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Butt Weld 45 Degree Elbow

The Butt Weld 45 Degree Elbow is a pipe connector in the shape of a curved pipe section with a bending angle of 45°. It consists of a curved part and straight edge parts at both ends. The radius of curvature of the curved part is an important parameter, which is usually determined according to the nominal diameter of the pipe and the use requirements.

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The Butt Weld 45 Degree Elbow is a pipe connector in the shape of a curved pipe section with a bending angle of 45°. It consists of a curved part and straight edge parts at both ends. The radius of curvature of the curved part is an important parameter, which is usually determined according to the nominal diameter of the pipe and the use requirements.
The interface at both ends is a butt welding joint. The butt weld joint requires high processing accuracy to ensure that it can be accurately connected with the adjacent pipe or pipe fitting during welding. The edge of the interface usually needs to be chamfered, on the one hand to facilitate the welding operation and enable the weld to be better filled; on the other hand to remove defects such as burrs on the edge and improve the welding quality.

Specification of ASME B16.9 45 Degree Elbow

Size Range 1/2″- 80″ / DN15 – 2000
Thickness Schedule SCH 10, 20, 40, STD, XS, 80, 100, 120, 140, 160, XXS
Standard GB/T12459, GB/T13401, HG/T21635/21631, SH3408/3409, ANSI / ASME B16.9, MSS SP 43, JIS B2311/2312/2313, EN10253, DIN2605/2615/2616/2617, EN10253
Carbon Steel Grades ASTM A234 WPB/WPC, A420 WPL6, A860 WPHY 42 / 46 / 56 / 60 / 65
Alloy Steel Grades ASTM A234 WP11 / WP12 / WP 5 / WP9 / WP91 / WP92, 15CrMoG,

12Cr1MoVG, 12Cr5Mo, 1Cr5Mo, Cr9Mo, 10CrMo910, 12CrMo4-5

Stainless Steel Grades ASTM A403 WP304/304L/304H, 316/316L, 310S, 317, 347, 904L
Duplex Stainless Steel Grades ASTM A815 S32205, S31803, 32750, 32760

45 Degree Elbow Long Radius Dimension

45 Degree Elbow Drawing

DN NPS OD B SCH 40 WEIGHT
LR KG
15 1/2 21.3 16 0.04
20 3/4 26.7 19 0.06
25 1 33.4 22 0.08
32 1-1/4 42.2 25 0.14
40 1-1/2 48.3 29 0.20
50 2 60.3 35 0.36
65 2-1/2 73.0 44 0.71
80 3 88.9 51 1.11
90 3-1/2 101.6 57 1.56
100 4 114.3 64 2.11
125 5 141.3 79 3.56
150 6 168.3 95 5.6
200 8 219.1 127 11.4
250 10 273.0 159 20.0
300 12 323.8 190 31.5
350 14 355.6 222 43.6
400 16 406.4 254 65
450 18 457.0 286 92.5
500 20 508.0 318 121
550 22 559.0 343
600 24 610.0 381 201.5
650 26 660.0 406
700 28 711.0 438
750 30 762.0 470
800 32 813.0 502 361
850 34 864.0 533 409
900 36 914.0 565 499
950 38 965.0 600
1000 40 1016.0 632
1050 42 1067.0 660
1100 44 1118.0 695
1150 46 1168.0 727
1200 48 1219.0 759
1300 52 1321.0 821
1400 56 1422.0 883
1500 60 1524.0 947
1600 64 1626.0 1010
1700 68 1727.0 1073
1800 72 1829.0 1137
1900 76 1930.0 1199
2000 80 2032.0 1263

Application fields of butt weld 45 Degree elbows

Petrochemical Industry
In the process of petroleum refining and chemical production, butt-welded 45° elbows are widely used in various pipeline systems. For example, in crude oil pipelines, when the pipeline direction needs to be changed, butt weld 45 degree elbows can make the crude oil turn smoothly, reducing pressure loss and flushing of the pipeline.
In the pipeline system of the storage tank area and loading and unloading facilities of petroleum and chemical products, butt weld 45° elbows are also indispensable pipe fittings. In the inlet and outlet pipelines of the storage tank, the connecting pipelines of the loading and unloading arm, etc., butt weld 45° elbows can adapt to the layout requirements of the pipeline and ensure the safety and stability of the pipeline system during storage and loading and unloading.
Power Industry
In the thermal pipeline system of thermal power stations, butt weld 45° elbows are used to connect steam pipes, hot water pipes, etc. In the hot water heating pipeline system of thermal power plants, 45° elbows can make reasonable pipeline turns according to the laying route of the pipeline to improve the efficiency of the heating system.
In the cooling water pipeline system of power generation equipment, butt weld 45° elbows are also used. For example, in the stator cooling water pipeline of the generator, the butt weld 45 drgree elbow can make the cooling water circulate along the prescribed path, ensuring the cooling effect of the generator and preventing the generator from being damaged due to overheating.

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