BRISK STEEL FOCUS ON PRODUCE AND SUPPLY HOLLOW SECTION AND STEEL PIPE
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About UsBrisk Steel Group is a leading manufacturer and distributor of steel structures, steel tubes and pipes in diverse fields such as infrastructure and construction industry, machinery industry, new energy projects ect.
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ProductsIt is a large steel structural company from design, manufacturing to erection with the certificate of First Grade Qualification of Professional Contracting of Steel Structure.we are dedicated to manufacturing square, rectangular, circular hollow sections,weld steel pipe,GI pipe and LSAW Pipe for bridge and steel structural products like warehouse, automated parking system, electricity tower and ect. to satisfy customers' needs for different products.
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BLOGCustomers choose and trust us not only because of our stable quality but also pre-sales service and post-sales service along with the products. Each of our employee dealing with clients is a product expert, who will answer clients' questions professionally with great patience and provide clients with excellent customized solutions based on each client's requirement.
Add：Daqiuzhuang Industrial Area,Jinghai County,Tianjin,China
Tel：08618322290777
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RECTANGULAR TUBE FOR CONSTRUCTION
- Commodity name： RECTANGULAR TUBE FOR CONSTRUCTION
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- 产品描述
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Specification of square and rectangular hollow sections
OD(MM) THICKNESS(MM) OD(MM) THICKNESS(MM) OD(MM) THICKNESS(MM) OD(MM) THICKNESS(MM) 20*20 1.3 60*120
80*100
90*90
1.50 180*180 3 300*800
400*700
550*550
500*600
1.4 1.70 3.5-3.75 9.5-9.75 1.5 1.80 4.5-4.75 11.5-11.75 1.7 2.00 5.5-7.75 12-13.75 1.8 2.20 9.5-9.75 15-50 2.0 2.5-4.0 11.5-11.75 20*30
25*25
1.3 4.25-4.75 12.0-25.0 1.4 5.0-6.3 100*300
150*250
200*200
2.75 300*900
400*800
600*600
500*700
1.5 7.5-8 3.0-4.0 9.5-9.75 1.7 50*150
60*140
80*120
100*100
1.50 4.5-9.75 11.5-11.75 1.8 1.70 11.5-11.75 12-13.75 2.0 2.00 12.5-12.75 15-50 2.2 2.20 13.5-13.75 2.5-3.0 2.5-2.75 15.5-30 20*40
25*40
30*30
30*40
1.3 3.0-4.75 150*300
200*250
3.75 300*1000
400*900
500*800
600*700
650*650
1.4 5.5-6.3 4.5-4.75 1.5 7.5-7.75 5.5-6.3 9.5-9.75 1.7 9.5-9.75 7.5-7.75 11.5-11.75 1.8 11.5-16 9.5-9.75 12-13.75 2.0 60*160
80*140
100*120
2.50 11.5-11.75 15-50 2.2 2.75 13.5-30 2.5-3.0 3.0-4.75 200*300
250*250
3.75 400*1000
500*900
600*800
700*700
3.25-4.0 5.5-6.3 4.5-4.75 25*50
30*50
30*60
40*40
40*50
40*60
50*50
1.3 7.5-7.75 5.5-6.3 9.5-9.75 1.4 9.5-16 7.5-7.75 11.5-11.75 1.5 75*150 2.50 9.5-9.75 12-13.75 1.7 2.75 11.5-11.75 15-50 1.8 3.0-3.75 12-13.75 2.0 4.5-4.75 15.5-30 2.2 5.5-6.3 200*400
250*350
300*300
4.5-6.3 500*1000
600*900
700*800
750*750
2.5-3.0 7.5-7.75 7.5-7.75 9.5-9.75 3.25-4.0 9.5-16 9.5-9.75 11.5-11.75 4.25-4.75 80*160
120*120
2.50 11.5-11.75 12-13.75 5.0-5.75 2.75 12-13.75 15-50 5.75-6.3 3.0-4.75 15.5-30 40*80
50*70
50*80
60*60
1.3 5.5-6.3 200*500
250*450
300*400
350*350
5.5-6.3 500*1100
600*900
700*800
750*750
1.5 7.5-7.75 7.5-7.75 9.5-9.75 1.7 9.5-9.75 9.5-9.75 11.5-11.75 1.8 11.5-20 11.5-11.75 12-13.75 2.0 100*150 2.50 12-13.75 15-50 2.2 2.75 15.5-30 2.5-3.0 3.0-4.75 280*280 5.5-6.3 600*1100
700*1000
800*900
850*850
3.25-4.0 5.5-6.3 7.5-7.75 9.5-9.75 4.25-4.75 7.5-7.75 9.5-9.75 11.5-11.75 5.0-6.0 9.5-9.75 11.5-11.75 12-13.75 40*100
60*80
70*70
1.3 11.5-20 12-13.75 15-50 1.5 100*200
120*180
150*150
2.50 15.5-30 1.7 2.75 350*400
300*450
7.5-7.75 700*1100
800*1000
900*900
1.8 3.0-7.75 9.5-9.75 11.5-11.75 2.0 9.5-9.75 11.5-11.75 12-13.75 2.2 11.5-20 12-13.75 15-50 2.5-3.0 100*250
150*200
3.00 15.5-30 3.25-4.0 3.25-3.75 200*600
300*500
400*400
7.5-7.75 800*1100
900*1000
950*950
4.25-4.75 4.25-4.75 9.5-9.75 11.5-11.75 5.0-6.3 9.5-9.75 11.5-11.75 12-13.75 50*100
60*90
60*100
75*75
80*80
1.3 11.5-11.75 12-13.75 15-50 1.5 12.25 15.5-40 1.7 140*140 3.0-3.75 300*600
400*500
400*400
7.5-7.75 900*1100
1000*1000
800*1200
1.8 4.5-6.3 9.5-9.75 2.0 7.5-7.75 11.5-11.75 20-60 2.2 9.5-9.75 12-13.75 2.5-3.0 11.5-25 15.5-40 3.25-4.0 160*160 3.00 400*600
500*500
9.5-9.75 1100*1000
1100*1100
4.25-4.75 3.5-3.75 11.5-11.75 20-60 5.0-5.75 4.25-7.75 12-13.75 7.5-8 9.5-25 15.5-40 Chemical Element Composition Comparison
- Chemical composition determines the weldability, corrosion resistance and processing performance of black square tubes. The key controlled elements include Carbon (C), Manganese (Mn), Phosphorus (P) and Sulfur (S); low P and S content ensures low impurity and stable steel quality.
