Bronze elbows and 90-degree bronze elbow fittings are critical piping components used in marine, industrial, and offshore applications where superior corrosion resistance, pressure integrity, and long service life are essential. At Cable Glands India, we manufacture and export a comprehensive range of bronze elbow fittings — including 90° elbows, 45° elbows, and long-radius elbows — in all standard bronze alloys and pipe sizes for the global market, with particular focus on the USA, UK, and Australia.

Types of Bronze Elbows We Manufacture

1. Bronze 90° Elbow Fittings

The most common bronze elbow, providing a 90-degree change in pipe direction. Available in screwed (NPT, BSP, BSPT), solder-end (sweat), and flanged configurations. Materials: C83600 (Ounce Metal / Red Brass), C90500 (Gun Metal), C92200. Pressure ratings: PN16, PN25, 125lb, 250lb ASME.

2. Bronze 45° Elbow Fittings

Used where a 45-degree direction change is required to reduce turbulence and pressure drop. Available in screwed and soldered ends for copper tube (15mm to 108mm) and pipe (1/4″ to 4″ NPT/BSP).

3. Long Radius Bronze Elbows (1.5D)

Long-radius elbows (centerline radius = 1.5× nominal pipe diameter) minimize flow resistance and pressure drop. Preferred for process piping, HVAC systems, and fire suppression where flow efficiency is critical. Available in butt-weld and socket-weld ends.

4. Street Elbow (Male×Female)

One end has a male thread (NPT or BSP) and the other a female thread — allowing direct connection to fittings or valves without a nipple. Popular in plumbing and marine installations.

5. Reducing Bronze Elbows

Elbows with different inlet and outlet sizes for combined direction change and pipe size reduction — eliminates the need for a separate reducer, saving space and reducing leak points.

6. Aluminium Bronze 90° Elbows (Offshore Grade)

C95400 and C95500 aluminium bronze elbows for offshore oil platforms, FPSO vessels, and subsea piping — providing superior resistance to seawater corrosion, erosion, and cavitation.

Related Bronze Fittings We Supply

• Bronze Tees (Equal and Reducing, BSP, NPT)
• Bronze Couplings and Half Couplings
• Bronze Unions (3-piece, screwed)
• Bronze Nipples (Hex, Close, Long)
• Bronze Reducers (Concentric and Eccentric)
• Bronze Plugs and Caps
• Bronze Crosses (4-way fittings)
• Bronze Street Tees and Crosses

Bronze Elbow Alloy Grades – International Equivalents

Alloy	ASTM (USA)	BS (UK)	EN (Europe)	Applications
Leaded Red Brass	C83600 (SAE 40)	LG4	CC493K	General plumbing, steam, water
Gun Metal	C90500	G1, LG2	CC491K	Marine, seawater, high pressure
Navy M Bronze	C92200	LG2	CC492K	Steam service up to 230°C
Aluminium Bronze	C95400, C95500	AB1, AB2	CC331G	Offshore, seawater, erosive service
Manganese Bronze	C86300	HTB1	CC765S	High-pressure, high-temperature
Silicon Bronze	C87300	SB1	CC755S	Lead-free, potable water, artistic

Standards and Specifications for Bronze Elbows

• ASME B16.15: Cast Bronze Threaded Fittings (Class 125 & 250)
• ASME B16.18: Cast Copper Alloy Solder-Joint Pressure Fittings
• BS 1400: Bronze Casting Alloys for General Engineering
• BS 143/1256: Malleable Iron and Steel Pipe Fittings (Bronze version)
• MSS SP-80: Bronze Gate, Globe, Angle, Check Valves
• ASTM B61, B62: Steam Bronze and Ounce Metal Castings
• AWWA C800: Underground Bronze Service Line Valves and Fittings

Why Choose Cable Glands India for Bronze Elbow Fittings?

• Full Range: 1/8″ to 6″ NPT, 6mm to 150mm BSP, and metric sizes in all bronze alloys.
• Multiple Manufacturing Methods: Sand casting for large fittings, investment casting for intricate designs, forging for high-pressure ratings.
• ASME & ASTM Compliance: Fittings manufactured and tested to US standards for direct acceptance by US customers.
• Pressure Testing: Hydrostatic testing to 1.5× working pressure on all pressure-rated fittings.
• USA Export Expertise: HTS code 7419.99 for bronze fittings; ISF compliance; USDA/FDA documentation where required.

