China Erw Black Steel Pipe - Low Carbon Hollow Sections Pipe – Rainbow Manufacture and Factory

Erw Black Steel Pipe - Low Carbon Hollow Sections Pipe – Rainbow

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Erw Black Steel Pipe - Low Carbon Hollow Sections Pipe – Rainbow Detail:

Seamless square tube 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 will 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.

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

square pipe ready to ship_副本

Payment Term: TT, LC , Western Union

Company Profile:

Tianjin Rainbow Steel Group was founded in 2000, Located in Tianjin City. With development of past 20 years, Rainbow Steel has became into an integrated iron and steel enterprise of galvanized steel pipe, galvanized steel angle bar, galvanized profiles, galvanized steel structures for Infrastructure Construction, Building Industry, Agriculture and New Energy area. We are also the biggest electrical transmission steel tower manufacturer in North of China. Rainbow Steel Group has several subsidiaries which including steel processing lines, steel cutting, welding and stamping workshop, galvanizing mill and huge storage house.Our team has manufacturing technologies, processing experiences, engineering capabilities and advanced equipment. Our people are intelligent and hardworking. Our main exporting products are galvanized steel pipes, jobs of steel structures or frame works, galvanized iron angle bar, flat bar, iron channels and beams, steel profiles and all other steel jobs which will need further processing.With the global trending situation development, Rainbow steel is committed to develop innovative technologies and excellent service to meet the growing solar energy needs. Our team has over 10 years’ experience and successful cases at solar mounting (solar bracket) business. Our products have obtained the certificate of TUV, CE,ISO 9001-2008 and so on. Laser cutting,welding and stamping workshops are available for normal and customized goods.

Product detail pictures:

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We take "customer-friendly, quality-oriented, integrative, innovative" as objectives. "Truth and honesty" is our management ideal for Erw Black Steel Pipe - Low Carbon Hollow Sections Pipe – Rainbow , The product will supply to all over the world, such as: Uganda, Rio de Janeiro, California, We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information if you have any questions. We are glad to work for every client.

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The factory has advanced equipment, experienced staffs and good management level, so product quality had assurance, this cooperation is very relaxed and happy!