American standard 304 stainless steel pipe performance indicators
The floor drain is an important interface connecting the drainage pipe system with the indoor floor. As an important part of the drainage system in the house, it is very important for the odor control in the bathroom. We mainly provide different types of stainless steel floor drains, which are anti-corrosion durable and fast drainage, and also have a fashionable appearance, suitable for various styles of bathrooms.
Steel pipes are indispensable materials for various conventional weapons, barrels and barrels of steel. Steel pipes can be divided into pipes and fittings according to the shape of the cross-sectional area. Roll to the automatic pipe mill. Finally, the uniform machine is wall thick and sizing in the sizing machine to meet the specifications. The use of continuous tube mills to produce hot rolled seamless steel tubes is more advanced. The mechanical properties of steel are an important indicator of the end-use properties (mechanical properties) of steel, the chemical composition and the 304 stainless steel tube, which depends on the steel heat treatment system.
In the steel pipe standard, tensile properties (tensile strength, yield strength, elongation and yield point), hardness, toughness, and high and low temperature properties of the user are specified according to different requirements. The yielding phenomenon of the metal material, the force of the sample does not increase during the stretching process (constant) can still continue to extend the stress yield point, said. In the case of force, it should be distinguished by a lower yield point. The yield point is N / mm square unit (MPa).
The ability of a metal material to resist the surface of a hard object is called hardness. According to different test methods and application range, it can be divided into Brinell hardness, Vickers hardness, Rockwell hardness, hardness, microhardness and hardness. Commonly used pipes are Brinell hardness, Rockwell, and Vickers III. As the steel ball or carbide ball has a certain diameter, the test force (F) specifies the pressure surface to the style, the test force is removed after the hold time, and the diameter of the sample surface is measured (L).
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