Det Norske Veritas - Germanischer Lloyd

DNVGL  Rolled steel products specially designed for container ships properties
 N DNVGL-CP-0348

Annotation

Scope and application

This programme is applicable for the approval of material manufacturers of:

extra high strength steel grades VL D47 and VL E47

steel grades with verified BCA properties

steel grades with verified CTOD properties of base material and CGHAZ (COD steels)

steel grades with simultaneously verified BCA and CTOD properties (BCACOD steels)

as referred in the Society's rules and standards, e.g. RU SHIP Pt.2 Ch.2 Sec.2 and RU SHIP Pt.2 Ch.4 Sec.5.

This programme shall always be used in combination with the approval programs DNVGL CP 0346 and DNVGL CP 0243. It is applicable for the approval of manufacturers (AoM) of products given in Table 1.

The product(s) used for approval testing (see Sec.3) will place limitations on the range of approval. The approval will be limited to:

each steel type group or material grade as indicated in App.A

the corresponding application areas as given in Table 1

manufacturing process including rolling parameters and heat treatment

for BCA, COD and BCACOD grades; the manufacturer specification for the chemical composition, manufacturing process and production control, see Sec.2.