Standard & Grade
Carbon (C) ≤
Manganese (Mn)
Phosphorus (P) ≤
Sulfur (S) ≤
Characteristic
GB Q235B
0.22%
0.30% - 1.40%
0.045%
0.045%
Balanced composition, good plasticity
ASTM A500 Gr.B
0.26%
0.70% - 1.10%
0.040%
0.040%
Strict impurity control
ASTM A500 Gr.C
0.20%
0.80% - 1.35%
0.040%
0.040%
Higher manganese for better strength
EN 10219 S235JRH
0.17%
0.40% - 1.20%
0.035%
0.035%
Low carbon, excellent weldability
EN 10219 S355J0H
0.22% 1.60% 0.035% 0.035% High strength, 0℃ impact resistance
EN 10219 S355J2H 0.22% 1.60% 0.030% 0.030% Low-temperature toughness (-20℃)
Common Standard Steel Grades for Construction SHS & RHS
In global construction trade, three mainstream standards are universally adopted: Chinese GB standard, American ASTM standard and European EN standard. These grades cover low-strength conventional construction, medium-load steel structure and high-strength low-temperature resistant building projects. All grades below are the most frequently selected for construction engineering.
- Chinese Standard (GB/T 700 & GB/T 6728): Q235B (General construction), Q355B (High-strength building support)
- American Standard (ASTM A500): Grade B (Medium-load structure), Grade C (Heavy-load building framework)
- European Standard (EN 10219 Cold-formed Hollow Section): S235JR (Ordinary architectural decoration), S355J0H (0℃ low-temperature construction), S355J2H (-20℃ extreme cold region building)
Building Classification & Application Scenarios
Different steel grades correspond to different building types based on strength, toughness and environmental adaptability. The classification is clear for engineers and purchasers to select suitable SHS and RHS tubes for construction.
1. Civil & Light Commercial Buildings
Applicable grades: GB Q235B, EN S235JR. These low-carbon steel grades feature low cost, easy cutting, bending and welding. They are widely used in residential buildings, small shopping malls, temporary construction buildings, fence frames, stair handrails, interior decoration keels and light curtain wall supports.2. Medium-Span Steel Structure Buildings
Applicable grade: ASTM A500 Grade B. With stable mechanical performance and moderate yield strength, this grade is preferred for American-standard industrial workshops, warehouse buildings, logistics storage frames, exhibition halls and outdoor advertising support structures.3. Heavy-Duty & High-Rise Buildings
Applicable grades: ASTM A500 Grade C, GB Q355B. High yield strength and compression resistance enable these tubes to bear heavy load. They are commonly used for high-rise building steel frames, large-span factory trusses, parking garage structures and bridge auxiliary supports.4. Low-Temperature & Harsh Environment Buildings
Applicable grades: EN S355J0H, S355J2H. With certified low-temperature impact resistance, these European-standard tubes are specially used for buildings in northern cold regions, outdoor stadium steel structures, offshore auxiliary buildings and weather-resistant engineering construction.Purchasing & Selection Guidance for Construction Projects
- Low-budget civil construction & decoration: Select GB Q235B or EN S235JR, cost-effective and easy field processing.
- American-standard industrial building: Adopt ASTM A500 Grade B for stable structural performance.
- Heavy-load high-rise & large-span buildings: Choose ASTM A500 Grade C or GB Q355B to meet high bearing requirements.
- European & cold-region construction: Use EN S355J0H and S355J2H to adapt to low-temperature harsh environment.
Brisk Steel Factory
Core Advantage
Brisk Steel Group is rooted in a culture of "technology as the backbone, quality as the soul, and customers as the heart." Through relentless innovation, global expansion, and a commitment to responsibility, we strive to become a trusted global partner and a technological benchmark in the steel manufacturing industry.
Craftsmanship with Precision
We adhere to a rigorous quality control system that spans the entire production process—from raw material procurement and manufacturing to product delivery—ensuring the highest standards of excellence.
Innovation-Driven Technological Leadership
We prioritize R&D and technological advancement, integrating cutting-edge production lines (e.g., JCOE large-diameter LSAW pipe production) and expert teams from countries like Germany and the Netherlands to maintain our position at the forefront of the industry.
Globalization and Open Collaboration
Actively engaging in the global supply chain, we have obtained international certifications such as CE marking, enabling our products and services to reach worldwide markets.
Professional Team and Talent Empowerment
We value the recruitment and development of technical talent, building an international and professional team that drives continuous growth.
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