Stainless steel elbow various division methods

- May 20, 2019-

The stainless steel elbow is a kind of connecting pipe commonly used in pipe installation. It connects two pipes with the same or different nominal diameters to make the pipe turn at a certain angle. The nominal pressure is 1-1.6Mpa.


Classification

Stainless steel elbows are divided 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-316N-316Ti

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

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

High Performance Steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70

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


The division of stainless steel elbow manufacturing methods can be divided into push, press, forge, and casting.

Divided by manufacturing standards can be divided into national standard, electric standard, ship standard, chemical standard, water standard, American standard, German standard, Japanese standard, Russian standard and so on.

Stainless steel elbows are divided by their radius of curvature: they can be divided into long radius elbows and short radius elbows. The long radius elbow refers to the outer diameter of the tube whose radius of curvature is equal to 1.5 times, that is, R = 1.5D; the short radius elbow refers to its radius of curvature equal to the outer diameter of the tube, that is, R = 1.0D. (D is the elbow diameter and R is the radius of curvature).

If divided according to the pressure level: there are about seventeen kinds, which are the same as the American pipe standards: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, SCH100, Sch120, Sch140, Sch160, XXS; commonly used are STD and XS.

According to different shapes and uses, it can be divided into: grooved elbow, ferrule elbow, double bearing elbow, flange elbow, reaming elbow, dull elbow, inner and outer elbow, punching elbow, push Elbows, socket elbows, butt weld elbows, inner wire elbows, etc.