Dl-MC 355 is a weldable fine-grained thermomechanically rolled steel for structural design. Mechanical properties in the delivery condition are given in Table 2. It is possible to order Dl-MC 355 in the whole thickness range up to 140 mm (5.5 in.) with constant minimum yield strength of 355 MPa (51 ksi), as well as a constant tensile strength range of 470-630 MPa (68-91 ksi). Impact values are shown in Table 3. The specified minimum value is the average of three tests. One individual value may be below the minimum average value specified, provided that it is not less than 70% of that value. Subsize specimens are admitted for plate thickness < 12 mm (< 0.5 in.); the minimum specimen width is 5 mm (0.2 in.). The minimum impact energy will be decreased proportionally.
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