180 Degree Elbow
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Ongoing, First published Nov 13, 2019
Product description
The connection form of stainless steel 180 degree steel pipe elbow     is butt welding elbow and steel pipe directly. According to its curvature radius, butt welding 180 degree elbow can be divided into long radius and short radius. Pressure grade is divided into about 17 types, which are the same as American pipe standard. The most commonly used are STD , SCH10, and SCH40. According to material, they are carbon steel, alloy steel and stainless steel.

Elbow(LR/SR  180°)
180 Degree Elbow Forming Type:
Mandrel-forming (so it will not reduce the wall thickness, extrusion moulding, pressing, colding working, machining, hot -bending, welded, heat treatment.

180 Degree Elbow Size/Dimensions:
seamless fittings 1/2"-32", welded fittings 1/2"-120"
45 Degree Elbow Wall Thickness: SCH5S, SCH10S, SCH10, SCH20, SCH30, SCH40S, STD, SCH40, SCH60, SCH80S, XS, SCH80, SCH120, SCH140, SCH160, XXS
45 Degree Elbow Bending Radius: R=1.0D, 1.5D, 2D, 3D, 5D, 8D, 10D....

180 Degree Elbow Standard:
GB 12459, GB/T 13401, SH3408, SH3409, ASME/ANSI B16.9, JIS B 2311/2220, DIN2617/2616/2615, GOST 1737

180 Degree Pipe Fitting Material
Stainless Steel: 
OCr18Ni9, 0Cr18Ni9Ti, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, 00Cr19Ni10, 00Cr17Ni14Mo2, 
ASTM A403-WP304, WP304L, WP304/304L, WP304H, WP316, WP316L, WP316/316L, 
WP321, WP321H, WP347, WP347H

HOW TO CALCULATE RADIUS OF STAINLESS STEEL ELBOW?
I have my own unique views on the calculation formula of stainless steel elbow size. I hope you can learn more from the following experience.

1. 1.5 times the elbow center height = diameter *1.524, which is actually the diameter * multiple. Round the number after the decimal point of the result to an integer. For example, the diameter of 219 is 200, the center height is 200*1.524=304.8, and take 305. The diameter of 114 is 100, the height of the center is 100*1.524=152.4, take 152.
http://www.sstubecn.com/butt-weld-fittings/180-degree-elbow.html
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