Performance and Application Value of SG295 Steel

SG295 is a steel grade under the Japanese JIS standard for gas cylinders, mainly used in the production of liquefied petroleum gas cylinders and other pressure vessels. It belongs to low-carbon steel with good plasticity and weldability, ensuring stability under pressure. SG295 is widely applied in cylinder manufacturing and related equipment due to its reliable performance and safety.

In terms of chemical composition, SG295 is primarily iron, with carbon content generally below 0.20%. Manganese is added to improve strength and toughness, while silicon enhances deoxidation. Phosphorus and sulfur are kept at low levels to minimize brittleness and welding cracks. This composition ensures SG295 meets pressure requirements while maintaining good forming and welding performance.

SG295 is commonly used for producing liquefied petroleum gas cylinders, industrial gas storage bottles, and other lightweight pressure vessels. It is also applied in medium and small pressure vessels such as compressed air tanks and industrial gas storage equipment. In these uses, SG295 is selected for its balance of stability and processability.