
Short radius elbows, as their name suggests, are more compact in design. These fittings have a bend radius equal to the pipe diameter, making them ideal for applications where space is limited. Unlike long radius elbows, which provide a smoother flow, short radius elbows create sharper turns, making them suitable for low-pressure systems and tight spaces.
Table of contents
- SR Elbow Specification
- Short Radius 90 Degree Elbow Dimensions
- 45 Degree SR Elbow Dimensions
- ASME B16.9 Short Radius Elbow Dimensions Inches
- Short Radius Elbow Formula
- SS Short Radius Elbow Applications
- Long Radius VS Short Radius Elbow
- 90 Deg Short Radius Elbow Weight Chart
- Types of Short Radius Elbow
- Inconel Buttweld SR Elbow Tolerance
- Marking for Nickel Alloy Buttweld SR Elbow
- ANSI B16.9 SR Elbows Fittings Materials and Grades
ASME B16.9 SR Elbow Manufacturer in India
ASME B16.9 SR Elbows are commonly available in 90-degree configurations. They create a sharper turn compared to long radius elbows. These fittings are manufactured according to the standards set by the American Society of Mechanical Engineers (ASME), ensuring precise specifications such as pressure ratings, markings, dimensions, surface finishes, tolerances, and testing procedures.
Following ASME B16.9 guidelines ensures that these fittings meet industry standards for quality and performance.
SR Elbow Specification

Short Radius Elbow Size |
- Seamless Elbow : 1/2 to 24 inch
- Welded Elbow : 1/2 to 48 inch
|
ASME B16.9 Short Radius Elbow Manufacturing Type |
- Seamless
- Welded
- ERW
- Fabricated
|
Thickness |
|
Dimensions Standard |
- ASME B16.9
- MSS-SP-43
- ASME B16.28
|
Type |
- 90 Degree
- 45 Degree
- 180 Degree
- 1D
- 3D
- 5D
|
Short Radius Elbow 45 Degree Material |
- Stainless Steel
- Duplex & Super Duplex Steel
- Carbon Steel
- Alloy Steel
- Nickel Alloy
|
3/8 NPT Street Elbow Certificates |
- MTC EN 10204 3.1/3.2
- 100% Radiography Test Report
- Raw Materials Certificate
- Third Party Inspection Report
- NACE MR0175
- NACE TM-0284
- NACE MR0103
- ISO 15156
|
3/4 Street Elbow Origin |
- Japanese
- Korean
- Indian
- Russian
- Ukraine
- USA
- European
|
45 Deg SR Elbow Pressure Class |
|
Connection Type |
|
Short Radius Elbow Standard |
|
Manufacturing Method |
- Pressing
- Hot Forming
- Hamming
- Flat rolling
- Pipe rolling
- Shape rolling
- Hot mandrel bending
- Piercing
|
Thickness Tolerance |
|
90 Degree SR Elbow Testing |
- Ultrasonic test
- PMI
- HIC tested
- MT
|
Short Radius 90 Degree Elbow Dimensions

NPS in inch |
Center to End
B |
Outer Diameter
D |
1 |
25 |
33.4 |
1¼ |
32 |
42.2 |
1½ |
38 |
48.3 |
2 |
51 |
60.3 |
2½ |
64 |
73 |
3 |
76 |
88.9 |
3½ |
89 |
101.6 |
4 |
102 |
114.3 |
5 |
127 |
141.3 |
6 |
152 |
168.3 |
8 |
203 |
219.1 |
10 |
254 |
273 |
12 |
305 |
323.8 |
14 |
356 |
355.6 |
16 |
406 |
406.4 |
18 |
457 |
457 |
20 |
508 |
508 |
22 |
559 |
559 |
24 |
610 |
610 |
Short radius reducing elbows are manufactured in size range of 1/2 to 48 inch
The wide size range of short radius reducing elbows allows for seamless connections between different pipe diameters in a piping system. This helps ensure smooth fluid flow by avoiding restrictions and providing accurate transitions between various pipe sizes used in plumbing and industrial applications.
The table below provides you with the dimensions or size range of short radius elbows.
45 Degree SR Elbow Dimensions

NPS in inch |
Outer Diameter
D |
45°
3D
Center to End
A |
45°
SR
Center to End
A |
1/2 |
21.3 |
– |
38 |
1 |
33.4 |
76 |
38 |
1½ |
48.3 |
114 |
57 |
2 |
60.3 |
152 |
76 |
3 |
88.9 |
229 |
114 |
4 |
114.3 |
305 |
152 |
6 |
168.3 |
457 |
229 |
10 |
273 |
762 |
381 |
14 |
355.6 |
1067 |
533 |
18 |
457 |
1372 |
686 |
22 |
559 |
1676 |
838 |
26 |
660 |
1981 |
991 |
30 |
762 |
2286 |
1143 |
34 |
864 |
2591 |
1295 |
38 |
965 |
2896 |
1448 |
42 |
1067 |
3200 |
1600 |
44 |
1118 |
3353 |
1676 |
46 |
1168 |
3505 |
1753 |
48 |
1219 |
3658 |
1829 |
ASME B16.9 Short Radius Elbow Dimensions Inches

