Square and Rectangular Tubes - Durable Steel
Manufacturing Process
(1)Roll Formed: Shaped by continuous rolling mills to form precise square and rectangular sections.
(2)Cut to Length: Processed to fixed dimensions for convenient installation and application.
(3)Surface Treated: Finished with coating or polishing to improve appearance and corrosion resistance.
Square and Rectangular Pipe Standards
IOS 10799, ASTM A500, ASTM A513, EN 10219, EN10210, JIS G3466, GB/T 6728, ANSI/AISC 360, DIN 2395, BS 1387, AS/NZS 1163, etc.
Welded Steel Pipe Steel Grade
According to different application environments, choose the appropriate steel grade.
| ASTM | EN | JIS | GB |
| ASTM A36 | S195 | SS330 | Q195 |
| ASTM A283 GrC | S235JR | SS400 | Q215 |
| ASTM A283 GrD | S235JR | SS400 | Q235 |
| ASTM A572 Gr50 | S355JR | SM490 | Q345 |
| ASTM A572 Gr60 | S355J2 | SM520 | Q390 |
| ASTM A572 Gr65 | S420ML | SM570 | Q420 |
| ASTM A572 Gr70 | S460ML | SM570 | Q460 |
| ASTM A513 Type5 | C22 | S20C | 20# |
| ASTM A513 Type6 | C45 | S45C | 45# |
Normal sizes
(1)Square Pipe
| ASTM | EN | JIS | GB |
| 3/4” * 3/4” | 20*20 | 20*20 | 20*20 |
| 1” * 1” | 25*25 | 25*25 | 25*25 |
| 1-1/4” * 1-1/4” | 30*30 | 30*30 | 30*30 |
| 1-1/2” * 1-1/2” | 40*40 | 40*40 | 40*40 |
| 2” * 2” | 50*50 | 50*50 | 50*50 |
| 2-1”2 * 2-1”2 | 60*60 | 60*60 | 60*60 |
| 3” * 3” | 80*80 | 80*80 | 80*80 |
| 4” * 4” | 100*100 | 100*100 | 100*100 |
| 5” * 5” | 120*120 | 120*120 | 120*120 |
| 6” *6” | 150*150 | 150*150 | 150*150 |
(2)Rectangular Pipe
| ASTM | EN | JIS | GB |
| 3/4” * 1/2” | 20*10 | 20*10 | 20*10 |
| 1-1/4” * 1/2” | 30*15 | 30*15 | 30*15 |
| 1-1/2” * 3/4” | 40*20 | 40*20 | 40*20 |
| 2”*1” | 50*25 | 50*25 | 50*25 |
| 2-1/2” * 1-1/4” | 60*30 | 60*30 | 60*30 |
| 3” * 1-1/2” | 80*40 | 80*40 | 80*40 |
| 4” * 2” | 100*50 | 100*50 | 100*50 |
| 5” * 2-1/2” | 120*60 | 120*60 | 120*60 |
| 6” * 3” | 150*75 | 150*75 | 150*75 |
| 8” * 4” | 200*100 | 200*100 | 200*100 |
Advantages
1. Stable structure with excellent load-bearing capacity for long service life.
2.Uniform shape and smooth surface for easy installation and application.
3.Quality tested throughout production to ensure stable performance.
4.Compatible with diverse processing methods (cutting, drilling, welding) for wide application scenarios.
Packaging and Shipping
Standard export packing. The modes of transportation include containerized sea freight, bulk sea freight, air freight, land transportation, and multi-modal transportation.
fAQ
Q: Are your square and rectangular tubes suitable for construction use?
A: Yes, they are widely used in construction, machinery, and engineering projects with stable performance.
Q: Can you provide customized sizes?
A: Yes, we support customized sizes to meet different project requirements.
Q: What materials are available?
A: We mainly supply steel options with reliable quality and durability.
Q: Do you inspect products before delivery?
A: Yes, strict quality testing is carried out to ensure product stability.
Q: Is your production process reliable?
A: Our mature manufacturing process guarantees consistent product quality.