ASTM A709-50W Corten Steel Sheet and Plate

ASTM A709-50W Corten steel sheet and plate is a specialized weathering structural steel grade, crafted specifically for bridge construction and heavy infrastructure projects that demand outstanding resistance to atmospheric corrosion. The “W” in its name signifies its superior weathering capabilities compared to regular carbon steels, allowing it to form a protective rust-like patina that helps cut down on maintenance costs by preventing further corrosion. This grade is known for its impressive strength and toughness, along with exceptional durability, making it perfect for harsh environments that face the elements. ASTM A709-50W steel comes in a variety of thicknesses and sizes, all designed to meet the rigorous standards for bridges and infrastructure around the globe.

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ASTM A709-50W plate

ASTM A709 grade 50w weathering steel plate

ASTM A709-50W corten weathering steel plate

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When it comes to its chemical makeup, ASTM A709-50W includes carbon (max 0.23%), manganese (0.85–1.35%), phosphorus (max 0.03%), sulfur (max 0.03%), silicon (0.15–0.40%), copper (0.40–0.65%), chromium (0.40–0.65%), and nickel (0.40%). These alloying elements work in harmony to boost both corrosion resistance and mechanical strength. Typically, you can expect a minimum yield strength of 345 MPa and a tensile strength ranging from 485 to 620 MPa. The steel also boasts excellent weldability and toughness, particularly in low-temperature settings, making it a reliable choice for critical structural applications like bridges and heavy-duty construction.

ASTM A709-50W Corten Steel Sheet and Plate Specification

Thickness	Width	Length
6 to 100 mm	900 to 4800 mm	3000 to 12000 mm
Standard	Services	Grades
ASTM A709	welding, forming, thermal cutting	50W, 50WT, 50WF

ASTM A709-50W Corten Steel Sheet and Plate Chemical Composition

TYPE	THICKNESS (in)	MN (wt %)	C (MAX wt %)	S (MAX wt %)	NI (MAX wt %)	P (MAX wt %)	V (wt %)	SI (wt %)	CR (wt %)	CU (wt %)
B	2.00 – 3.00	0.75 – 1.35	0.20	0.030	0.50	0.030	0.01 – 0.10	0.15 – 0.50	0.40 – 0.70	0.20 – 0.40
A	0.1875 – 2.00	0.80 – 1.25	0.19	0.030	0.40	0.030	0.02 – 0.10	0.30 – 0.65	0.40 – 0.65	0.25 – 0.40

ASTM A709-50W Corten Steel Sheet and Plate Specification

GRADE	THICKNESS (in)	ELONGATION IN 8″ 2) (MIN %)	TENSILE STRENGTH (MIN ksi)	YIELD STRENGTH 1) (MIN ksi)	ELONGATION IN 2″ 2) (MIN %)
50WT	0.1875 – 3.00	18	70	50	21
50W	0.1875 – 3.00	18	70	50	21
50WF	0.1875 – 2.50	18	70	50	21

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ASTM A709-50W Corten Steel Sheet and Plate offers several advantages, including excellent corrosion resistance, which significantly reduces maintenance costs over time. Its weathering properties allow it to form a stable rust-like appearance that protects the underlying steel from further damage. This makes it ideal for outdoor applications like bridges, buildings, and other structures exposed to harsh environments. The material’s high strength and durability ensure long-lasting performance, while its aesthetic appeal adds to its popularity in architectural designs. Overall, it provides cost-effective, low-maintenance solutions for various industries.

Types of ASTM A709-50W Corten Steel Sheet and Plate

Are Custom Sizes Available for ASTM A709-50W Corten Steel Sheet and Plate?

Yes, we offer custom sizes for ASTM A709-50W Corten Steel Sheet and Plate to meet specific project needs. Our team at Wiraphan Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@wiraphansheetsplates.com.

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Application Industry of ASTM A709-50W Corten Steel Sheet and Plate

You’ll find ASTM A709-50W Corten steel sheets and plates primarily used in bridge fabrication, highway structures, heavy machinery bases, and large infrastructure projects where durability and low maintenance are key. Its weathering properties mean less need for painting, which helps lower lifecycle costs while giving a unique rust-colored look that’s popular in modern architectural and engineering designs. This steel is also utilized in marine environments, power plants, and industrial buildings.