MARINE COPPER ALLOY · COMPONENT AND REPAIR SOURCING
Nickel-Aluminium Bronze for Marine Components and Repair
Technical sourcing of nickel-aluminium bronze castings, bars, machined components and verified repair consumables by exact alloy, product standard and project requirements.
MNK-G.S.A coordinates NAB inquiries for propeller, pump, valve, bearing, wear and other marine-component applications through qualified manufacturing and documentation routes.
Technical Identity
- Nickel-aluminium bronze is a material family. A cast component, wrought bar and welding consumable require different standards and cannot be treated as one automatically interchangeable grade.
- ASTM B148-24 covers aluminium-bronze sand castings and includes UNS C95500 and C95800 among the listed alloys.
- EN 1982:2024 is the current European framework for copper-alloy ingots and castings; the 2017 edition has been replaced.
- A current voestalpine product catalogue maps one specific solid wire, UTP A 3444, to AWS ERCuNiAl and ISO 24373 S Cu 6328 (CuAl9Ni5Fe3Mn2). This is product-specific evidence, not universal equivalence with every NAB casting grade.
- The governing drawing, exact alloy, casting or wrought route, condition, heat treatment, inspection plan and approved repair procedure control the quotation.
Standards and Supply Scope
| Referenced cast-alloy families | UNS C95500 and C95800 may be considered only when explicitly required and supported by the governing product standard |
| European casting framework | EN 1982:2024 — copper and copper alloys, ingots and castings |
| US sand-casting framework | ASTM B148-24 — aluminium-bronze sand castings |
| Potential supply forms | Cast, centrifugal-cast or continuous-cast components; wrought bar; machined parts; verified repair wire or rods, as specified |
| Repair-consumable framework | AWS A5.7/A5.7M:2026 and ISO 24373:2018, with exact manufacturer classification and WPS verification |
| Documentation | Material certificate, heat or batch traceability, dimensional report, NDT and class or third-party inspection where required |
Application Context
Industry guidance identifies nickel-aluminium bronze in marine pumps, valves, propellers, shafts, bushings, bearings, fasteners and wear components. These are application contexts rather than automatic material approvals. Section thickness, casting quality, microstructure, heat treatment, corrosion environment, galvanic interaction, load and repair history must be reviewed for the actual component.
RFQ and Quality Controls
- Exact UNS, EN or customer material designation and product standard
- Casting, wrought or machining route; condition and required heat treatment
- Drawing, dimensions, tolerances, surface condition and machining allowance
- Mechanical, corrosion, NDT, class and inspection requirements
- For repair: base-material verification, approved WPS/PQR, filler classification and post-repair acceptance
- Quantity, unit weight, packing, traceability and delivery destination
Related Technical Pages
Technical Sources
- ASTM B148-24 official record
- EN 1982:2024 official BSI record
- AWS A5.7/A5.7M:2026 official record
- ISO 24373:2018 official record
- voestalpine Bohler Welding solid-wire catalogue
- Copper Development Association — Guide to Nickel Aluminium Bronze
Standards identify product requirements and classification frameworks; they do not establish universal equivalence between cast NAB grades and repair consumables. MNK verifies the offered manufacturer, condition, certificate, WPS and project acceptance before quotation.
Send Your Technical Inquiry
Send the exact NAB designation or governing specification, component drawing, product route, condition, dimensions, quantity, inspection requirements and delivery destination. For repair consumables, include the verified base material and approved procedure requirements.