Carbon steel: ASTM/ASME A234 WPB\WPC
Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911
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 WPL 3-WPL 6
High performance: ASTM/ASME A860 WPHY 42-46-52-60-65-70
Bend diameter :R=1~10D
According to its radius of curvature points: elbows can be divided into long radius elbow and short radius elbow.
Long radius elbow refers to its radius of curvature is equal to 1.5 times the outer diameter of tube, R = 1.5 D;
Short radius elbow refers to its radius of curvature is equal to the pipe diameter, R = 1.0 D. To bend diameter (D, R for the radius of curvature).