Det Norske Veritas - Germanischer Lloyd

DNVGL  Manufacture of heat treated products - heat treatment workshop
 N DNVGL-CP-0351

Annotation

Scope and application

This programme is applicable for approval of manufacturers for:

heat treated products

surface hardened products

as referred in the Society’s rules and standards. For a description of general requirements, conditions and procedures related to the approval, please refer to DNVGL CP 0346 which shall be applied in combination with this programme. The corresponding class programmes for the specific products shall also apply.

The approval will typically cover:

an independent heat treatment company

a manufacturer (e.g. foundry) in-house heat treatment facility

a heat treatment sub-contractor

The corresponding requirements are given in App.B.

The programme is applicable for the approval of manufacturers for one or more of the heat treatments:

normalizing or normalizing + tempering

quenching1 and tempering

solution heat treatment without quenching

solution heat treatment with quenching1)

tempering (e.g. malleable cast iron)