Section 3 Design temperature
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Offshore Units, July 2022 - Part 4 Steel Unit Structures - Chapter 2 Materials - Section 3 Design temperature

Section 3 Design temperature

Parent topic: Chapter 2 Materials

3.1 General

3.1.1 The Minimum Design Temperature (MDT) is a reference temperature used as a criterion for the selection of the grade of steel to be used in the structure and is to be determined in accordance with Pt 3, Ch 1, 4 Materials.

3.1.2 The MDT is not to exceed the lowest service temperature of the steel as appropriate to the position in the structure.

3.1.3 A design temperature of 0°C is generally acceptable for determining the steel grades for structure which is normally underwater, see also Pt 4, Ch 2, 4.1 General 4.1.4.

3.1.4 For column-stabilised units of conventional design, the lower hulls need not normally be designed for a design temperature lower than 0°C.

3.1.5 The design temperature for internal structure of all units is to be separately defined, see the Rules for the Winterisation of Ships, July 2022.

3.1.6 Internal structures in way of permanently heated compartments need not normally be designed for temperatures lower than 0°C.

Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.