![]() API 2H Grade 50 ASTM A633 PVQ Steel Plate ASTM A516/ ASME SA516. Its full name is pressure nominal, the unit is MPa. AR400 Flat Bars ASTM A514 ASTM A829 AISI 4130/AISI 4140 Marine & Offshore Steel. In the valve piping system, we can also see another parameter: PN, which is the nominal pressure. From the weight of 1 kg acting on an area of 1 cm², its value is exactly equal to about 10⁵ Pa=1bar, which means that what we call 1 kg (pressure) = 1 bar. The kilogram in general pressure units is an acronym. Then comes the introduction of Kg (kilogram). Psi and bar are used more often, and MPa is rarely used. It seems very complicated, but in fact, the conversion in daily life is generally between psi and bar, and between bar and MPa. Psi means "pound per square inch", which means 1 pound of force acts on an area of 1 square inch. The metric units we usually use are KPa, MPa, and bar. The unit of pressure is Pascal, which is "Pa", 1 Pa is equal to 1 N of force acting on an area of 1 square meter, that is, 1Pa=1N/m². Metric Units: KPa, MPa, Barįirst, we must realize that pressure does not force, the unit of pressure is N, and pressure refers to the vertical force on the unit area of an object. Next, I will explain the conversion method of pressure units KPa, MPa, bar, psi, and Kg in detail for you. Different countries and regions use different units, so in international trade, it is very important to convert the two to achieve unity. Pressure units are divided into metric units and imperial units. Among them, the pressure unit is essential, and there will be relevant descriptions in the design, application, and product characteristics. Using the simple formulas below, you can easily convert psi to bar. Valve and pipe fitting systems have many important parameters. For example, to convert 50 psi to bar, you can use the following formula: bar psi 0.0689475729.
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