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EN 10025-6 S550QL High Strength Low Alloy Steel (HSLA) Plate

Oct 16, 2025 Leave a message

Products Description

 

S550Q low alloy steel material has high strength, good toughness, fatigue resistance, impact resistance, corrosion resistance, and excellent welding and easy processing properties. The chemical composition of S550Q high strength low alloy steel is precisely controlled to ensure excellent mechanical properties.

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S550Q low alloy steel plate is widely used in construction, bridges, vehicle manufacturing and machinery manufacturing, and can be used in the manufacture of load-bearing structures and bridge decks of workshops and bridges.

 

Products Specification

 

Production Size: Thickness: 4mm- 400mm;

 

Width: 1000mm- 4000mm;

 

Length: 4000mm- 12000mm.

 

Production ability:10000 Tons Per Month.

 

Production Way: Hot Rolled, Quenched( Q).

 

Chemical Composition( %)

 

Grade/ Material

Element

Composition( Max-A, Min-I)

DIN EN 10025-6 S550Q

C

A:0.20

Mn

A:1.70

Si

A:0.80

P

A:0.025

S

A:0.015

 

Mechanical Properties( Mpa)

 

Grade/ Material

Tensile Test

MPa

DIN EN 10025-6 S550Q

Tensile Strength

640-820

Yield Strength

I:550

Elongation

I:16%

Impact Test( if any)

-20℃

 

Products Application

 

 

Construction field: used to manufacture high-rise buildings, bridges, steel structures, etc., with the advantages of earthquake resistance and wind resistance.

 

Ship field: used to manufacture ship hulls, ship plates, etc., with good seawater corrosion resistance and impact resistance.

 

Automotive field: used to manufacture automobile bodies, frames, etc., to improve vehicle safety and fuel efficiency.

 

Petrochemical field: used to manufacture storage tanks, pipelines and other equipment, which can withstand extreme conditions such as high temperature and high pressure.

 

Metallurgical field: used to manufacture mining equipment, smelting equipment, etc., with high wear resistance and corrosion resistance.

 

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