Erw Steel Pipe - Torque tube for solar tracker – Rainbow
Erw Steel Pipe - Torque tube for solar tracker – Rainbow Detail:
Introduction :
Tianjin Rainbow Steel manufactures square tube which is a kind of long strip steel with hollow section and no seam around it. It is a square tube formed by extrusion of seamless tube through four sides of die. Square tube has hollow section and is widely used as a pipe for conveying fluid. It is mainly used in liquid transportation, hydraulic support, mechanical structure, medium and low pressure, high pressure boiler pipe, heat exchange pipe, gas, oil and other industries. It is stronger than welding and not crack.Hot rolled steel tubes are manufactured by passing sheet metal through rollers to achieve specific physical dimensions. The finished product has a rough surface finish with radiused corners, and either a welded or seamless construction. Manufacturing hot rolled square steel tubing involves rolling the steel at temperatures exceeding 1,000 Degree.
Index Table:
Square Tube | ||||
Specification mm | Wall Thickness mm | Specification mm | Wall Thickness mm | |
20*20 | 1.2-2.0 | 125*125 | 2.5-12.0 | |
25*25 | 1.2-3.0 | 130*130 | 2.5-12.0 | |
30*30 | 1.2-3.0 | 140*140 | 2.5-12.0 | |
32*32 | 1.2-3.0 | 150*150 | 2.5-14.0 | |
38*38 | 1.2-3.0 | 160*160 | 2.75-14.0 | |
40*40 | 1.2-4.0 | 175*175 | 2.75-14.0 | |
50*50 | 1.2-6.0 | 180*180 | 2.75-14.0 | |
60*60 | 1.5-6.0 | 200*200 | 2.75-16.0 | |
70*70 | 1.5-6.0 | 220*220 | 3.0-16.0 | |
75*75 | 1.5-6.0 | 250*250 | 3.0-16.0 | |
80*80 | 1.5-8.0 | 300*300 | 3.5-16.0 | |
90*90 | 1.5-8.0 | 350*350 | 4.0-16.0 | |
100*100 | 1.8-12.0 | 400*400 | 5.0-16.0 | |
110*110 | 2.0-12.0 | 450*450 | 6.0-16.0 | |
120*120 | 2.5-12.0 | 500*500 | 6.0-16.0 |
Rectagular Tube | ||||
Specification mm | Wall Thickness mm | Specification mm | Wall Thickness mm | |
15*20 | 1.2-2.0 | 100*150 | 2.5-12.0 | |
20*30 | 1.2-3.0 | 100*200 | 2.5-14.0 | |
20*40 | 1.2-3.0 | 100*250 | 2.5-14.0 | |
25*50 | 1.2-3.0 | 100*300 | 2.75-14.0 | |
30*40 | 1.2-3.0 | 150*200 | 2.75-14.0 | |
30*50 | 1.2-4.0 | 150*250 | 2.75-16.0 | |
30*60 | 1.2-4.0 | 150*300 | 2.75-16.0 | |
38*76 | 1.2-4.0 | 150*350 | 3.0-16.0 | |
40*50 | 1.2-4.0 | 200*250 | 3.0-16.0 | |
40*60 | 1.2-4.0 | 200*300 | 3.5-16.0 | |
40*80 | 1.2-4.0 | 200*400 | 3.5-16.0 | |
50*70 | 1.2-6.0 | 200*500 | 3.5-16.0 | |
50*75 | 1.2-6.0 | 250*300 | 3.5-16.0 | |
50*80 | 1.5-6.0 | 250*400 | 4.0-16.0 | |
50*100 | 1.5-6.0 | 250*500 | 4.0-16.0 | |
50*120 | 1.5-6.0 | 300*400 | 4.0-16.0 | |
60*80 | 1.5-6.0 | 300*500 | 5.0-16.0 | |
60*100 | 1.5-6.0 | 300*600 | 6.0-16.0 | |
60*120 | 1.5-6.0 | 350*400 | 5.0-16.0 | |
75*125 | 1.5-6.0 | 350*450 | 6.0-16.0 | |
75*150 | 1.5-6.0 | 350*500 | 6.0-16.0 | |
80*100 | 1.5-8.0 | 400*450 | 6.0-16.0 | |
80*120 | 1.8-8.0 | 400*600 | 6.0-16.0 | |
80*160 | 2.0-8.0 |
Main Material: | ASTM A53,ASTM A106 ASTM A210,ASTM A283,ST33, ST37-2,ST52, DIN1626,DIN1629,STPY41,G3452,G3457, S235,S355, Q195-Q235,Q345,20#, alloysteel etc | ||||
Technology: | Seamless; Or With seam | ||||
Surface treatment: | Paint oil; Varnish; Galvanized;Galvanize the raw strip steel; Or according to customer’s requirements. | ||||
Package: | Tied with steel trips, then wrapped by plastic material.Or according to customer’s requirements. | ||||
Usage: | Widely used in mechanical manufacture, construction field, metallurgy industry, farm vehicles, agriculture greenhouse, automotive industry, railway, highway guardrail, container frame, furniture, decoration, steel structure etc | ||||
Packaging & Delivery Packaging Details: 1. Small OD: In hexagonal bundle with steel strips 2. Large OD: In bulk 3. Wrapped in waterproof plastic woven bag 4. Filled in wooden cases 5. As required Delivery Detail:Shipped in 7-15 days after payment |
Payment Term: TT, LC , Western Union
Production Line:
Welcome to visit Tianjin Rainbow Steel ,China !
Product detail pictures:




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The company keeps to the operation concept "scientific management, high quality and efficiency primacy, customer supreme for Erw Steel Pipe - Torque tube for solar tracker – Rainbow , The product will supply to all over the world, such as: Tunisia, Ghana, Muscat, With high quality, reasonable price, on-time delivery and customized & personalized services to help customers achieve their goals successfully, our company has got praise in both domestic and foreign markets. Buyers are welcome to contact us.

The customer service staff's attitude is very sincere and the reply is timely and very detailed, this is very helpful for our deal,thank you.
