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ASTM A182 Socket Weld Elbow

ASTM A182 socket weld elbow has a compact structure and is easy to install and connect. It has various sizes, including different diameters, wall thicknesses, and curvature radii to meet the needs of different piping systems.

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ASTM A182 socket weld elbow has a compact structure and is easy to install and connect. It has various sizes, including different diameters, wall thicknesses, and curvature radii to meet the needs of different piping systems.

The curvature radius is one of the important parameters of the socket weld elbow. According to the curvature radius of the elbow, it can be divided into long radius elbow and short radius elbow. The curvature radius of the long radius elbow is usually 1.5 times the outer diameter of the pipe, while the curvature radius of the short radius elbow is equal to the outer diameter of the pipe.

ASTM A182 is a standard developed by the American Society for Testing and Materials (ASTM) to regulate the production and quality requirements of forged pipe fittings. This standard covers a variety of grades of forged or rolled alloy steel and stainless steel pipe flanges, forged pipe fittings and valves. Socket weld elbows, as a type of pipe fitting, also follow the ASTM A182 standard.

 

Specification of Socket Weld Elbow

 

Shape

Straight and Reducing Fittings

Size Range 1/8″ – 4″ / DN6 – DN100
Pressure Rating Class 3000lbs, 6000lbs, 9000lbs
Standard ASME B16.11, BS3799
Alloy Steel ASTM A182 F11 / F12 / F5 / F9 / F91 / F92 / F22
Stainless Steel ASTM A182 F304/304L/304H, F316/316L, F310S, F317, F347, F904L

 

ASME B16.11 Socket Weld Elbow Dimensions 

Socket Weld Elbow Drawing

 

DN NPS B G C
3000 6000 9000 3000 6000 9000
ave min ave min ave min
6  1/8 10.9 2.41 3.15 3.18 3.18 3.96 3.43
8  1/4 14.3 3.02 3.68 3.78 3.3 4.6 4.01
10  3/8 17.7 3.2 4.01 4.01 3.5 5.03 4.37
15  1/2 21.9 3.73 4.78 7.47 4.67 4.09 5.97 5.18 9.53 8.18
20  3/4 27.3 3.91 5.56 7.82 4.9 4.27 6.96 6.04 9.78 8.56
25 1 34 4.55 6.35 9.09 5.69 4.98 7.92 6.93 11.38 9.96
32 1 1/4 42.8 4.85 6.35 9.7 6.07 5.28 7.92 6.93 12.14 10.62
40 1 1/2 48.9 5.08 7.14 10.15 6.35 5.54 8.92 7.8 12.7 11.12
50 2 61.2 5.54 8.74 11.07 6.93 6.04 10.92 9.5 13.84 12.12
65 2 1/2 73.9 7.01 8.16 7.62
80 3 89.9 7.62 9.52 8.3
100 4 115.5 8.56 10.69 9.35

 

Manufacturing Process

 

Forging: First, the raw material is heated to an appropriate temperature, and then forged by forging equipment to form the approximate shape of the elbow. The forging process can improve the organizational structure of the material and increase its strength and toughness.
Machining: The forged blank is machined, including turning, drilling, milling and other processes to achieve precise size and surface quality requirements. For example, turning can ensure that the inner diameter and depth of the socket meet the standard requirements and ensure the matching accuracy with the pipe.
Heat Treatment: According to the material and use requirements, the machined socket elbow is subjected to appropriate heat treatment, such as solution treatment, annealing, etc., to eliminate internal stress and improve the performance of the material.
Surface Treatment: Finally, the socket elbow is subjected to surface treatment, such as pickling, passivation, etc., to improve its corrosion resistance and surface finish.
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