Home page

A588 Carbon Steel Plate

ASTM A588 is a high-strength low-alloy (HSLA) structural steel widely known as weathering steel. It provides a minimum yield strength of 50 ksi (345 MPa) along with superior atmospheric corrosion resistance (typically 4-6 times that of plain carbon steel) due to alloying elements such as copper, chromium, nickel, and silicon that form a protective, adherent oxide patina. This steel is designed for applications where high strength, durability, and reduced maintenance are required, particularly in exposed structural applications.

Classification :

Carbon Steel Plate

WhatsApp : ‪+8615169059652

E-mail : auden@zhongwangsteel.com

PRODUCT DETAILS

A588 Carbon Steel Plate Description

Product Specifications

Parameter	Specification
Product Name	ASTM A588 Weathering Steel Plate
Production Process	Hot Rolling (primary process for structural plate)
Applicable Standards	ASTM A588/A588M, EN 10025-5, JIS G3114
Thickness Range	6 mm to 200 mm (conventional structural range)
Width Range	1500 mm to 3000 mm (plate mill standard)
Length Range	3000 mm to 12000 mm (custom lengths available)
Delivery Conditions	As-Rolled, Normalized (annealing is uncommon)
Surface Finish	Mill Scale (as-rolled), Shot Blasted, Pickled

hemical Composition (%)

Grade	C max	Mn	P max	S max	Si	Cr	Ni max	Cu min*
A	0.19	0.80-1.25	0.04	0.05	0.30-0.65	0.40-0.65	0.40	0.20
B	0.20	0.75-1.35	0.04	0.05	0.15-0.50	0.40-0.70	0.50	0.20
C	0.15	0.80-1.35	0.04	0.05	0.15-0.40	0.30-0.50	0.25-0.50	0.20
K	0.17	0.50-1.20	0.04	0.05	0.25-0.50	0.40-0.70	0.40

Mechanical Properties

Thickness (mm)	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (min %)
			in 200 mm	in 50 mm
≤ 100	485	345	18	21
>100 - 125	460	315	-	21
>125 - 200	435	290	-	21

Physical Properties

Property	Metric	Imperial
Density	7.85 g/cm³	0.284 lb/in³
Modulus of Elasticity	200 GPa	29,000 ksi
Coefficient of Thermal Expansion	11.5 × 10⁻⁶/°C	6.5 × 10⁻⁶/°F

Typical Applications

Bridges and Highway Structures

Transmission Towers and Utility Structures

Exposed Architectural Building Facades and Roofing

Railway Rolling Stock and Containers

Unpainted Industrial Structures in Corrosive Atmospheres

Processing & Handling Notes

Welding: Use low-hydrogen electrodes and follow preheat/interpass temperature guidelines.

Cutting: Flame, plasma, laser, and waterjet cutting are all applicable.

Surface Preparation: The protective patina develops over 6-24 months; initial runoff may occur.

Packing and delivery

The company has become a trustworthy partner of the international steel industry. After nearly two decades of unremitting efforts, our customer base now covers more than 110 countries and regions in Europe, the Middle East, South America, and Southeast Asia.

Quality Inspection

Our company has passed ISO9001 quality management system certification, Our Mill product with CE/EN10204 / ASTM/Classification society certificate/CASO/BIS etc certificate.All the customers give good appreciation to our products.We are glad to be your good partner. Warmly welcome you to visit our factory!

FACTORY WORKSHOP

CERTIFICATES

VERIFICATION OF CONFORMITY

QUALITY MANAGEMENT SYSTEM CERTIFICATE

CERTIFICATE OF QUALITY MANAGEMENTSYSTEM CERTIFICATION

CERTIFICATE OF MANUFACTURING ASSESSMENT

CERTIFICATION OF QUALITY MANAGEMENT SYSTEM

NTEGRITY MANAGEMENT LIXIN ENTERPRISE

HONEST SUPPLIER ENTERPRISE

HONORARY CERTIFICATE OF HONEST ENTREPRENEUR

PARTNERS

APPLICATION FIELD

New Energy

Energy extraction

Precision Manufacturing

Aerospace

Bridge construction

Rail Transit

FAQ

Q:Does the product have quality inspection before loading?

A: Of course, all our products are strictly quality tested before packing, unqualified products will be destroyed, customers can appoint a third party to inspect the products before loading as well.

Q:Can l go to your factory to visit?

A: Of course, we welcome customers from all over the world to visit our factory

Q:How many countries you already exported to?

A: We have exported to the United States, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana, Somalia and other African countries. We have rich export experience, we are familiar with different market demands and can help customers avoid a lot of trouble.

Q:How long does your delivery time take?

A: Generally speaking, our delivery time is within 7-15 days, if the quantity is very large or special circumstances occur, it may be longer.

Q:lt's my first time to import steel products, can you help me with it?

A: Of course, we have agent to arrange the shipment and we will do it with you.

Q:What product information do l need to provide?

A: Please provide the grade, width, thickness, surface treatment requirements (if you have any) and the quantity you need to purchase.