3/8 inch Black Iron 90 Degree Elbow Female x Female

3/8" Black Malleable Iron 90° Elbow – Threaded F-F for Directional Transitions

The 3/8" Black Iron 90° Elbow is designed to facilitate 90-degree directional changes in piping systems where space constraints or design requirements demand tight routing. Manufactured from durable black malleable iron, this fitting provides consistent mechanical strength and corrosion resistance in non-potable applications such as natural gas, air, and oil distribution.

Commonly used in threaded black pipe systems, the elbow features NPT female threads on both ends to ensure compatibility with standard Schedule 40 black steel pipe and other compatible fittings. This product is suited for both new construction and system modifications, particularly in commercial and light industrial installations.

Key Advantages

• ✅ Malleable Iron Construction – Engineered for toughness and dimensional stability under pressure and vibration.
• ✅ Threaded Ends (F x F) – NPT threads ensure a secure, standardized connection across a wide range of system components.
• ✅ Rated for Pressure Systems – Suitable for use in steam, air, and gas applications requiring robust mechanical integrity.
• ✅ Resists Scaling – Non-galvanized black finish aids in protection against scaling during high-heat service conditions.

Specifications

• Material: Black malleable iron
• Size: 3/8 inch nominal
• Ends: Female NPT x Female NPT
• Temperature Range: Up to 150°F (steam) / higher ranges may vary by use case
• Pressure Rating: Up to 150 PSI for steam; 300 PSI for air and liquid (based on system parameters)
• Compliance: Manufactured in accordance with ASTM A197 / ANSI/ASME B16.3 and B16.14 (thread standards)

Application Environments

This 3/8" elbow is typically deployed in gas line systems, compressed air piping, fire protection infrastructure (non-potable), and closed-loop hydronic heating networks. It is not intended for potable water use due to the lack of galvanization and potential for internal oxidation.

Installation Notes

Install using standard threading procedures. Pipe dope or thread sealant tape is recommended to ensure leak-free joints. Avoid over-torquing to prevent stress fractures in the fitting. Always verify thread engagement and alignment prior to pressurization.

Did You Know?

Black iron fittings are preferred in fuel gas distribution systems because they meet stringent safety regulations and exhibit excellent resistance to heat and mechanical fatigue—factors critical in pressurized gas line service.

The 3/8" Black Iron 90° Elbow delivers consistent, code-compliant performance where directional transitions are required under load. Designed for demanding mechanical and utility installations, this fitting ensures lasting integrity with a professional-grade seal every time.