S355J2 is a micro alloyed structural steel suitable for e.g. mechanical engineering applications. The steel posess a good weldability with max CEV =0.47 for all variants. The steel may be delivered with a controlled silicon content for good galvanazing properties. Below, a number of closely related variants with various impact strength are presented.
Variant SB9813 is delivered with a closely controlled C-content for predictable properties and with a CEV value of max 0.41.
Variant S355J2(M) is a M-treated variant
Variant S355K2 and S355L4 both show good Impact toughness
Variant 520M is a M-steel variant of S355J2
Variant 550M is a drawn or peeled version of S355J2
The basis for the concept is that non-metallic inclusions are modified and controlled with calcium treatment in a way to minimize tool wear and to maximize chip control in machining operations.
Our M-Steel treatment can be applied to any steel grade.
For further reading about our M-steel concept see our home page.
For additional Heat Treatment Data, please visit the Heat Treatment Guide
ASt 52, A52 FP, Q420q-D, 1501 Gr.224-460, A52 RBII, 1.0577, St52-3, SB9837 Grade32-36, SB9833