SMA490BW Weather Resistant Steel Plates

 

SMA490BW weathering Steel Plate is a low-alloy weathering steel that can resist atmospheric corrosion from sulfur dioxide, chlorides, and other substances.

 

As a result, it is commonly used in structural applications such as bridges and buildings that are exposed to outdoor air year-round, as well as in railway vehicles and other industrial equipment.

 

The composition of SMA490BW Corten Steel Plate typically includes elements such as copper, chromium, and nickel.

 

The copper content is usually between 0.25% and 0.55%, the chromium content is between 0.40% and 0.80%, and the nickel content is between 0.25% and 0.55%.

 

The addition of these elements helps the steel form a dense oxide layer when exposed to the atmospheric environment, significantly enhancing its resistance to atmospheric corrosion.

 

 

Standard	JIS G3114
Type	Hot-rolled atmospheric corrosion-resistant steel
Grade	SMA490BW
Thickness	1.2mm – 50mm
Width	1200mm – 4200mm
Length	3000mm – 18000mm
Surface Treatment	Coated or uncoated, depending on the requirements
Tensile Strength	490-610 MPa
Yield Strength	≥365 MPa (for thicknesses up to 16mm)
Elongation	17-23% (varies with thickness)
Impact Test	Can be conducted at low temperatures as required
Welding	Good weldability, compatible with various welding techniques
Corrosion Resistance	Forms a stable, protective layer (patina) upon exposure to atmospheric conditions, minimizing further corrosion

 

 

• Corrosion resistance: SMA490BW Steel Plate is highly resistant to atmospheric corrosion, making it ideal for use in outdoor applications.

 

• High strength: The steel has a minimum yield strength of 365 MPa and a minimum tensile strength of 490 MPa, making it a strong and durable material for structural applications.

 

• Good toughness: SMA490BW Weathering steel Plate has good toughness and ductility, allowing it to withstand harsh weather conditions and other forms of stress.

 

• Weldability: The steel can be easily welded using common welding methods, making it suitable for use in a variety of construction applications.

 

• Formability: SMA490BW Weather Resistant Steel Plate can be easily formed and shaped to meet the specific requirements of different applications.

 

 

Grade	C ≤	Si	Mn ≤	P ≤	S ≤	Cu	Cr	Ni	Ce ≤
SMA490BW	0.18	0.15~0.65	1.40	0.035	0.035	0.30~0.50	0.45~0.75	0.05~0.30	-

 

 

Min Yield Strength ( MPa )						Tensile Strength	Elongation A%	Impact test
Thickness of plates and sections (mm)								Degree	Energy
≤ 16	＞16- ≤ 40	＞40- ≤ 75	＞75- ≤ 100	＞100- ≤ 160	＞160- ≤ 200	490-610	15 min	0	27

 

 

 Low Temperature Impacting Test: Ensures durability and resistance under extreme weather conditions.

 

 Custom Cutting and Welding: Services tailored to meet the specific requirements of end-users, providing flexibility for various applications.

 

 Stricter Control Over Chemical Composition: We maintain rigorous standards to ensure optimal performance, especially in weathering resistance.

 

 Ultrasonic Testing: Conducted under EN 10160, ASTM A435, A577, A578 to detect internal defects and ensure material integrity.

 

 Original Mill Test Certification: Issued in accordance with EN 10204 Format 3.1/3.2 for guaranteed quality and compliance with international standards.

 

 

 

Architectural Projects: Its distinctive look is perfect for facades, bridges, and sculptures.

 

Structural Components: Ideal for outdoor structures such as bridges, transmission towers, and industrial facades.

 

Marine Environments: SMA490BW Plate resists corrosion in harsh marine conditions, making it suitable for port structures and offshore installations.

 

 

At Gnee, we know how critical on-time delivery and quality consistency are. Our streamlined project management system ensures every order is traceable, transparent, and executed with precision from start to finish.

Our one-stop delivery service includes:

 Clear production timeline and project planning

 

 CNC machining with strict manual inspections

 

 100% final inspection before shipping with factory reports

 

 Comprehensive export logistics and document support

 

 Ongoing installation guidance and after-sales support

 

Contact now to get SMA490BW Quote