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What Standard for Butt Weld 90Degree 3D Elbow
Butt weld is the connection type at the end of the elbows, there are three main types which are butt weld, socket weld and threaded. 90 degree is the angel of the elbow, usually we have two types, 45 degree and 90 degree, if the connection part need to be in other specific angels like 180 degree or 60 degree, usually we call them bend, bot elbow. And the last one, 3D stand for the bend radius of the elbow, it means the radius is three times of the pipes outer diameter.
As the conclusion, butt weld 90 degree 3D elbow is a elbow fittings whose shape in 90degree and its bend radius is OD*3 with a connection of butt weld.
Materials of Butt Weld 90Degree 3D Elbow
Due to the connection type of butt weld, the material of the butt weld 90degree 3D elbow must be in metal materials. Under the manufacturing standard ASME B16.9, the material can be divided into four main types, carbon steel, pipeline steel, alloy steel and stainless steel. Below are materials applied in butt weld fittings.
Carbon Steel Grades | ASTM A234 WPB/WPC, A420 WPL6 |
Pipeline Steel Grades | A860 WPHY 42 / 46 / 56 / 60 / 65 |
Alloy Steel Grades | ASTM A234 WP11 / WP12 / WP 5 / WP9 / WP91 / WP92 |
Stainless Steel Grades | ASTM A403 WP304/304L/304H, 316/316L, 310S, 317, 347, 904L |
Duplex Stainless Steel Grades | ASTM A815 S32205, S31803, 32750, 32760 |
Manufacturing Standard for 3D Pipe Elbow
There a different specific standard toward material, inspection, dimension, end details and other parts of the 3D pipe elbow. Below are the standard related to the whole manufacturing process of 3D pipe elbows.
ASME Standard | ASME/ANSI B16.9, ASME/ANSI B16.28, MSS-SP-43 |
DIN Standard | DIN28011, DIN2617, DIN2616, DIN2615, DIN2605 |
EN Standard | EN10253-2, EN10253-1 |
ASME B16.25 | Buttwelding Ends |
ASME B16.9 | Factory-Made Wrought Fittings Buttwelding |
ASME B16.28 | Wrought Steel 3D Elbow and Buttwelding Returns |
ASTM A403 – ASME SA403 | Standard Specification for Wrought Austenitic SS Piping Fitting |
MSS SP-43 | Wrought & Fabricated Butt-Welding Fitting for Low Pressure, Corrosion Resistant Applications |
Dimensions and Tolerance of 3D Pipe Elbows
NPS | O.D (Outside Diameter) | 90 degrees 3D | 45 degrees 3D |
1/4 | 21.3 | – | – |
1/2 | 26.7 | 57 | 24 |
1 | 33.4 | 76 | 31 |
1¼ | 42.2 | 95 | 39 |
1½ | 48.3 | 114 | 47 |
2 | 60.3 | 152 | 63 |
2½ | 73 | 190 | 79 |
3 | 88.9 | 229 | 95 |
3½ | 101.6 | 267 | 111 |
4 | 114.3 | 305 | 127 |
5 | 141.3 | 381 | 157 |
6 | 168.3 | 457 | 189 |
8 | 219.1 | 610 | 252 |
10 | 273 | 762 | 316 |
12 | 323.8 | 914 | 378 |
14 | 355.6 | 1067 | 441 |
16 | 406.4 | 1219 | 505 |
18 | 457 | 1372 | 568 |
20 | 508 | 1524 | 632 |
22 | 559 | 1676 | 694 |
24 | 610 | 1829 | 757 |
26 | 660 | 1981 | 821 |
28 | 711 | 2134 | 883 |
30 | 762 | 2286 | 964 |
32 | 813 | 2438 | 1010 |
34 | 864 | 2591 | 1073 |
36 | 914 | 2743 | 1135 |
38 | 965 | 2896 | 1200 |
40 | 1016 | 3048 | 1264 |
42 | 1067 | 3200 | 1326 |
44 | 1118 | 3353 | 1389 |
46 | 1168 | 3505 | 1453 |
48 | 1219 | 3658 | 1516 |
Tolerance of dimensions
Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
Outside Diameter | 1.6 | 1.6 | 1.6 | 2.4 |
at Bevel (D) | – 0.8 | – 1.6 | ||
Inside Diameter at End | 0.8 | 1.6 | 1.6 | 1.6 |
Center to End LR (A/B) | 2 | 2 | 2 | 2 |
Center to End 3D (A/B) | 3 | 3 | 3 | 3 |
Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
Outside Diameter | 4 | 6.4 | 6.4 | 6.4 |
– 3.2 | – 4.8 | – 4.8 | – 4.8 | |
Inside Diameter at End | 3.2 | 4.8 | 6.4 | 6.4 |
– 4.8 | – 4.8 | |||
Center to End LR (A/B) | 2 | 2 | 3 | 5 |
Center to End 3D (A/B) | 3 | 3 | 6 | 6 |
Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
What Standard for Butt Weld 90Degree 3D Elbow
Butt weld is the connection type at the end of the elbows, there are three main types which are butt weld, socket weld and threaded. 90 degree is the angel of the elbow, usually we have two types, 45 degree and 90 degree, if the connection part need to be in other specific angels like 180 degree or 60 degree, usually we call them bend, bot elbow. And the last one, 3D stand for the bend radius of the elbow, it means the radius is three times of the pipes outer diameter.
