Introduction: Strength Meets Corrosion Resistance
Industrial systems that operate in high-wear, corrosive, and marine environments require materials that deliver exceptional mechanical strength while resisting seawater and chemical attack. Aluminum Bronze Tube Fittings are engineered to meet these challenges with a powerful combination of durability, toughness, and corrosion resistance.
At Mcneil Instruments, we manufacture, supply, and export high-quality Aluminum Bronze Tube Fittings that comply with global standards such as ASTM B148, ASTM B150, and ASTM B124. These fittings are widely used for hydraulic, seawater, and heavy-duty industrial applications where long-term reliability is essential.
This blog provides a complete guide to the properties, grades, technical specifications, and industrial applications of Aluminum Bronze Tube Fittings.
What Are Aluminum Bronze Tube Fittings?
Aluminum Bronze is a copper-based alloy containing aluminum as the primary strengthening element. When added with iron, manganese, nickel, or silicon, aluminum bronze exhibits:
✔ Superior corrosion and seawater resistance
✔ Excellent strength-to-weight ratio
✔ High resistance to shock, impact, and wear
✔ Outstanding performance in high-pressure conditions
These fittings are commonly used in instrumentation systems, pipelines, pumps, valves, and fluid-control setups.
Grades of Aluminum Bronze Tube Fittings
Mcneil Instruments offers three major grades based on ASTM standards:
C95400 Aluminum Bronze
C95500 Aluminum Bronze
C95800 Aluminum Bronze
Each grade has specific advantages based on mechanical and corrosion-resistance requirements.
1. Aluminum Bronze C95400 Tube Fittings
Overview:
C95400 is the most commonly used aluminum bronze grade offering high strength, superior wear resistance, and excellent performance in high-load industrial systems.
Key Features:
- Great resistance to abrasion and galling
- Suitable for temperatures up to 400°C
- High fatigue and stress-corrosion strength
Applications:
- Marine equipment
- Oil & gas hydraulic systems
- Industrial pumps and valves
- Offshore structural components
Chemical Composition:
| Element | Composition (%) |
| Copper | 83 – 88 |
| Aluminum | 10 – 11.5 |
| Iron | 1.5 – 3.5 |
| Manganese | ≤ 1.5 |
Mechanical Properties:
| Property | Value |
| Tensile Strength | ≥ 655 MPa |
| Yield Strength | ≥ 310 MPa |
| Hardness | 170–190 HB |
2. Aluminum Bronze C95500 Tube Fittings
Overview:
C95500 is a stronger nickel-aluminum bronze alloy offering excellent shock, impact, and corrosion resistance, even in high-salinity marine environments.
Key Features:
- Superior seawater resistance
- High compressive strength
- Excellent resistance to cavitation in pumps
Applications:
- Subsea and marine engineering
- High-pressure hydraulic fittings
- Chemical processing equipment
- Valve and flanged systems
Chemical Composition:
| Element | Composition (%) |
| Copper | 78 – 82 |
| Aluminum | 10 – 11.5 |
| Nickel | 3 – 5 |
| Iron | 1.5 – 4 |
Mechanical Properties:
| Property | Value |
| Tensile Strength | ≥ 725 MPa |
| Yield Strength | ≥ 380 MPa |
| Hardness | 200–230 HB |
3. Aluminum Bronze C95800 Tube Fittings
Overview:
C95800 offers exceptional resistance to seawater corrosion, erosion, and stress cracking — making it the most preferred grade for offshore and defense applications.
Key Features:
- Resistant to chlorides and biofouling
- Excellent mechanical stability in seawater
- Durable in acidic and alkaline conditions
Applications:
- Shipbuilding and subsea systems
- Defense marine hardware
- Heat exchangers and condenser systems
- Oil & gas riser piping
Chemical Composition:
| Element | Composition (%) |
| Copper | 78 – 82 |
| Aluminum | 8.5 – 9.5 |
| Nickel | 4 – 5.5 |
| Iron | 3 – 4 |
Mechanical Properties:
| Property | Value |
| Tensile Strength | ≥ 690 MPa |
| Yield Strength | ≥ 310 MPa |
| Hardness | 180–220 HB |
Technical Specifications of Aluminum Bronze Tube Fittings
| Specification | Details |
| Standards | ASTM B148, ASTM B150, ASTM B171 |
| Size Range | 1/8″ to 2″ |
| Pressure Rating | Up to 6000 psi |
| Connection Types | Ferrule, Compression, Threaded, Swage |
| Temperature Range | -70°C to +400°C |
| Manufacturing Type | Forged / Machined / Annealed |
Why Choose Aluminum Bronze Tube Fittings?
- Outstanding seawater & corrosion protection
- High wear resistance & mechanical strength
- Leak-proof fluid control performance
- Excellent shock and impact resistance
- Long operational life with low maintenance
- Cost-effective vs. exotic nickel alloys
Industrial Applications
| Industry | Applications |
| Marine & Shipbuilding | Seawater piping, desalination systems |
| Oil & Gas | Offshore structures, subsea pipelines |
| Chemical Processing | Acidic & alkaline fluid handling |
| Defense | Naval and underwater hardware |
| Hydraulic Systems | High-pressure fittings for machinery |
Quality Testing & Certifications
All products undergo rigorous testing:
- Hydrostatic pressure testing
- Non-destructive testing (NDT)
- Chemical & mechanical testing
- PMI (Positive Material Identification)
- Dimensional accuracy inspection
ISO 9001:2015 Certified
EN 10204 3.1 / 3.2 Test Certificates
Compliance with ASTM, ASME, DIN & Industry standards
Global Supply Network
Mcneil Instruments exports Aluminum Bronze Tube Fittings to:
Saudi Arabia, UAE, Qatar, Kuwait, Oman
USA, Canada, Mexico
Singapore, Malaysia, Indonesia
UK, Germany, Italy
Nigeria, Kenya, Egypt
We support major EPC contractors, offshore projects, power plants, and marine engineering companies worldwide.
Conclusion: Engineered for High-Performance Environments
Aluminum Bronze Tube Fittings — including grades C95400, C95500, and C95800 — are built for industries where mechanical stress, corrosion, and seawater exposure are constant. Their unmatched combination of strength, durability, and resistance ensures long-term operational reliability.
As a leading Aluminum Bronze Tube Fittings manufacturer, supplier, and exporter in India, Mcneil Instruments delivers world-class precision-engineered fittings designed to meet challenging industrial requirements.
Dependability at Sea, Strength in Service