Frequently Asked Questions – Bronze Elbows

Q1: What is a bronze elbow fitting used for?

A: Bronze elbow fittings are used to change the direction of flow in piping systems by 45° or 90°. They connect two sections of pipe or tube at an angle and are used in plumbing, marine, HVAC, fire suppression, steam, compressed air, and industrial fluid systems.

Q2: What bronze alloy is best for 90° elbows in seawater?

A: C90500 (Gun Metal) or C95400 (Aluminium Bronze) are best for seawater service. Gun Metal provides excellent corrosion resistance and has a proven track record in naval and marine applications since the 19th century. Aluminium Bronze adds superior erosion resistance for high-velocity seawater systems.

Q3: What is the difference between C83600 and C90500 bronze elbows?

A: C83600 (Leaded Red Brass / Ounce Metal) is more economical and suitable for steam, water, and gas at moderate pressures (up to 175 psi). C90500 (Gun Metal) has higher tin content (10%), providing greater corrosion resistance and higher pressure ratings (up to 300 psi) — preferred for demanding marine and industrial applications.

Q4: Are your bronze elbows compatible with NPT threads (US standard)?

A: Yes. All our bronze elbows for the US market are manufactured with NPT (National Pipe Taper) threads per ASME B1.20.1, conforming to ASME B16.15 Class 125 and Class 250 specifications. We also supply BSP and metric thread versions for other markets.

Q5: What pressure ratings are available for bronze 90° elbows?

A: ASME B16.15 Class 125 (rated 200 psi WOG at ambient), Class 250 (rated 400 psi WOG), and PN16/PN25 for European metric sizes. Custom higher-pressure ratings in Aluminium Bronze available up to 5,000 psi for oil and gas applications.

Q6: Can bronze elbows be used for natural gas service?

A: Yes. Bronze fittings (particularly C83600 and C84400) are approved for natural gas service in many jurisdictions per ASTM B62 and ASME B16.15. Always verify with local gas utility and building codes, as copper/bronze gas fitting approval varies by region (accepted in most US states; check local AHJ).

Q7: What is the temperature rating for bronze elbow fittings?

A: C83600 bronze elbows: -40°C to +230°C for steam service. C90500 (Gun Metal): up to 260°C. Aluminium Bronze C95400: up to 400°C with appropriate gaskets. Minimum temperature: -196°C (cryogenic service with C90500).

Q8: Do you offer custom bronze elbow fittings in non-standard sizes?

A: Yes. We manufacture custom bronze elbows in non-standard sizes, unusual radius configurations, special alloys, and special end connections from customer drawings. Minimum order for custom: 25–50 pieces depending on size.

Q9: What wall thickness standards apply to bronze elbows?

A: Casting wall thickness is governed by ASTM B584 (sand castings) and ASTM B271 (centrifugal castings). Minimum wall thickness per ASME B16.15 for each pressure class and pipe size. We perform pressure testing to verify integrity.

Q10: Are your bronze elbows lead-free for potable water use in the USA?

A: C83600 (Ounce Metal) contains lead and does not meet NSF/ANSI 61 “lead-free” requirements (max 0.25% weighted average) for US potable water since 2014. For NSF 61 compliant bronze elbows, we offer C87850 (Silicon Brass) or C89833/C89836 (Bismuth-Tin Brass) lead-free alternatives.

Q11: How do I specify a bronze elbow for my application?

A: Specify: (1) Pipe size (NPS or DN), (2) Connection type (NPT/BSP/socket/flange), (3) Angle (90° or 45°), (4) Pressure class (125/250 or PN16/25), (5) Fluid/service (water/steam/gas/seawater), (6) Alloy preference (C83600/C90500/C95400). We will recommend the appropriate fitting.

Q12: What is the lead time for bronze elbow fittings?

A: Standard C83600 and C90500 elbows in common sizes (1/4″ to 2″): 4–6 weeks. Larger sizes (2.5″ to 6″): 6–10 weeks. Custom designs: 8–12 weeks. Express production available at surcharge.

Q13: Do you supply bronze tees, couplings, and unions along with elbows?

A: Yes. We manufacture complete bronze pipe fitting families: elbows (90° and 45°), tees, crosses, couplings, unions, reducers, bushings, plugs, caps, and street fittings — allowing customers to source all fittings from one supplier with consistent quality and matching alloy specifications.

Contact Cable Glands India for bronze elbow fitting quotations. Email your specifications to sales@cableglandsindia.com.

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