Construction steels are critical components in many applications, including civil engineering and vast industrial building works. All of our steels are compliant with international standards, and we frequently supply companies with high-grade steels that are utilized in offshore construction, shipbuilding and large-scale engineering projects.

This article will outline four of the different types of structural steel we commonly supply for construction jobs.

S460 High-Strength Structural Steel   

S460 construction steel has a high strength-to-weight ratio and is often used in high-rise buildings. The S460 can be easily welded as a result of its reduced carbon content, has high tensile strength and can withstand temperatures as low as -50oC.

The S460 material is available in two variations: S460NL and S460ML. The S460NL is manufactured with normalized material, whereas the S460ML is made via a thermo-mechanically controlled process (TMCP).

The S460 steel we offer is versatile and reliable, and can be produced in a range of sizes from 6mm to 80mm thick, up to three meters wide and up to 12 meters in length.

S355 Structural Steel and Plate

S355 is a structural grade steel that is often used in the construction and engineering industries. A large number of S355 steels are available at Masteel, but we can provide an overview of the S355JR, S355AR and S355J2/K2+N.

S355JR has a yield strength of at least 355N/mm2 and has been through the charpy impact test, which explains the JR allocation to the name as the test was carried out at 27J (Joules) at room temperature.

S355AR has the same yield strength as the S355JR, but the AR denotes it is sold in ‘as rolled condition’.

S355J2/K2+N is the same steel as S355JR but it is supplied in a normalized condition and underwent a Charpy test at 40J (Joules) at -20oC.
Any steels that are put through the Charpy impact or ‘V’ notch test will have the letters ‘J2’, ‘K2’, ‘JR’ or ‘JO’, which denotes their material toughness.

S275 Structural Grade Steel     

S275 is a low carbon steel that is frequently used in building bridges and multi-story buildings. It is also used in the oil and gas industry as well as in components required in vehicles and heavy equipment.
The minimum yield strength of S275 is 275N/mm2, it is suitable for welding and is used in a range of construction applications. The two options of the S275 steel are: S275JR, which has been subjected to the Charpy impact test at 27J(Joules) at room temperature, and the S275AR, which is supplied in ‘as rolled condition’.

S235 Structural Steel Plate

There are multiple variations of S235 available, but typically it is supplied as untreated or in normalized condition. S235 is commonly used to manufacture rolled products which are then used in steel structures. Not only are they reliably strong, but they are also suitable for welding. However, it is worth noting that the tensile strength of S235 wavers if temperatures exceed 600oC.

S235 is most frequently supplied as S235JR, as it has undergone the Chary impact test at 27J (Joules) at room temperature, and the S235AR, which is supplied in ‘as rolled condition’.

Masteel is one of the world’s most renowned suppliers of stainless steel, providing construction materials to companies in the oil, gas and chemical industries. If you would like to learn more about the construction steels we sup