UNS C63000 Aluminum Bronze Sample MTC Certificate
Access a comprehensive, professionally formatted Material Test Certificate according to EN 10204-2004: 3.1 for UNS C63000 (Nickel Aluminum Bronze) fasteners. Review the documentation verifying its high-strength chemistry, exceptional resistance to marine corrosion and erosion, and mechanical properties.
What's Inside This C63000 MTC Certificate
This sample mill test certificate details the critical chemical and mechanical parameters for UNS C63000, commonly known as Nickel Aluminum Bronze. This high-performance copper alloy is engineered for applications requiring superior strength, fatigue resistance, and durability in harsh, corrosive environments such as seawater or high-pressure hydraulic systems.
- Full Traceability: Certified with TC No.: S272/26-XX and mapped to ASTM F468 and ASTM B150 specifications for high-strength nonferrous bolting materials.
- Nickel-Aluminum Alloying: Explicitly verifies the complex chemistry: Copper base with ~10% Aluminum (Al), ~5% Nickel (Ni), and ~3% Iron (Fe). The Nickel addition is vital for reducing corrosion in high-velocity seawater applications.
- High-Strength Mechanical Properties: Unlike standard brass, this alloy is heat-treatable and achieves mechanical properties comparable to mild steel, logging high Tensile (min 585 MPa) and Yield (min 310 MPa) strengths.
- Dezincification Resistance: Due to the Nickel-Aluminum composition, the alloy is essentially immune to dezincification, ensuring long-term structural integrity in underwater or saltwater-exposed assemblies.
- Quality Compliance: 100% visual inspection and precision dimensional checks executed to ASME B18.2.1 standards. Material is characterized by its high wear resistance and non-galling properties.
Live Preview: UNS C63000 Aluminum Bronze MTC Data
Review the specialized high-strength marine-grade chemical and physical parameters before downloading.
TC Number
S272/26-XX
TC Date
06.03.20XX
Material Spec
ASTM F468 / B150 UNS C63000
Bar Shape / Size
Round Bar / 22 mm
Dimensions / Item
Hex Head Bolt M22-2.5P x 90 mm
Quantity
300.00 NOS
Chemical Composition %
| Cu (Copper) | Al (Aluminum) | Ni (Nickel) | Fe (Iron) | Mn (Manganese) |
|---|---|---|---|---|
| Rem (81.45) | 10.20 | 5.10 | 3.05 | 0.20 |
| Balance | Min: 9.0 Max: 11.0 |
Min: 4.0 Max: 5.5 |
Min: 2.0 Max: 4.0 |
Max: 1.50 |
Mechanical Properties
| TENSILE STRENGTH (MPa) | YIELD STRENGTH 0.5% Ext (MPa) | % ELONGATION (GL-50mm) | HARDNESS (HRB) |
|---|---|---|---|
| 645.20 | 345.50 | 16.00 | 90, 92, 91 |
| Min: 585 (85 ksi) | Min: 310 (45 ksi) | Min: 12 | Typical: 85-95 |
Standard References & Compliance
Our MTC certificates for marine-grade nonferrous fasteners align with the stringent requirements of the offshore platform, naval vessel, and subsea industry sectors. The test reports confirm exact compliance with ASTM F468 and ASTM B150 with respect to the specific heat and lot tested.
| Standard / Requirement | Confirmation on Certificate |
|---|---|
| Visual Inspection | 100% visual inspection carried out & found free from defects. |
| Corrosion Resistance | Alloy chemistry verified to resist seawater erosion/corrosion. |
| Non-Magnetic Property | Confirmed non-magnetic for marine electronic applications. |
| Dimensional Accuracy | All Dimensions are as per PO Specification / ASME B18.2.1. |
Certification Details
We confirm that the above mentioned items were Manufactured, Sampled, Tested, and Inspected in accordance with the subjected Customer's Purchase Order and applicable Drawings, Material Specifications, Codes & Standards.
Documentation Standard
- EN 10204-2004: 3.1 Standard
- Free from radioactive contamination
- Certified ISO 9001: 2015 Company
Processing State
- Hot Forged Bar Stock
- Stress relieved for marine service
Testing Conditions
- Mechanical tests carried out at room temp
- 100% visual inspection carried out
Technical FAQs — UNS C63000 Aluminum Bronze MTC
Why is Nickel Aluminum Bronze (C63000) so popular for marine fasteners?
C63000 provides an extraordinary combination of "steel-like" mechanical strength and incredible resistance to seawater corrosion. The addition of Nickel (5%) to the Aluminum Bronze matrix stabilizes the protective oxide film on the bolt's surface, making it uniquely capable of resisting impingement corrosion (erosion from high-velocity water) found in ship hulls, propellers, and desalination infrastructure.
Is C63000 resistant to dezincification?
Yes. Many brass alloys fail in marine environments because they lose Zinc (dezincification). The complex composition of Nickel Aluminum Bronze (C63000) prevents this chemical leaching entirely, making it one of the most reliable and long-lasting non-ferrous materials for subsea or tidal-zone applications.
Can C63000 be used in structural load-bearing applications?
Yes. Unlike standard architectural bronzes, C63000 is often classified as a high-strength engineering alloy. With a yield strength exceeding 310 MPa (45 ksi) and high toughness, it is frequently used as a direct alternative to stainless steel bolts in situations where the bolts must handle high structural loads while simultaneously submerged in highly corrosive saline environments.