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Home / Products / Butt-Welding Fittings / ANSI/ASME B16.9 90° Short Radius Elbow
Pipe elbow fittings is a very important pipe fitting. When we talk about a pipe elbow, it means a length of pipe with a sharp bend in it. Pipe elbows are fitting accessories which are used widely in various industrial sectors in pipe fitting. A pipe elbow is frequently used in pressurized applications and is available in various shapes and sizes for use in different applications. A pipe elbow is a fitting installed between two lengths of pipe or tube allowing a change of direction, usually in the 900 or 450 direction.
ANSI/ASME B16.9 90° Short Radius Elbow
| Standards: |
ANSI - B 16.9
ASTM A403 - ASME SA403 - 'Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings'
API 590-605
ASME B16.9 - 'Factory-Made Wrought Buttwelding Fittings''
ASME B16.25 - 'Buttwelding Ends'
ASME B16.28 - 'Wrought Steel Buttwelding Short Radius Elbows and Returns'
MSS SP-43 - 'Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications' |
| Schedule: |
Sch 5 TO Sch XXS. |
| Sizes: |
Diameters - from 21,3 to 711 mm.
Wall Thickness - from 2 to 40 mm. |
| Materials: |
Monel, Nickel, Inconel, Hastalloy, Titanium, Tantalum, Stainless Steel, Alloy Steel, Carbon Steel, Cupro-Nickel 90/10 & 70/30
Stainless Steel ASME / ASTM SA / A403 SA / A 774 WP-S, WP-W, WP-WX, 304, 304L, 316, 316L, 304/304L, 316/316L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404 |
| Type: |
Butt Weld (BW) |
| Thickness: |
Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS and etc. |
| Dimension: |
ANSI B16.9, ANSI B16.28, MSS-SP-43 Type A, MSS-SP-43 Type B, JIS B2312, JIS B2313 |
Dimensions
Dimensions Butt Weld Elbows 90° - SR ASME B16.9
| NPS |
O.D.
D |
Center-to-End
A |
| 1 |
33.4 |
25 |
| 1¼ |
42.2 |
32 |
| 1½ |
48.3 |
38 |
| 2 |
60.3 |
51 |
| 2½ |
73 |
64 |
| 3 |
88.9 |
76 |
| 3½ |
101.6 |
89 |
| NPS |
O.D.
D |
Center-to-End
A |
 |
 |
| NPS |
O.D.
D |
Center-to-End
A |
| 4 |
114.3 |
102 |
| 5 |
141.3 |
127 |
| 6 |
168.3 |
152 |
| 8 |
219.1 |
203 |
| 10 |
273 |
254 |
| 12 |
323.8 |
305 |
| 14 |
355.6 |
356 |
| 16 |
406.4 |
406 |
| 18 |
457 |
457 |
| 20 |
508 |
508 |
| 22 |
559 |
559 |
| 24 |
610 |
610 |
| NPS |
O.D.
D |
Center-to-End
A |
Dimensions are in millimeters unless otherwise indicated. Wall thickness (t) must be specified by customer.
Dimensional Tolerances of Butt Weld Elbows Short Radius 90° 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 (A) |
2 |
2 |
2 |
2 |
2 |
2 |
3 |
5 |
| 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.
Note:
- MSS SP-43 only covers stainless steel buttweld fittings made for use with Schedule 5S and 10S pipe and Stub Ends suitable for use with Schedule 40S pipes.
- The dimensions and dimensional tolerances defined in MSS SP-43 are substantially the same as those in ASME B16.9 specifications from NPS 1/2 - NPS 24. Except with regard to the outside diameter at the bevel.
ELBOWS - Ansi 16.9 tolerances
| DIMENSIONAL TOLERANCES - ELBOWS |
| For all fittings |
Elbows 90/45 deg |
180° Returns |
| Nominal Pipe Size (NPS) |
Outside Ø
at Bevel |
Inside Ø
at End |
Wall Thickness
t / t1 |
Center to End Dim. A-B-C-M |
Center to Center Dim.
O |
Back to Face Dim.
