S355JR, S355AR & S355J2/K2+N

S355 – a structural grade steel with a minimum yield strength of 355 N/mm².

Commonly used in the engineering and construction industry, S355 offers high yield and tensile strength and is supplied with a variety of treatments and test options making it a highly usable steel in your construction project.

Masteel UK Limited can supply S355 from stock to customers on a worldwide basis.

About S355 Common Steels

A structural grade (S) with at minimum yield strength of 355 N/mm²m, the JR designation confirms that the steel has undergone longitudinal Chary V-Notch impact testing at 27J (Joules) at room temperature. Other Charpy designations include JO, J2 and K2.

A structural grade (S) with the same minimum yield strength of 355 N/mm²m, but supplied in an ‘as rolled condition’.

As S355JR but Charpy tested at 40J (Joules) at -20°C and supplied in the normalised condition.

The above steels represent only a small example of the quality range of S355 steels available for supply from Masteel UK Limited.


Chemical composition of S355