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high strength steel plate
we can ensure that the steel we source is tailored to the needs of our valued customers.
high strength steel plate line

High strength steel plate is divided into Q390, Q420, Q460, Q550 and Q690 models, which have the characteristics of high strength and strong welding performance, so they are commonly used in all kinds of large welded parts.

High strength steel plate

 High strength steel plate is divided into Q390, Q420, Q460, Q550 and Q690 models, which have the characteristics of high strength and strong welding performance, so they are commonly used in all kinds of large welded parts.

 However, the micro-alloy elements contained in different models of steel plates are different. The higher the micro-alloy content, the higher the strength of the steel, and thus the carbon content in the steel will also increase.

Composition of high strength steel plate

Chemical Composition (%)CSiMnCrMoCuNiBV
0.160.350.60-1.500.800.15-0.600.15-1.500.10.0050.10 max.
Nearest EquivalentASTM A514 A517WES HW 685ISO E690

High strength steel plate Mechanical Property

Thickness6-700mm and customer' s requirment
SizeWidth: 1500-4020mm, length: 3000mm-18800mm and customer' s requirment

High strength steel plate

Execution standardCCS, DNV, GL, LR, BV, ABS, KR, NK, RINA, GB5313, API
Technical requirementsDetection, Z15 - Z35 thickness direction performance requirements, high strength and high toughness requirements, etc
Delivery status
According to the properties and requirements of customers, Steel plate can hot-rolled, controlled rolling, normalizing, annealing, tempering, normalizing add tempering, piece. modified such status delivery.
Delivery timeAccording to the order quality and customer' s requirment
ApplicationShibuilding steel plate: used to make the hull, sea oil drilling platform, platform tube contacts and other structures.
Packaging DetailsBundle, loose and bare or according customer inquire

Specification of high strength steel plate

Product Name

High strength steel plate 


Hot rolled/Cold rolled







Terms of payment

30%T/T deposit in advance, 70%T/T the balance before shipment,under $10,000, pay in full by T/T.,L/C at sight.etc.


ASTM A53/ASTM A573/ATSM A283/GB/T700-2006,GB/T711-2008,JIS G3101/JIS G3131

Surface Treatment

Bare,Black,Oiled,Shot Blasted,Spray Paint,Coated,Galvanized,or as Your Request


Applies to appliances construction, machinery manufacturing, container manufacturing, shipbuilding, bridges, etc

Coil Weight

3 - 8 ton or as Your Request


Standard Export packing(Plastic film in the first layer,second layer is Kraft paper. Third layer is galvanized sheet)

Characteristics of high strength steel plate

    High-strength wear-resistant steel is developed on the basis of low-alloy high-strength weldable steel with good wear resistance and a service life of several times that of conventional plan steel plates.

    The production process is relatively simple. The method of quenching and tempering directly after rolling is generally used, or the controlled rolling and cooling process is used to stop strengthening. The content of alloying elements in high-strength wear-resistant steel is relatively small, usually 1% ~ 3%.

    It can meet the application requirements of large construction machinery in harsh environment such as high wear resistance, short life and simple cold forming.

Applications of high strength steel plate

 Performance and wear resistance of high strength steel plate:According to IRMCO technology first station and years of application experience, high strength steel plate stamping dies can meet the consumer demand and extend the die life without expensive coating cost.

 It is mainly used for large ships, bridges, power station equipment, medium and high pressure boilers, high pressure vessels, and other large welded structural parts.

 High strength plates are also widely used in various construction machinery, such as drilling rigs, electric shovels, electric wheel dump trucks, mining trucks, excavators, loaders, bulldozers, cranes, hydraulic supports for coal mines and other structural parts for various engineering constructions.

 High strength steel plate can meet the long-term demand of energy construction and is an important support to ensure the safety of people and property in coal mine production operations.

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export country

We are a well known worldwide supply and export High strength steel plate in following countries:,Italy, Philippines, France,Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.

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