As the conclusion, butt weld 90 degree 3D elbow is a elbow fittings whose shape in 90degree and its bend radius is OD*3 with a connection of butt weld.
Materials of Butt Weld 90Degree 3D Elbow
Due to the connection type of butt weld, the material of the butt weld 90degree 3D elbow must be in metal materials. Under the manufacturing standard ASME B16.9, the material can be divided into four main types, carbon steel, pipeline steel, alloy steel and stainless steel. Below are materials applied in butt weld fittings.
Carbon Steel Grades | ASTM A234 WPB/WPC, A420 WPL6 |
Pipeline Steel Grades | A860 WPHY 42 / 46 / 56 / 60 / 65 |
Alloy Steel Grades | ASTM A234 WP11 / WP12 / WP 5 / WP9 / WP91 / WP92 |
Stainless Steel Grades | ASTM A403 WP304/304L/304H, 316/316L, 310S, 317, 347, 904L |
Duplex Stainless Steel Grades | ASTM A815 S32205, S31803, 32750, 32760 |
Manufacturing Standard for 3D Pipe Elbow
There a different specific standard toward material, inspection, dimension, end details and other parts of the 3D pipe elbow. Below are the standard related to the whole manufacturing process of 3D pipe elbows.
ASME Standard | ASME/ANSI B16.9, ASME/ANSI B16.28, MSS-SP-43 |
DIN Standard | DIN28011, DIN2617, DIN2616, DIN2615, DIN2605 |
EN Standard | EN10253-2, EN10253-1 |
ASME B16.25 | Buttwelding Ends |
ASME B16.9 | Factory-Made Wrought Fittings Buttwelding |
ASME B16.28 | Wrought Steel 3D Elbow and Buttwelding Returns |
ASTM A403 – ASME SA403 | Standard Specification for Wrought Austenitic SS Piping Fitting |
MSS SP-43 | Wrought & Fabricated Butt-Welding Fitting for Low Pressure, Corrosion Resistant Applications |
Dimensions and Tolerance of 3D Pipe Elbows
NPS | O.D (Outside Diameter) | 90 degrees 3D | 45 degrees 3D |
1/4 | 21.3 | – | – |
1/2 | 26.7 | 57 | 24 |
1 | 33.4 | 76 | 31 |
1¼ | 42.2 | 95 | 39 |
1½ | 48.3 | 114 | 47 |
2 | 60.3 | 152 | 63 |
2½ | 73 | 190 | 79 |
3 | 88.9 | 229 | 95 |
3½ | 101.6 | 267 | 111 |
4 | 114.3 | 305 | 127 |
5 | 141.3 | 381 | 157 |
6 | 168.3 | 457 | 189 |
8 | 219.1 | 610 | 252 |
10 | 273 | 762 | 316 |
12 | 323.8 | 914 | 378 |
14 | 355.6 | 1067 | 441 |
16 | 406.4 | 1219 | 505 |
18 | 457 | 1372 | 568 |
20 | 508 | 1524 | 632 |
22 | 559 | 1676 | 694 |
24 | 610 | 1829 | 757 |
26 | 660 | 1981 | 821 |
28 | 711 | 2134 | 883 |
30 | 762 | 2286 | 964 |
32 | 813 | 2438 | 1010 |
34 | 864 | 2591 | 1073 |
36 | 914 | 2743 | 1135 |
38 | 965 | 2896 | 1200 |
40 | 1016 | 3048 | 1264 |
42 | 1067 | 3200 | 1326 |
44 | 1118 | 3353 | 1389 |
46 | 1168 | 3505 | 1453 |
48 | 1219 | 3658 | 1516 |
Tolerance of dimensions
Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
Outside Diameter | 1.6 | 1.6 | 1.6 | 2.4 |
at Bevel (D) | – 0.8 | – 1.6 | ||
Inside Diameter at End | 0.8 | 1.6 | 1.6 | 1.6 |
Center to End LR (A/B) | 2 | 2 | 2 | 2 |
Center to End 3D (A/B) | 3 | 3 | 3 | 3 |
Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
Outside Diameter | 4 | 6.4 | 6.4 | 6.4 |
– 3.2 | – 4.8 | – 4.8 | – 4.8 | |
Inside Diameter at End | 3.2 | 4.8 | 6.4 | 6.4 |
– 4.8 | – 4.8 | |||
Center to End LR (A/B) | 2 | 2 | 3 | 5 |
Center to End 3D (A/B) | 3 | 3 | 6 | 6 |
Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
