Key Features for Bridge Applications

High Strength & Stiffness: Supports heavy traffic loads and long spans while minimizing material usage.

Fatigue Resistance: Engineered to withstand cyclic loading from vehicles and wind, critical for bridge longevity.

Weldability: Low carbon equivalent (CEV ≤0.45%) allows reliable welding with low-hydrogen electrodes (e.g., E5515-G) after preheating to 100–150°C for thick sections.

Cold-Weather Performance: Achieves ≥27 J impact energy at -20°C, suitable for moderate cold regions.

Corrosion Resistance: While standard 15MnVNq lacks weathering elements, it can be coated or paired with corrosion inhibitors for marine or industrial environments. Weathering variants like 15MnVNqNH (with Cu/Cr/Ni additions) offer enhanced atmospheric corrosion resistance.

Manufacturing and Heat Treatment

Hot Rolling: Plates are rolled at 1050–1150°C to refine grain structure and improve strength.

Normalizing: Optional heat treatment (900–950°C) enhances uniformity and toughness for critical components.

Thermomechanical Control Processing (TMCP): Optimizes microstructure for high strength without compromising ductility.

Applications

 

 

 

 

 

 

 

15MnVNq is widely used in:

 

Highway/Railway Bridges:

Beam girders, piers, and trusses in projects like the Jiujiang Yangtze River Bridge (China), where its fatigue resistance and weldability were critical. The bridge's 216 m main span utilized 15MnVNq plates up to 56 mm thick, paired with 35VB high-strength bolts.

Long-Span Structures:

Cable-stayed and suspension bridges due to its high strength-to-weight ratio.

Modular Bridges:

Prefabricated components benefit from its dimensional stability and ease of assembly.

 

 

 

 

 

 

Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
We analyze and compare the previous products and the current technical situation of our 15MnVNq Bridge Structual Steel Plate, and develop new technical specifications and processes.
Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.
We strictly implement the warm and thoughtful after-sales service, adhere to the development of good professional ethics.
We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
We adhere to the customer-centric and brand-oriented business philosophy, and continue to provide customers with reliable and excellent products and services.
Our factory is committed to upholding the highest standards of safety and quality.
All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.
Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

Hot Tags: 15mnvnq bridge structual steel plate, China 15mnvnq bridge structual steel plate suppliers, factory, 2 4817, Inconel800, Inconel800H, N06690, N10276, Nickel based Alloy