We manufacture of butt weld pipe fittings to meet diverse material specification. The function of a elbow is to change direction or flow in a piping system. By default, there are 5 opportunities, the 45°, 90° and 180° elbows, all three in the "long radius" version, and in addition the 90° and 180° elbows both in the "short radius" version.
Dimensional Tolerances of Butt Weld Elbows - 45° & 90° - LR & 3D - ASME B16.9
| Nominal Pipe Size |
1/2 to 2½ |
3 to 3½ |
4 |
5 to 8 |
10 to 18 |
20 to 24 |
26 to 30 |
32 to 48 |
Outside Diameter
at Bevel (D) |
+ 1.6
- 0.8 |
1.6 |
1.6 |
+ 2.4
- 1.6 |
+ 4
- 3.2 |
+ 6.4
- 4.8 |
+ 6.4
- 4.8 |
+ 6.4
- 4.8 |
| Inside Diameter at End |
0.8 |
1.6 |
1.6 |
1.6 |
3.2 |
4.8 |
+ 6.4
- 4.8 |
+ 6.4
- 4.8 |
| Center-to-End LR (A/B) |
2 |
2 |
2 |
2 |
2 |
2 |
3 |
5 |
| Center-to-End 3D (A/B) |
3 |
3 |
3 |
3 |
3 |
3 |
6 |
6 |
| Wall Thickness (t) |
Not less than 87.5% of Nominal Wall Thickness |
Dimensional tolerances are in millimeters unless otherwise indicated and are equal ± except as noted.
Dimensional Tolerances of Butt Weld Elbows 180° LR and SR ASME B16.9
| Nominal Pipe Size |
1/2 to 2½ |
3 to 3½ |
4 |
5 to 8 |
10 to 18 |
20 to 24 |
Outside Diameter
at Bevel (D) |
+ 1.6
- 0.8 |
1.6 |
1.6 |
+ 2.4
- 1.6 |
+ 4
- 3.2 |
+ 6.4
- 4.8 |
| Inside Diameter at End |
0.8 |
1.6 |
1.6 |
1.6 |
3.2 |
4.8 |
| Center to Center (O) |
6 |
6 |
6 |
6 |
10 |
10 |
| Back to Face (K) |
6 |
6 |
6 |
6 |
6 |
6 |
| Wall Thickness (t) |
Not less than 87.5% of Nominal Wall Thickness |
Dimensional tolerances are in millimeters unless otherwise indicated and are equal ± except as noted.
Available Materials
Stainless Steel: ASTM A 312, A 213, A 249, A 269, A 358, A 240, A 276
Type: 202, 304, 304L, 304H, 316, 316L, 316Ti, 321, 321H, 317, 317L, 310, 310S, 409, 410, 420, 430 etc.
Carbon Steel: ASTM A 106, A 53, API A 5L Gr A, B, C, ASTM A 333, Gr 1 to 6 (IBR & NON IBR)
Alloy Stel: ASTM A 335, GR P1, P2, P5, P9, P11, P22, P91
Nickel Alloys: Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy 904, Titanium, Tungston, SIlver Nickel, Zirconium, Palladium, Vanadium etc.
Copper Alloys: Aluminium, Copper, Brass & Gunmetal
Buttweld Fittings: ASTM A 403, A182, A 234, A 105, A 420, A 350 & LF2 etc. (IBR & NON IBR)
Overview
