本文件描述了用于船上液化天然气储罐的高锰（Mn）奥氏体钢板的规格。 高锰奥氏体钢的规格也可以考虑用于液化天然气供应/终端的液货舱和工艺压力容器的设计和制造以及燃料和交易气体的运输。 本文件主要适用于使用高锰奥氏体钢的容积小于约30 000 m3的液化天然气储罐的规范。 板的厚度限制在6mm至40mm之间。

This document describes the specification of high manganese (Mn) austenitic steel plates to be used for LNG tanks on board ships. The specification of high manganese austenitic steel can be also considered for design and manufacture of cargo tanks and process pressure vessels of LNG supply/terminal and transportation of fuels and traded gases. This document is primarily applicable for the specification of LNG tanks below volumetric capacity of approximately 30 000 m³ using high manganese austenitic steel. The thickness of plates is limited to between 6 mm to 40 mm.