45 degree elbow

The 45 degree elbow is bent with a complete set of bending equipment, which is divided into two processes: cold simmer and hot push. No matter what kind of machine equipment and pipelines, most of them use elbow pipes, mainly for oil, gas, infusion, engineering bridge construction, etc

elbow classification

1. Classification by material:

carbon steel: ASTM/ASME A234 WPB, WPC

alloy: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP911, 15Mo3 15CrMoV 35CrMoV

Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N

ASTM/ASME A403 WP 316-316L-316H-316LN-316Ti

ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H

Low temperature steel: ASTM/ASME A402 WPL3-WPL 6

Performance stable steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70

Cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon asphalt, PVC, PPR RFPP (reinforced polypropylene), etc

Aluminum alloy 30036061, copper, red copper, brass

2. According to the production method, it can be divided into pushing, pressing, forging, casting, etc

3. The manufacturing standards can be divided into national standards, electrical standards, ship standards, chemical standards, water standards, American standards, German standards, Japanese standards, Russian standards, etc

4. It can be divided into long radius elbow and short radius elbow according to its curvature radius. Long radius elbow refers to the outer diameter of the pipe whose curvature radius is equal to 1.5 times, 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)

5. According to the pressure grade, there are about 17 types, which are the same as the American pipe standards, including Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80、SCH100、Sch120、Sch140、Sch160、XXS; STD and XS are commonly used