Mechanical Properties

Grade	Thickness (mm)	Yield Strength (≥MPa)	Tensile Strength (MPa)	Elongation (≥%, 5D)	Impact Energy (Charpy V-Notch)
A633 Grade A	≤16	295	430–560	21	Not specified
A633 Grade C	≤16	325	490–620	19	-20°C ≥27J (longitudinal)
A633 Grade D	≤16	345	510–650	19	-29°C ≥27J (longitudinal)
A633 Grade E	≤16	345	510–650	19	-46°C ≥27J (longitudinal)

 

Key Notes:

 

Yield Strength: Increases with grade (A < C < D/E) and decreases slightly with thickness (e.g., Grade E yield strength drops to 315 MPa at 40–65 mm thickness).

Impact Toughness: Higher grades (D/E) are critical for cold climates or structures subjected to dynamic loads (e.g., bridges, offshore platforms).

 

 

 

 

 

 

Applications

A633 steel is ideal for heavy-duty structural projects requiring a balance of strength, toughness, and durability:

 

Bridges: Long-span bridges, highway/railway overpasses (Grade D/E for cold regions).

Industrial Structures: Power plant boilers, high-pressure vessels, and petrochemical equipment.

Marine and Offshore: Offshore platforms, ship structures, and port facilities (Grade D for seawater resistance).

Heavy Machinery: Cranes, mining equipment, and industrial framing (Grade C for dynamic loads).

Cold-Climate Projects: Structures in arctic regions or high-altitude areas (Grade E for -46°C impact resistance).

 

 

 

 

Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
We analyze and compare the previous products and the current technical situation of our A633 High Strength Low Alloy Steel Plate, and develop new technical specifications and processes.
Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.
We strictly implement the warm and thoughtful after-sales service, adhere to the development of good professional ethics.
We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
We adhere to the customer-centric and brand-oriented business philosophy, and continue to provide customers with reliable and excellent products and services.
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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