K |
Align- ment of Ends
U |
| 1/2 a 2 1/2 |
1 |
0,8 |
Not |
2 |
7 |
7 |
1 |
| 3 a 3 1/2 |
1 |
1,6 |
less |
2 |
7 |
7 |
1 |
| 4 |
+2 -1 |
1,6 |
than |
2 |
7 |
7 |
1 |
| 5 a 6 |
+3 -1 |
1,6 |
87,50% |
2 |
7 |
7 |
1 |
| 8 |
2 |
1,6 |
of nominal |
2 |
7 |
7 |
1 |
| 10 |
+4 -3 |
3,2 |
tickness |
2 |
7 |
7 |
2 |
| 12 a 18 |
+4 -3 |
3,2 |
|
3 |
10 |
7 |
2 |
| 20 a 24 |
+6 -5 |
4,8 |
|
3 |
10 |
7 |
2 |
| 26 a 30 |
+7 -5 |
4,8 |
|
3 |
..... |
..... |
..... |
| 32 a 48 |
+7 -5 |
4,8 |
|
5 |
..... |
..... |
..... |
| Angularity Tolerances |
| ND |
Max off angle |
Max off plane |
| Q |
P |
| 1/2 a 4 |
1 |
2 |
| 5 a 8 |
2 |
4 |
| 10 a 12 |
3 |
5 |
| 14 a 16 |
3 |
7 |
| 18 a 24 |
4 |
10 |
| 26 a 30 |
5 |
10 |
| 32 a 42 |
5 |
13 |
| 44 a 48 |
5 |
20 |
ELBOWS - Weights
| WEIGHTS OF FITTINGS |
NPS
inches |
ELBOWS
LR 90° |
ELBOWS
SR 90° |
Sch.
5S |
Sch.
10S |
Sch.
40S |
Sch.
80S |
Sch.
5S |
Sch.
10S |
Sch.
40S |
Sch.
80S |
| 1/2 |
0.05 |
0.06 |
0.08 |
0.10 |
0.03 |
0.04 |
0.05 |
0.07 |
| 3/4 |
0.06 |
0.07 |
0.09 |
0.11 |
0.04 |
0.05 |
0.06 |
0.07 |
| 1 |
0.09 |
0.15 |
0.18 |
0.20 |
0.06 |
0.10 |
0.12 |
0.13 |
| 1 1/4 |
0.13 |
0.20 |
0.25 |
0.35 |
0.09 |
0.13 |
0.17 |
0.12 |
| 1 1/2 |
0.18 |
0.30 |
0.40 |
0.50 |
0.12 |
0.20 |
0.27 |
0.33 |
| 2 |
0.30 |
0.50 |
0.70 |
0.90 |
0.20 |
0.33 |
0.47 |
0.60 |
| 2 1/2 |
0.60 |
0.85 |
1.35 |
1.80 |
0.40 |
0.60 |
0.90 |
1.20 |
| 3 |
0.90 |
1.30 |
2.00 |
2.90 |
0.60 |
0.90 |
1.35 |
1.90 |
| 4 |
1.40 |
2.00 |
4.00 |
5.90 |
0.90 |
1.35 |
2.65 |
3.90 |
| 5 |
2.90 |
3.60 |
6.50 |
9.70 |
1.95 |
2.40 |
4.35 |
6.50 |
| 6 |
4.00 |
5.00 |
10.5 |
16.0 |
2.70 |
3.35 |
7.00 |
10.5 |
| 8 |
7.40 |
10.0 |
21.5 |
33.5 |
4.90 |
6.70 |
14.5 |
22.5 |
| 10 |
13.6 |
16.8 |
38.5 |
52.5 |
9.10 |
11.2 |
25.6 |
35.0 |
| 12 |
23.4 |
27.0 |
59.0 |
79.0 |
15.6 |
18.0 |
39.5 |
53.0 |
| 14 |
29.0 |
35.0 |
70.0 |
94.0 |
19.3 |
23.5 |
47.0 |
63.0 |
| 16 |
41.3 |
47.0 |
95.0 |
125 |
27.5 |
31.5 |
63.5 |
84.0 |
| 18 |
51.8 |
59.0 |
120 |
158 |
34.5 |
39.5 |
80.0 |
105 |
| 20 |
73.0 |
85.0 |
146 |
194 |
49.0 |
57.0 |
98.0 |
129 |
| 24 |
122 |
140 |
210 |
282 |
82.0 |
94.0 |
140 |
188 |
| Approximate weights in kg, density 8 kg/dm3 |
ELBOWS - End welding bevels
Main Export Market
- Eastern Europe
- North America
- Mid East/Africa
- Central/South America
- Asia
- Western Europe
- Australasia
- UAE
Sales Locations
U.A.E,
Oman,
Saudi Arabia,
Qatar,
Bahrain,
Egypt,
Turkey
Singapore,
Thailand,
Malaysia
Indonesia
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