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Hot Rolled Q355 S355JR Low Alloy Carbon Steel Plate High Strength Structural Steel Plate For Building Frame
Product Spotlights
Hot rolled Q355/S355JR structural steel plate offering 355 MPa minimum yield strength for high load-bearing capacity. Features excellent weldability and formability for efficient fabrication. Cost-effective solution for building frames, bridges, and industrial structures. Compliant with GB and EN standards, backed by ISO-certified manufacturing and global export expertise.
US$ 0.4 - 0.6
MOQ: 100 Kilograms
Key Specifications
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Material Grade:
Q355 / S355JR
Production Process:
Hot Rolled
Steel Type:
Low Alloy High Strength Carbon Steel
Payment & Shipping
Payment Methods:
Port of Shipment:
shanghai
Delivery Detail:
15 days
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Material Grade
Q355 / S355JR
Production Process
Hot Rolled
Steel Type
Low Alloy High Strength Carbon Steel
Primary Application
Building Frame / Structural Components
Standard Compliance
GB/T 1591, EN 10025-2
Available Thickness
Customizable upon request
Available Width
Customizable upon request
Available Length
Customizable upon request
Surface Finish
Hot rolled mill scale
Delivery Condition
As rolled
As a leading manufacturer specializing in high-performance steel products, Wuxi Yansheng Technology Co., Ltd. proudly presents our Hot Rolled Q355/S355JR Low Alloy Carbon Steel Plate. Engineered for demanding structural applications, this plate offers an exceptional balance of high strength, good weldability, and cost-effectiveness, making it a reliable choice for constructing robust building frames and other critical load-bearing structures. With our established expertise since 2017 and a commitment to stringent quality control under ISO 9001 and other recognized standards, we deliver steel plates that meet the precise requirements of projects worldwide, from skyscrapers to industrial facilities.
Core Product Features & Technical Advantages:
- Superior Strength & Durability: The Q355/S355JR grade signifies a minimum yield strength of 355 MPa, providing excellent load-bearing capacity for frames, columns, beams, and trusses, ensuring long-term structural integrity.
- Enhanced Weldability & Formability: As a low alloy steel, it offers improved weldability compared to higher carbon steels, reducing the risk of cracking during fabrication. Its good formability allows for bending and shaping to meet specific architectural designs.
- Cost-Effective Material Solution: Delivering high strength without the premium cost of some alloy steels, it provides an optimal solution for projects where budget and performance are both key considerations.
- Hot Rolled for Consistency: Produced through a controlled hot rolling process, the plate achieves a homogeneous microstructure, resulting in consistent mechanical properties throughout its entire volume.
Detailed Technical Specifications:
| Parameter | Typical Value / Description |
|---|---|
| Standard Designations | Q355 (GB/T 1591), S355JR (EN 10025-2) |
| Yield Strength (Min) | 355 MPa |
| Tensile Strength | 470 - 630 MPa |
| Elongation | ≥ 22% (varies with thickness) |
| Impact Toughness (KV at +20°C) | ≥ 27 J (for S355JR) |
| Chemical Composition (Typical) | Low Carbon, Manganese, Silicon, with controlled Phosphorus and Sulphur |
| Surface Condition | Hot rolled with mill scale (can be supplied as shot blasted upon request) |
| Common Applications | Building frames, bridges, industrial plants, transmission towers, heavy machinery frames |
Benefits for Your Project:
- Structural Reliability: Provides the necessary strength and toughness to withstand dynamic loads, wind forces, and seismic activities, ensuring safety.
- Fabrication Efficiency: Easier welding and cutting streamline the construction process, saving time and labor costs on-site.
- Design Flexibility: Suitable for a wide range of structural shapes and sizes, supporting innovative architectural concepts.
- Global Compliance: Meets both Chinese (GB) and European (EN) standards, facilitating its use in international projects across our main markets including North America, Europe, Southeast Asia, and the Middle East.
Frequently Asked Questions (FAQ):
-
What is the difference between Q355 and S355JR?
Both denote a minimum yield strength of 355 MPa. Q355 is the Chinese standard (GB/T 1591) designation, while S355JR is the European standard (EN 10025-2) designation. The "JR" indicates a specified impact toughness at room temperature. We supply plates compliant with either standard based on customer requirement. -
Can this steel plate be used for welding?
Yes, its low carbon equivalent and controlled chemical composition make Q355/S355JR plates highly suitable for welding. Standard welding procedures for low alloy steels are applicable, though specific procedures should be qualified for critical applications. -
What thickness and size ranges are available?
We offer a wide range of thicknesses and dimensions. Specific available sizes depend on current mill production. Please contact us with your required thickness, width, and length for a precise quotation and availability check. -
Is surface treatment available?
The standard supply condition is hot rolled with mill scale. Optional surface treatments like shot blasting to SA 2.5 or painting primer can be arranged upon request to suit your fabrication schedule. -
What certifications accompany the material?
Our plates can be supplied with Mill Test Certificates (MTCs) that detail the chemical composition and mechanical properties per heat/batch. Our manufacturing facility operates under an ISO 9001 quality management system. -
What is the lead time and packaging?
Lead times vary based on order quantity and specifications. Standard packaging includes waterproof wrapping and secure bundling for sea freight. We ship from major ports like Shanghai, Tianjin, Qingdao, and Ningbo for efficient global logistics. -
Is this material suitable for outdoor structures?
Yes, it is commonly used for outdoor building frames and structures. For long-term exposure in corrosive environments, additional protective measures like painting or galvanizing are recommended. -
Can you provide material for non-building applications?
Absolutely. While ideal for building frames, this grade is also widely used in bridge construction, heavy vehicle chassis, mining equipment, and other industrial machinery requiring high-strength structural components.
Backed by our annual export value of US$50-100 Million and a dedicated team of 101-200 professionals operating from our 1,000-3,000 sqm facility, Wuxi Yansheng Technology is positioned as a reliable partner for your steel supply needs. Our commitment to quality, evidenced by multiple management system certifications, ensures that every Hot Rolled Q355/S355JR Steel Plate we deliver contributes to a safer, stronger, and more efficient structure. Contact us today to discuss your project specifications, request a sample, or get a competitive quote tailored to your volume and delivery requirements.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2017
Factory Size
1,000-3,000 square meters
Annual Export Value
US$50 Million - US$100 Million
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