, and Non-Destructive Inspection are Integral to the Process
- Lower Machine Costs
- Mass Savings in High Strength-to-Weight Ratio Applications
Standards
- ASTM A513 Type 5
- Drawn Over Mandrel (DOM)
- ASTM A513 Type 6
- Drawn-Over Mandrel Special Smooth ID (SSID DOM)
