ASTM A500 Grade B tube of Hebei K-steel Pipe Industry is a carbon steel structural pipe widely used in construction and mechanical applications. It is manufactured in both seamless and welded forms, offering excellent strength, durability, and versatility for structural frameworks.
This specification covers cold-formed welded and seamless carbon steel tubing in round, square, and rectangular shapes. Grade B provides a balanced combination of strength and weldability, making it suitable for a wide range of load-bearing and structural uses.
Key Features:
1) High strength-to-weight ratio for efficient structural design
2) Excellent weldability and formability
3) Uniform mechanical properties across seamless and welded options
4) Available in a broad range of outer diameters and wall thicknesses
5) Suitable for both indoor and outdoor structural applications
ASTM A500 Gr. B Chemical Composition & Mechanical Property:
Chemical Composition |
Chemical Composition, % | Grade C | Grade B |
C, max | 0.27 | 0.30 |
Mn, max | 1.40 | 1.40 |
P, max | 0.045 | 0.045 |
S, max | 0.045 | 0.045 |
Cu, min | 0.18 | 0.18 |
Tensile Requirements |
Grade | Yield Strength (min)
MPa (psi) | Tensile Strength (min)
MPa (psi) |
Grade C | 345 (50,000) | 425 (61,600) |
Grade B | 315 (46,000) | 400 (58,000) |
General information:
Standard: ASTM A500
Grade: B
Round: OD: 21.3-609.6mm; WT: 1.0-25mm; L: 6m / 12m
Square: 20x20mm - 500x500mm; WT: 1.0-25mm; L: 6m / 12m
Rectangular: 20×30 mm - 400×600 mm; WT: 1.0-25mm; L: 6m / 12m
Ends:
1) Plain or straight ends
2) Beveled ends
3) Threaded ends
Available Coating: Bared, black painted (mill varnish), oiled, hot-dip galvanized, anti-corrosion coating.
Package: bundled with steel strips for small or medium sizes, loose packing for large diameter pipes, each bundle will not exceed 3tons.
Shipment: Land transportation by truck or train, sea transportation by container shipment or bulk vessel.
Our advantage:
Flexible Project Customization
We provide tailored manufacturing solutions to meet diverse project requirements, including customized outer diameter, wall thickness, and length specifications. In addition, we offer precision end preparation and a full range of anti-corrosion coating options to ensure optimal performance in various operating environments. This flexibility enables us to deliver line pipe solutions that align seamlessly with your technical and application needs.
Fast & Reliable Lead Time
With strong mill partnerships and readily available inventory resources, we are able to shorten production cycles and respond quickly to urgent project demands. Our integrated supply network ensures stable material availability, efficient scheduling, and on-time delivery — helping clients keep their projects on track without delay.
Advanced Technical & Quality Assurance
Equipped with our own metallurgical laboratories and supported by trusted third-party inspection agencies, we ensure every line pipe meets international standards and project specifications. Comprehensive testing and verification guarantee consistent mechanical properties, chemical composition, and coating integrity, providing clients with reliable, high-quality pipeline solutions.
Rapid Delivery & Complete Logistics
Leveraging fast supply capabilities and a well-established logistics network, we ensure timely delivery of line pipes to any project location. Our streamlined transportation and warehousing system minimize lead time, helping clients maintain smooth operations and meet critical project schedules.
