A588 Alloy Structural Steel Plate

A588 alloy structural steel plate is a kind of weather-resistant steel plate, and its material standard is ASTM A588/A588M. It is a type of low-alloy high-strength structural steel and is mainly used for structural components in outdoor exposure environments, such as bridges, large containers, chimneys, etc.


A588 alloy structural steel plate not only has high weather resistance to resist atmospheric corrosion, but also has good mechanical properties. As a matter of fact, this steel plate can form a protective layer on the surface of the metal substrate through alloying of Cu, P, Cr, Ni, etc., thus having high atmospheric corrosion resistance. The steel plate has high tensile strength and yield strength at room temperature, and has good elongation properties. The steel plates are widely used in structural engineering fields such as bridges, high-rise buildings, towers, and transmission towers. Its weather resistance can provide long-term structural stability and strong resistance to atmospheric corrosion, thus extending the service life of the structure.


Product Parameters

Product NameA588 Alloy Structural Steel Plate
Production ProcessHot Rolling, Cold Rolling
Material StandardsAISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc.
Length1m-12m, or Customized Size
Delivery ConditionsRolling, Annealing, Quenching, Tempered or Standard
Surface ProcessOrdinary, Wire Drawing, Laminated Film

Chemical Composition


Mechanical Properties

ThicknessYield Strength(Ksi)Tensile StrengthMin (ksi)min. 2″ Elongation%min. 8″ Elongation%
Below 4mm50702118
4in.-5 in.466721
5in.-8 in.426321

Scope of Application

ASTM A588 alloy steel has many applications: outdoor sculpture, crane, bridge, rail car, transmission tower, highway pole and shipbuilding.

Equivalent Material

American Standard ASTM A588ASME SA588German Standard DIN, WNrUnited Kingdom BSItaly UNIEuropean Standard EN
A588 Grade ASA588 Grade AWTSt 52-3WR 50 CFe 510 D2K1S355J2G1W


We have complete testing equipment and strong technical force. The company has advanced production equipment, equipped with key equipment such as pressing machines, large heat treatment furnaces, beveling machines, sawing machines, large sandblasting machines, and various testing instruments.


Our products are processed by professional technicians, and each product is carefully screened before shipment. We′re pleased to get your Inquiry and we will come back to as soon as possible.


We provide products with competitive prices based on good quality and schedule each shipment on time. We′re pleased to get your Inquiry and we will come back to as soon as possible.


Our main manufactures are stainless steel, galvanized steel, carbon steel and etc. That apply to engineering, coal mine, textile, electric power, boiler, machinery, military industry and other fields.

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The issues you care about

Yes, we could provide the free samples on conditions it is available in stocks, however, the transportation fee is borne by buyer.

Each piece of products is manufactured by certified workshops, inspected piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

We accept third-party inspections such as SGS, V-trust, TUV, DNV, etc.

Yes, we could make custom products according to your specific requirements.

Generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers’ requirement.

30% T/T in advance, the balance 70% before delivery. We will show you the photos of products and package before you pay the balance.


For stocks, we could transport the goods to loading port within 7 – 15 days after we received your deposit. For production period, it usually takes about 15 days-30 days after receiving the deposit.

Our company has the ability to supply large projects and offers excellent preferential policies for large orders.

You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

Under normal circumstances, we ship from Shenzhen, Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.

Of course, we welcome customers from all over the world to visit our factory. However, some of the plants are not open to the public.

In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry during the next working day.


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Shipping worldwide


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