A588 | Weathering Steel
A588 | Weathering Steel
A588 Weathering Steel is a high-strength, low-alloy steel with atmospheric corrosion resistance commonly used in bridges and buildings. The “A588” name comes from ASTM standards. This steel meets ASTM A588/A588M, forming a rust-like layer, reducing painting needs when exposed. It has strong tensile strength, corrosion resistance, and weldability, ideal for outdoor sculptures, bridges, and structures. Similar grades include S355J0W, A242Gr.1.
Description
What is A588？
A588 is a high-strength, low-alloy steel used in angles, channels, beams, plates, and bars. Made from approximately 0.4% copper, 0.4-0.7% chromium, 0.15-0.5% silicon, 0.2-0.5% nickel, and other elements, it resists weathering by forming a protective rust layer. Hot-rolled for added durability, it is ideal for outdoor structures like bridges and buildings but not for load-bearing parts above 450°C. It comes in grades including A, B, C, K, each with slight strength differences.Why Choose A588 Weathering Steel?
For construction projects needing durable, low-maintenance steel, A588 Weathering Steel is a top choice, available in multiple grades for different needs. Here’s why A588 could be perfect for you. A588 offers strong corrosion resistance, cutting down on painting and upkeep and saving costs in the long run. Its high strength and rust-protective layer make it ideal for bridges, facades, and outdoor structures. Easy to weld and highly durable, it also speeds up fabrication. Unlike other weathering steels, A588 stands out for its versatility and strength across various grades, giving you flexibility for different structural needs. For other conditions, steels like S355J2W, A242, or A606 can also serve well, especially for projects with specific stress or temperature requirements.Product Specification
| Category | Details |
| Quality Standard | ASTM A588/A588M |
| Certifications | ASTM G101, ISO 9001, ISO 630, ISO 6892, BV, SGS, JIS G 3114 |
| Thickness | 6-100mm |
| Width | 900-4800mm |
| Length | 3000-25000mm |
| Weight | Depends on length and width |
| Outer diameter (OD) | Pipes:60 mm to 600 mm, Bars: 10 mm to 80 mm |
| Inner diameter (ID) | Pipes: 50 mm to 600 mm |
| Tolerances | Thickness: ±0.3 to ±1.2 mm, Width: ±3 to ±10 mm, Length: ±5 to ±20 mm |
| Technology | Hot Rolling |
| Processing Service | Welding, Punching, Cutting, Bending, Decoiling |
| Shapes | Weathering Steel Plate, Weathering Steel Sheet, Pipes, Profiles |
| MOQ (Minimum Order Quantity) | 5 tons (according to the actual tonnage) |
| Lead Time | Typically 7-20 days (The larger the ordered tonnage, the longer the delivery time) |
| Price Terms & Payment | Based on customer requirements, T/T, L/C |
| Ports | Qingdao, Lianyungang, Dalian |
| Export Countries | Southeast Asia, Central Asia, Europe, Russia, South America, Middle East, etc. |
| Shipping Method | Offers Sea, Air and Customized Shipping |
Chemical Compositions
| Element | Grade A (%) | Grade B (%) | Grade C (%) | Grade K (%) |
|---|---|---|---|---|
| Carbon, C | Max 0.19 | Max 0.2 | Max 0.15 | Max 0.17 |
| Silicon, Si | 0.3 – 0.65 | 0.15 – 0.5 | 0.25 – 0.55 | 0.25 – 0.5 |
| Manganese, Mn | 0.8 – 1.25 | 0.75 – 1.35 | 0.8 – 1.3 | 0.5 – 1.2 |
| Phosphorus, P | Max 0.03 | Max 0.03 | Max 0.04 | Max 0.03 |
| Sulfur, S | Max 0.03 | Max 0.03 | Max 0.03 | Max 0.03 |
| Chromium, Cr | 0.4 – 0.65 | 0.4 – 0.7 | 0.3 – 0.65 | 0.4 – 0.7 |
| Nickel, Ni | Max 0.4 | Max 0.5 | Max 0.4 | Max 0.4 |
| Copper, Cu | 0.25 – 0.4 | 0.2 – 0.4 | 0.3 – 0.5 | 0.3 – 0.5 |
| Vanadium, V | 0.02 – 0.1 | 0.01 – 0.1 | 0.02 – 0.1 | – |
