Structural-Grade Square and Rectangular Hollow Sections Custom Sizes for Diverse Engineering Needs
Product Introduction
Square and rectangular steel tubes, collectively known as hollow structural sections (HSS), are cold-formed welded steel profiles with hollow cross-sections. These structural members are classified as:
Production Process
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. High strength-to-weight ratio.
2. Resistance to bending and torsional forces.
3. Easy to assemble and modify.
4. Suitable for both structural and decorative purposes.
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: What is the difference between square tubes and rectangular tubes?
A: The four sides of a square tube are equal in length, while the two pairs of sides of a rectangular tube are unequal in length. Rectangular tubes are more suitable for applications that require a specific load-bearing direction.
Q: Can custom sizes be accommodated?
A: Yes, we offer customized sizes and surface treatments tailored to your specific requirements.
Q: Are samples available?
A: Yes, samples can be provided, but shipping costs will be the responsibility of the customer.
Q: What measures are in place for quality control?
A: We ensure quality through Mill Test Certifications for every batch, third-party inspections, and certifications such as ISO, CE, SGS, and TUV. Our compliance is also verified by Alibaba.
Q: What sets your company apart?
A: Our products are crafted from premium materials and undergo rigorous quality checks, ensuring durability and reducing long-term costs for customers. Each product is tested multiple times to guarantee stability and reliability. Additionally, we offer customized solutions to meet unique customer needs.
Q: Which countries do you export to?
A: We have a global presence, exporting to many countries, including the US, UK, Canada, Ireland, Sweden, Saudi Arabia, Cameroon, Tanzania, Singapore, South Korea, Mexico and more.