Q355B Low Alloy Structural Steel Plate For Fabrication
Product Summary
MESCO's Q355B low alloy structural steel plate delivers excellent weldability and high strength, making it a top choice for steel fabricators, industrial building construction, and heavy equipment manufacturing. With a yield strength of 355 MPa, this plate ensures robust performance in demanding structural applications.
Available in black or galvanized surfaces, and compliant with major international standards.
Key Selling Points
High Yield Strength (355 MPa): Allows lighter sections without compromising safety, optimizing material usage and reducing total weight.
Superior Weldability: Low-alloy composition minimizes preheat requirements and cracking risk, speeding up fabrication.
Consistent Mechanical Properties: Stable performance across thickness range ensures reliable structural behavior.
Meets Global Standards: Manufactured to ASTM, EN, JIS, GB standards, simplifying design approvals.
Proven Track Record: Used in a large industrial workshop project in Chile, demonstrating real-world reliability.
Technical Specifications
Property
Value
Grade
Q355B
Thickness
2mm – 100mm
Width
1000mm – 3500mm
Length
6m – 12m
Surface
Black / Galvanized
Standard
ASTM / EN / JIS / GB
Models and Options
Offered in Q235 and Q355 grades. Surface can be black or galvanized. Custom sizes and edge preparation available.
Materials and Structure
Low-alloy structural steel with microalloying elements for enhanced strength and toughness, suitable for welded structures.
Applications
Steel fabrication and structural workshops
Industrial building frames
Heavy machinery components
Storage tanks and pressure vessels
Customization
Custom cutting, drilling, and surface treatments available. Our engineers can assist with material selection.
Case Study
Chile Industrial Workshop: A steel structure EPC contractor required 5,000 MT of structural steel for a large industrial workshop. MESCO supplied Q355B plates, which demonstrated excellent weldability and stable mechanical properties, enabling strong load-bearing capability. Fast delivery and technical support helped complete the project efficiently and reduce construction risks.
FAQ
What is the difference between Q235 and Q355?
Q355 has higher yield strength (355 MPa) compared to Q235 (235 MPa), making it suitable for heavier loads.
Do you provide cutting services?
Yes, we can cut plates to specified dimensions on request.
Can you supply for offshore projects?
While we focus on structural applications, we can discuss specific project requirements.
Are test certificates available?
Yes, material test reports and mill certificates are provided.
What is the typical lead time for large orders?
For large volumes, we coordinate production schedules to meet deadlines. Contact us for specifics.
Do you offer galvanized option?
Yes, galvanized surface is available for enhanced corrosion resistance.
