Machined round component blanks in a blue workshop tray; reference component imagery
    Copper alloys

    Copper & Bronze Alloys

    Drawing-led enquiries for bronze fasteners, bushes, sleeves and wear components — with the alloy, product form and inspection scope defined before supply.

    Request a Quote
    C63000 / C65500 / C51000

    Grade · condition · drawing · traceability

    ENGINEERED SUPPLY, NOT OFF-THE-SHELFQUALIFIED PARTNER NETWORKLEAD TIME CONFIRMED PER RFQ
    MATERIAL / APPLICATION / CONDITION

    The right alloy.
    The right specification.

    Copper alloys are not one interchangeable material. Nickel aluminium bronze, silicon bronze and phosphor bronze have different compositions, strengths and wear characteristics. Selecting a family name alone is not enough for a critical purchase order.

    EMG reviews bronze fastener and machined-component requirements through qualified supply partners. Send the UNS designation, drawing revision, quantity and operating environment so the proposed material route can be checked against your specification.

    Explore the materials reference
    Precision-machined shafts, housings and threaded components illustrating component applications
    EMG component imagery. Photographs illustrate component types; the material certificate verifies the supplied grade.
    PROCUREMENT REFERENCE

    What to specify

    Nickel aluminium bronze

    C63000

    Wrought copper-aluminium-nickel alloy considered for marine hardware, loaded bushes and wear parts.

    RFQ CHECK

    Specify wrought product form and condition. Do not substitute a cast bronze designation.

    Silicon bronze

    C65500

    Wrought high-silicon bronze considered for corrosion-resistant hardware and selected fasteners.

    RFQ CHECK

    Confirm required strength, thread form and compatibility with the mating assembly.

    Phosphor bronze

    C51000

    Copper-tin-phosphorus alloy considered for bearing, spring and electrical-contact applications.

    RFQ CHECK

    Temper, product form and bearing design govern suitability; it is not a universal replacement for C63000.

    Reference designations are not stock, certified equivalence or guaranteed service suitability. Final product requirements govern every quotation.

    WHERE THE SPECIFICATION MATTERS

    Engineered around the application

    Offshore oil and gas platform

    Marine & offshore

    Specified corrosion-resistant hardware, bushes and sleeves for marine equipment, subject to design approval.

    Water treatment plant and industrial water-handling equipment

    Pumps & rotating equipment

    Drawing-based bearing bushes, wear rings and sleeves with fits, surface finish and lubrication requirements defined.

    Mining and minerals processing plant

    Mining & process plants

    Replacement wear components and specialised hardware where the OEM specifies a copper alloy.

    ENGINEERING CHECKPOINTS

    Control the details that matter.

    01

    Wrought is not cast

    A cast valve-body alloy and a wrought shaft or bolt alloy can have different designations and properties. State the exact product specification, not simply ‘bronze’.

    02

    Design the mating pair

    Consider galvanic compatibility, seawater exposure, lubrication, shaft finish and contact pressure when selecting bushes or sleeves.

    03

    Avoid broad safety claims

    Copper-alloy selection does not make a component automatically non-sparking, non-magnetic or approved for a hazardous area. Those requirements need separate verification.

    MATERIAL QUESTIONS

    Before you order

    YOUR SPECIFICATION. OUR SUPPLY NETWORK.

    Send the requirement.
    Get a defined supply route.

    For Copper & Bronze Alloys fasteners or machined components, send your drawing, quantity, material condition and required delivery date. EMG confirms sourcing, partner capacity, inspection records and lead time against your RFQ.

    Drawing & dimensions

    Revision, thread form, fits and surface finish.

    Material & condition

    UNS, product standard, heat treatment and service requirements.

    Inspection & records

    Specify EN 10204 3.1 / 3.2, PMI and witness requirements where applicable.

    Managed supply through qualified partners; no claim of EMG-owned machinery or guaranteed stock.

    Connected capabilities

    TECHNICAL REFERENCES

    Copper Development Association — alloy database

    Producer references support alloy identification; the approved drawing and governing specification control acceptance. INCONEL and NITRONIC are trademarks of their respective owners. No authorised affiliation is implied.