Service Metal
300# Black Malleable 45 Elbows
- SKU:
- XB45
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
300# Black Malleable Iron 45 Degree Elbow
300# Black Malleable Iron 45° Elbows are designed for higher-duty threaded piping systems requiring a gradual change in direction with dependable strength and durability.
Manufactured from malleable iron, these Class 300 elbows are well suited for industrial, commercial, plumbing, mechanical, gas, air, oil, and compatible fluid piping applications where a 45-degree directional transition is preferred over a sharper 90-degree turn.
Product Highlights
- 45° threaded elbow configuration
- Female NPT threaded connections
- Designed for higher-duty Class 300 threaded piping systems
- Provides a gradual directional change
- Can help reduce turbulence compared with sharper piping turns
- Durable black malleable iron construction
- Malleable castings conform to ASTM A197
- Malleable fitting dimensions conform to ASME B16.3
- NPT threads conform to ASME B1.20.1
- Class 300 fittings are UL Listed
- Suitable for gas, oil, air, and compatible fluid piping systems
- Manufactured in an ISO-certified facility
- Country of origin: Thailand & China
Technical Specifications
| Product Type | 45 Degree Elbow |
|---|---|
| Material | Malleable Iron |
| Finish | Black |
| Pressure Class | 300# |
| Connection Type | Female NPT x Female NPT |
| Configuration | 45° Elbow |
| Primary Function | Gradual Directional Change |
| Casting Standard | ASTM A197 |
| Dimensional Standard | ASME B16.3 |
| Thread Standard | ASME B1.20.1 |
| Listing | Class 300 Fittings are UL Listed |
| Manufacturing | ISO-Certified Facility |
| Country of Origin | Thailand & China |
Construction & Applications
Malleable Iron Construction
Manufactured from malleable iron castings conforming to ASTM A197 for dependable strength and durability in demanding threaded piping systems.
Class 300 Design
The heavier Class 300 construction is intended for more demanding threaded piping applications than standard Class 150 malleable iron fittings.
45° Directional Change
The elbow changes the piping direction by 45 degrees, providing a more gradual turn than a standard 90-degree elbow.
Why Use a 45 Degree Elbow?
Smoother Routing
A 45-degree elbow provides a gradual change in piping direction and can be useful where a full 90-degree turn is not required.
Reduced Directional Severity
Compared with a sharper 90-degree turn, a 45-degree elbow can help create a smoother flow path and reduce abrupt changes in direction.
Typical Applications
Industrial & Mechanical Piping
- Industrial piping systems
- Mechanical piping
- Compressed air systems
- Equipment connections
- General fluid piping
Common Service Applications
- Gas piping
- Oil piping
- Air lines
- Utility piping
- Higher-duty threaded systems
Ask Willy: Need Pipe Size Help?
Use our common pipe diameters and wall thickness chart to confirm sizing before ordering 300# black malleable iron fittings. You can also review the 45-degree elbow specification sheet and Certificate of Conformance below.
Standards & Approvals
ASTM A197
Malleable iron castings conform to ASTM A197.
ASME Standards
Malleable fitting dimensions conform to ASME B16.3, while NPT threads conform to ASME B1.20.1.
UL Listing
The supplied product information states that Class 300 malleable iron fittings are UL Listed.
Related Malleable Iron Standards
- Malleable bushings, plugs, and locknuts conform to ASME B16.14.
- Malleable unions conform to ASME B16.39.
- NPT threads on applicable fittings conform to ASME B1.20.1.
- Class 300 fittings are UL Listed according to the supplied product information.
Need More 300# Black Malleable Iron Fittings?
Browse our complete selection of 300# black malleable iron fittings, including 45-degree elbows, 90-degree elbows, street elbows, tees, couplings, bushings, unions, and other heavy-duty threaded fittings.
Frequently Asked Questions
What is a 300# black malleable iron 45-degree elbow used for?
It is used to change the direction of a higher-duty threaded piping system by 45 degrees.
What type of connections does this elbow use?
The elbow uses female NPT threaded connections on both ends.
How is a 45-degree elbow different from a 90-degree elbow?
A 45-degree elbow creates a more gradual directional change, while a 90-degree elbow creates a right-angle turn.
Can a 45-degree elbow help reduce turbulence?
A more gradual turn can help reduce the severity of the directional change compared with a sharper 90-degree elbow, although actual system performance depends on the complete piping layout and operating conditions.
How is a 300# elbow different from a 150# elbow?
The Class 300 fitting is a heavier-duty fitting intended for more demanding threaded piping applications than a standard Class 150 fitting.
What material standard applies?
The supplied product information states that the malleable iron castings conform to ASTM A197.
What dimensional standard applies?
Malleable fitting dimensions conform to ASME B16.3.
What thread standard applies?
NPT threads conform to ASME B1.20.1.
Are Class 300 malleable iron fittings UL Listed?
Yes. The supplied product information states that Class 300 fittings are UL Listed.
What should I verify before ordering?
Confirm the nominal pipe size, connection type, required fitting class, service conditions, and applicable piping-system requirements before ordering.
Important Ordering & Installation Notes
- Confirm the required nominal pipe size before ordering.
- This fitting uses female NPT threaded connections on both ends.
- The elbow creates a 45° directional change without reducing pipe size.
- Confirm that Class 300 construction is appropriate for the intended piping system.
- NPT threads conform to ASME B1.20.1.
- Malleable fitting dimensions conform to ASME B16.3.
- Use compatible pipe, fittings, thread sealant, and accepted threaded installation practices.
- Do not assume the “300#” class designation alone establishes allowable working pressure for every service condition.
- Verify pressure, temperature, media compatibility, applicable codes, and system requirements before installation.
- Refer to the specification sheet and Certificate of Conformance for additional product information.
