Japan Pressure Vessel Forging Steel Number
Japan provides a variety of steel grades suitable for the manufacture of pressure vessels. The grades are typically identified by Japanese Industrial Standards (JIS) number. JIS numbers are used throughout the metals industry in Japan. The JIS symbols used to designate various steel grades for pressure vessels include SPV, when the material is designed for a pressure vessel that is intended for use at temperatures of no less than -10°C and no greater than 300°C; and SFV, when the material is designed for a pressure vessel that is used in locations with a temperature lower than -10°C.
Among the more common steel grades used to make pressure vessels in Japan are: SPV235, SPV315, SPV355 and SFV440. These are carbon-steel grades used to make pressure vessels in Japan. The SPV series is used for low-temperature applications, while the SFV series is used for higher-temperature applications. The number following the prefix indicates the amount of tensile strength or yield strength for the material, with higher numbers indicating higher strengths. Other varieties of carbon steel can also be used to manufacture pressure vessels in Japan. For example, the SCM series is composed of high-strength low-alloy steel and is suitable for use in high-pressure applications.
There are several stainless steel grades used to make pressure vessels in Japan. The most widely used grade is SUS304, which is a versatile, low-cost stainless steel grade with good strength and corrosion resistance. The JIS G3444 series can also be used for pressure vessels in Japan, and these steels generally consist of austenitic stainless steel, ferritic stainless steel, and martensitic stainless steel. Ferritic steels with high strength and excellent corrosion resistance are also used to make pressure vessels in Japan, such as the UF series.
Wear resistant steel is sometimes used to make pressure vessels in Japan. The grades include the HARDOX series, which is composed of martensitic steel with a wear-resistant surface, and the SWEBOR series, which is composed of martensitic steel with high strength and minimum wear properties.
The above are some of the commonly used steel grades for pressure vessels in Japan. For specific selection and application of steels for pressure vessels, it is important to consult a specialist in metal alloys for recommendation of the most suitable material for the application.
