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ASTM A572 Grade 55 HSLA Steel

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Standard: ASTM, AISI, GB, JIS, DIN, BS

Production Capacity: 50000 Tons/Month

ASTM A572 Grade 55 HSLA Steel

ASTM A572 grade 55 is a type of ASTM A572 steel. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. The graph bars on the material properties cards below compare ASTM A572 grade 55 to: wrought alloy steels in the same category (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

A572 Gr.55 steel plate is high strength low alloy columbium-vanadium structural steel grade.Compare with A572 Gr.50, A 572 Gr55 steel has a more yield and tensile strength in project.

Chemical composition of A572 Grade 55, %

















Mechanical Property of A572 Grade 55






Charpy V Impact Test


Energy 1

Energy 2



Min Mpa


Min %










Other steel category:

Boiler steel plate

Marine steel

Corten steel plate

Stainless steel plate

HSLA steel plate

API Pipeline steel

Spring steel

Cold rolled steel

High Yield Steel

Section steel

Grade 55 Steel Plate Additional requirements:

UT: EN 10160-S3E3/S3E4, SEL 072-Ⅰ; JIS G 0801, EN10160-S2E2/S2E3, SEL 072-Ⅱ, A578 Level C; SEL 072-Ⅲ/Ⅳ, EN10160-S1E1/S0E1, A578 Level B; A578 Level A, A435.

A572 Grade 55 Steel Plate Specification:

Thickness 8mm-200mm, 
Width: 1500-4020mm, 
Length: 3000-27000mm
We can supply any size based on customer's requirements.
Standard: ASTM A572Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel
Classification: Normalized rolled weldable fine grain structural steels

As the professional A572 Gr.55 steel plate Chinese supplier, we will supply our customers the best quality with the competitive price ,the best service and rapid delivery time. If you purchase the A 572 Gr55 steel , we support you to pay a visit to our company and do inspection. If you have any need of A572 Grade 55 Steel Plate, you are welcome to contact me .We are sincerely looking for your cooperation.

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