| Molybdenum, Mo | – | – | – | Max 0.1 |
| Niobium, Nb | – | – | – | 0.005 – 0.05 |
Mechanical Properties
| Property | Grade A (Metric) | Grade A (Imperial) | Grade B (Metric) | Grade B (Imperial) | Grade C (Metric) | Grade C (Imperial) | Grade K (Metric) | Grade K (Imperial) |
|---|---|---|---|---|---|---|---|---|
| Tensile Strength | 485 MPa | 70 ksi | 485 MPa | 70 ksi | 485 MPa | 70 ksi | 485 MPa | 70 ksi |
| Yield Strength | 345 MPa | 50 ksi | 345 MPa | 50 ksi | 345 MPa | 50 ksi | 345 MPa | 50 ksi |
| Brinell Hardness | 135 – 180 HBW | 135 – 180 HBW | 135 – 180 HBW | 135 – 180 HBW | 135 – 180 HBW | 135 – 180 HBW | 135 – 180 HBW | 135 – 180 HBW |
| Rockwell Hardness | 70 – 85 HRB | 70 – 85 HRB | 70 – 85 HRB | 70 – 85 HRB | 70 – 85 HRB | 70 – 85 HRB | 70 – 85 HRB | 70 – 85 HRB |
| Vickers Hardness | 140 – 190 HV | 140 – 190 HV | 140 – 190 HV | 140 – 190 HV | 140 – 190 HV | 140 – 190 HV | 140 – 190 HV | 140 – 190 HV |
| Elongation | 18% | 18% | 18% | 18% | 18% | 18% | 18% | 18% |
| Elastic Modulus | 200 GPa | 29000 ksi | 200 GPa | 29000 ksi | 200 GPa | 29000 ksi | 200 GPa | 29000 ksi |
Data After Normalizing Processing
| Property | Grade A (Metric) – Normalized | Grade A (Imperial) – Normalized | Grade B (Metric) – Normalized | Grade B (Imperial) – Normalized | Grade C (Metric) – Normalized | Grade C (Imperial) – Normalized | Grade K (Metric) – Normalized | Grade K (Imperial) – Normalized |
|---|---|---|---|---|---|---|---|---|
| Tensile Strength | 510 MPa | 74 ksi | 510 MPa | 74 ksi | 510 MPa | 74 ksi | 510 MPa | 74 ksi |
| Yield Strength | 355 MPa | 52 ksi | 355 MPa | 52 ksi | 355 MPa | 52 ksi | 355 MPa | 52 ksi |
| Brinell Hardness | 150 – 190 HBW | 150 – 190 HBW | 150 – 190 HBW | 150 – 190 HBW | 150 – 190 HBW | 150 – 190 HBW | 150 – 190 HBW | 150 – 190 HBW |
| Rockwell Hardness | 75 – 90 HRB | 75 – 90 HRB | 75 – 90 HRB | 75 – 90 HRB | 75 – 90 HRB | 75 – 90 HRB | 75 – 90 HRB | 75 – 90 HRB |
| Vickers Hardness | 150 – 200 HV | 150 – 200 HV | 150 – 200 HV | 150 – 200 HV | 150 – 200 HV | 150 – 200 HV | 150 – 200 HV | 150 – 200 HV |
| Elongation | 20% | 20% | 20% | 20% | 20% | 20% | 20% | 20% |
| Elastic Modulus | 200 GPa | 29000 ksi | 200 GPa | 29000 ksi | 200 GPa | 29000 ksi | 200 GPa | 29000 ksi |
Industries & Applications
| Industries | Products |
|---|---|
| Bridge Construction | Bridge girders, Truss members, Bearing plates, Guardrails, Bridge deck panels |
| Building Facades | Wall panels, Cladding sheets, Column covers, Decorative screens, Roofing sheets |
| Transportation Structures | Railway cars, Highway barriers, Noise barriers, Support structures, Signage poles |
| Outdoor Sculptures | Art sculptures, Monuments, Landscape features, Sculptural installations, Signboards |
| Marine Structures | Dock structures, Offshore platforms, Retaining walls, Bulkheads, Fender systems |
| Industrial Equipment | Storage tanks, Conveyor supports, Frames, Silos, Machinery housings |
| Transmission Towers | Tower legs, Cross arms, Support brackets, Anchor plates, Base plates |
| Rail Infrastructure | Rail tracks, Railway ties, Overhead line structures, Signal posts, Level crossing gates |
| Agriculture Structures | Barn cladding, Fencing posts, Grain bins, Equipment frames, Storage sheds |
Machining
A588 Heat Treatment Product Options
At our steel mill, we offer A588 Weathering Steel with a variety of heat-treated options to meet specific project needs:
- Normalized A588: Heat-treated at around 900°C to improve strength and toughness, making it ideal for critical structural applications.
