A709 Gr50W Corten Steel Plate

 

 

 

 

 

 

A709 GR50 Steel Plate

1. Material Overview

Grade: A709 GR50

Standard: ASTM A709/A709M (Specification for Structural Steel for Bridges)

Type: High-strength low-alloy (HSLA) structural steel plate

Thickness Range: 6–300 mm

Equivalent Grades: A572 GR50 (commonly referenced for non-bridge applications)

2. Key Applications

Designed primarily for bridge construction, A709 GR50 is also widely used in:

 

Structural steel for buildings (e.g., high-rise frames, industrial facilities).

Heavy machinery (e.g., mining equipment, construction machinery).

Transportation (e.g., truck frames, railway components).

Pressure vessels and storage tanks requiring high strength and weldability.

3. Chemical Composition (Typical Values)

Element	Content Range (%)	Role in Performance
Carbon (C)	≤0.23	Balances strength and weldability
Silicon (Si)	0.15–0.40	Enhances deoxidation and strength
Manganese (Mn)	0.80–1.25	Improves hardenability and toughness
Phosphorus (P)	≤0.04	Controls brittleness
Sulfur (S)	≤0.05	Reduces hot shortness
Niobium (Nb)	0.005–0.05	Microalloying for grain refinement
Vanadium (V)	≤0.05 (optional)	Enhances strength through precipitation

 

 

 

 

 

 

Key Characteristics

High Strength:

Ideal for load-bearing components in bridges (e.g., girders, columns) and heavy structures, reducing material thickness and weight compared to mild steel.

Excellent Weldability:

Low carbon equivalent (CE ≤0.45) ensures minimal risk of hydrogen-induced cracking.

Suitable for common welding processes (e.g., SMAW, GMAW, FCAW) with low-hydrogen electrodes (e.g., E7018).

 

 

 

 

 

Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
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Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.
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We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
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Our factory is committed to upholding the highest standards of safety and quality.
All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.
Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

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