According to the production process, it can be divided into: welding elbow, stamping elbow, casting elbow, etc.
Divided by material: carbon steel, cast steel, alloy steel, stainless steel (304, 316, 310, 321, 301), copper, aluminum alloy, etc. (but all the products in the small wooden factory are pure forgings)
Manufacturing methods can be divided into: pushing, pressing, forging, casting, etc. (now they are generally pure forged)
304 stainless steel elbow can also be divided into equal diameter elbow and non equal diameter elbow. Equal diameter elbow is used to connect pipes with the same outer diameter, and non equal diameter elbow is used to connect pipes with different outer diameters.
Manufacturing standards include: national standard, electric standard, water standard, American Standard, German standard, Japanese standard, etc.
According to the radius of curvature: it can be divided into long radius elbow and short radius elbow. Long radius elbow refers to its radius of curvature equal to 1.5 times the outer diameter of the pipe, that is, r=1.5d. Short radius elbow means that its radius of curvature is equal to the outer diameter of the pipe, that is, r=1.0d. (D is the elbow diameter, R is the radius of curvature).
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