- Quenched and Tempered A588: Heated and then rapidly cooled, followed by tempering between 500-700°C, which increases hardness and wear resistance for heavy-duty projects.
- Annealed A588: Softened through heating to around 650-700°C, offering enhanced formability and machinability, suitable for components requiring further shaping.
- Non-heat-treated A588: Available in its as-rolled condition, retaining natural strength and corrosion resistance, often used in non-critical applications.
Each form ensures optimal performance across various structural and environmental demands. Let us know your project specifics to recommend the most suitable form.
A588 Surface Finish
We offer a range of surface treatments for A588 Weathering Steel to enhance durability and aesthetic appeal:
- Shot Blasting: Removes surface impurities, providing a clean, uniform texture ideal for coatings.
- Protective Coatings: Adds an extra layer of rust prevention for extended longevity in extreme environments.
- Oil Coating: Reduces initial oxidation during storage and transport, preserving the steel’s integrity.
- Surface Passivation: Enhances corrosion resistance by stabilizing the rust layer, perfect for long-term outdoor exposure.
- Pre-rusted Finish: Accelerates the weathered look, achieving an even patina that blends naturally into outdoor environments.
Custom surface treatment requirements can be accommodated upon request.
Disclaimer
The above information on heat treatment options and surface finish processes for A588 steel reflects the services provided by SteelPRO Group. The suitability of these services for your specific applications may vary depending on project requirements and conditions. We recommend consulting with our technical team or a metallurgical expert to ensure the right treatment and finishing are selected for optimal performance. SteelPRO Group assumes no liability for the application of this information without proper consultation.
A588 Weathering Steel Supplier
As a professional A588 Weathering Steel supplier, we bring expertise and quality to every order:
- Competitive Pricing and Customer Focus: We offer fair pricing with a commitment to client satisfaction, providing responsive support to meet project needs efficiently.
- Reliable Supply and Quality Materials: Our A588 steel is sourced from top-grade materials and produced with stable processes to handle orders of all sizes.
- Full Product Range with Precision Processing: We supply a wide variety of A588 products, with precision processing options like cutting, bending, and welding to fit exact project specifications.
- Strict Quality Assurance and Certification: Each batch undergoes rigorous quality control, with certifications like EN 10204 3.1/3.2 to meet international standards.
- Custom Solutions, Safe Packaging, and Efficient Logistics: We provide fully tailored A588 solutions, secure packaging for safe transit, and transparent logistics updates to keep you informed on delivery progress.
Our Service
SteelPRO Group – manufacturer and solution provider for special steel, offering multi-industry application solutions and customised services, 100% quality free, accompanying customers in their growth!
Our Quality Control
- Roundness
- Tolerance
- Microstructure
- Non-Destructive Testing
- Destructive Testing
- Process Control
Service Integration Processing
- Welding
- Metal Fabrication
- CNC Machining
- Lathe
- Forming
Can You Provide Customized Dimensions For A588 Steel?
Yes, we offer customization in size and shape to meet your exact project specifications, including bespoke dimensions for plates, bars, and other forms of A588 Weathering Steel.
What Is The Durability Of A588 Steel In Marine Environments?
A588 Steel performs well in marine and coastal environments due to its corrosion-resistant properties, but additional protective measures can further enhance longevity in highly saline conditions.
Are Welding Services Available For A588 Weathering Steel?
Yes, we provide professional welding services for A588 Steel, following precise guidelines to ensure structural integrity and maintain its corrosion-resistant properties.
Do You Offer Volume Discounts On Large Orders?
Yes, we offer competitive pricing tiers and discounts for bulk purchases, making large orders more cost-effective based on quantity.
How Quickly Can You Respond To Custom Inquiries?
We prioritize prompt responses to all custom requests, typically replying within 24 hours to discuss specifics and provide detailed solutions.
Can You Arrange Samples Before A Full Order?
Certainly, we can arrange samples for you to assess quality, finish, and suitability before placing a full-scale order.
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