JIS G 3461:2019规定了锅炉水管、烟管、过热器管和空气预热器管等用于管内外换热的碳钢管（以下简称管）以及化学和石油工业中使用的热交换器管、冷凝器管和催化器管等的要求。不适用于燃烧式加热器用钢管和低温用钢制热交换器管。

JIS G 3461:2019 specifies requirements for the carbon steel tubes (hereafter referred to as tubes) used for exchanging heat between the inside and outside of the tube, such as water tubes, smoke tubes, superheater tubes and air preheater tubes, etc. of boilers, and heat exchanger tubes, condenser tubes and catalyser tubes, etc. used in chemical and petroleum industries. It is not applicable to the steel tubes for fired heater and steel heat exchanger tubes for low temperature service.