Nominal Size |
OD at Bevel |
Center to End |
in. |
A
in. |
1 |
1.32 |
1 |
1 1/4 |
1.66 |
1.25 |
1 1/2 |
1.90 |
1.50 |
2 |
2.38 |
2 |
2 1/2 |
2.88 |
2.50 |
3 |
3.50 |
3 |
3 1/2 |
4 |
3.50 |
4 |
4.50 |
4 |
5 |
5.56 |
5 |
6 |
6.62 |
6 |
8 |
8.62 |
8 |
10 |
10.75 |
10 |
12 |
12.75 |
12 |
14 |
14 |
14 |
16 |
16 |
16 |
18 |
18 |
18 |
20 |
20 |
20 |
22 |
22 |
22 |
24 |
24 |
24 |
In SR Elbow radius is the same as pipe diameter (R=D)
This means that the curvature of the SR elbow matches the pipe diameter. This design offers a compact and efficient way to change the direction of fluid flow in piping systems. The consistent radius reduces the need for additional fastening steps while ensuring smooth flow between the pipe and the elbow.
Short Radius Elbow Formula

90 degree short radius elbows are used in conditions where the corners are relatively sharp
Its compact structure makes it ideal for applications where space is limited, such as when navigating obstacles or when the piping system needs to change direction quickly. It reduces the overall length of the piping run, which is essential for compact installations.
SS Short Radius Elbow Applications
- Oil and Gas Pipeline
- Water Supply Systems
- Chemical Industry
- Power Plant
- Fabrication Industry
- Structural Pipe
- Paper & Pulp Industry
- Food Processing Industry
45 deg sr elbow creates a relatively large pressure drop as compared to long radius elbow
This results in less smooth fluid flow compared to long radius elbows. Therefore, SR elbows are not as widely used. However, they are still employed in situations where flow rate is not critical, or where fluids are moved over long distances with multiple directional changes. These elbows cause greater friction loss and may require larger pumping equipment.
Long Radius VS Short Radius Elbow
Description |
Long Radius |
Short Radius Elbow |
Size |
1.5 times greater diameter |
1 times greater diameter |
Bend radius |
Larger |
Small |
Shape |
Flatter |
Compact |
Appearance |
Curved curve |
Sharper curve |
Flow resistance |
Small resistance |
Greater resistance |
Effects of fluid flow |
Smooth fluid flow |
Turbulence flow |
Application |
Chemical industry, oil and gas industries |
Used where the flow is turbulence |
Advantages |
Heavy than short radius |
Lighter than a long radius |
Cost |
More expensive than a short radius |
Less expensive than a long radius |
Pressure Loss |
High |
Low |
90 Deg Short Radius Elbow Weight Chart
NPS |
Weight In Kilogram |
1/2 |
.08 |
1 |
.18 |
1 1/2 |
.41 |
2 |
.73 |
3 |
2.27 |
4 |
4.08 |
6 |
11.11 |
10 |
39.92 |
14 |
72.57 |
18 |
117.93 |
22 |
178.72 |
26 |
249.48 |
36 |
481.72 |
Types of Short Radius Elbow
Short Radius 90 Degree Elbow
45 Degree SR Elbow
3D Short Radius Elbows
ASME B16.9 5D Short Radius Elbow
Buttweld Short Radius Pipe Elbow
1.5D Schedule 10 SR Elbows
Inconel Buttweld SR Elbow Tolerance
NPS |
32 to 48 |
26 to 30 |
20 to 24 |
10 to 18 |
OD
at Bevel (D) |
+ 6.4
– 4.8 |
+ 6.4
– 4.8 |
+ 6.4
– 4.8 |
+ 4
– 3.2 |
ID at End |
4.8 |
3.2 |
Center to End 3D (A/B) |
6 |
6 |
3 |
3 |
Center to End LR (A/B) |
5 |
3 |
2 |
2 |
NPS |
5 to 8 |
4 |
3 to 3.1/2 |
1/2 to 2.1/2 |
OD
at Bevel (D) |
+ 2.4
– 1.6 |
1.6 |
1.6 |
+ 1.6
– .8 |
ID at End |
1.6 |
.8 |
Center to End 3D (A/B) |
3 |
3 |
3 |
3 |
Center to End LR (A/B) |
2 |
2 |
2 |
2 |
Marking for Nickel Alloy Buttweld SR Elbow

ANSI B16.9 SR Elbows Fittings Materials and Grades
Material |
Standards and Grade |
Carbon Steel Short Radius Elbow |
- ASTM A105
- ASTM A350 LF2
- ASTM A694.
- DIN 1.0402
- DIN 1.0619
|
Alloy Steel Short Radius Elbow |
- ASTM A182 F5
- F9
- F11
- F22
- F91
|
Stainless Steel Short Radius Elbow |
- ASTM A403 WP304
- F304L
- F316
- F316L
- F317 / 317L
- F321 / 321H
- F347
|
Inconel 90 Degree Short Radius Pipe Elbow |
|
Copper Nickel Short Radius 90 Degree Elbow |
- C70600 – 90/10
- C71500 – 70/30
|
Hastelloy Short Radius Reducing Elbow |
|
Nickel Alloy SR Elbow |
|
Duplex Short Radius Elbow |
|
Super Duplex SR 45 deg Elbow |
|
Incoloy SR Elbow |
|
Titanium Short Radius 90 Degree Elbows |
- Grade 1
- Grade 2
- Grade 4
- Grade 5
- Grade 7
|
Pulverizer Machine
Pulverizer Machine is used to grind medicine, food and chemical maetrails to powders
Pulverizer Machine,Chili Grinder,Grinding Machine,Powder Grinding Machine
WUXI DEIICHEN MACHINERY PTY.,LTD , https://www.dicmachine.com