Duplex machined valve body illustrating valve-component geometry, not the featured alloy
    Duplex stainless steel

    Duplex 2205

    Duplex 2205 fastener and machined-component enquiries for Australian and international industrial projects, with condition, inspection and lead time confirmed against your specification.

    Request a Quote
    UNS S31803 / S32205

    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.

    2205 duplex stainless combines austenitic and ferritic phases. UNS S31803 and S32205 are related but separately defined designations; the purchase specification must identify the permitted grade.

    EMG reviews Duplex 2205 requirements through qualified supply partners. Include the drawing revision, quantity, material condition and required site date so sourcing and documentation can be defined before an order is placed.

    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

    Duplex 2205

    UNS S31803 / S32205

    Chloride-exposed bolts · pump and valve parts

    RFQ CHECK

    Specify UNS, product form and governing standard. ASTM A182 F51 is a forging designation, not a blanket finished-bolt specification.

    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

    Water treatment plant and industrial water-handling equipment

    Water handling and process equipment

    Drawing-defined bolting, shafts and valve parts in chloride-exposed equipment where duplex 2205 has been selected by the designer.

    Socket head cap screws illustrating threaded-component applications

    Fastener assemblies

    Studs, hex bolts and companion nuts in Duplex 2205 to the approved drawing. Confirm thread form, length, mating material and any coating requirements.

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

    Parts to drawing

    Shafts, sleeves, collars and valve parts supplied through qualified manufacturing partners. Fits, surface finish, treatment and usable capacity are confirmed per enquiry.

    ENGINEERING CHECKPOINTS

    Control the details that matter.

    01

    The product specification governs

    Specify UNS, product form and governing standard. ASTM A182 F51 is a forging designation, not a blanket finished-bolt specification.

    02

    No automatic substitutions

    Do not infer dual certification between S31803 and S32205. Heat treatment, phase balance and required corrosion tests need appropriate records.

    03

    Verify the finished part

    State the required chemical, mechanical, hardness and dimensional records. Request EN 10204 3.1 / 3.2, PMI or witness inspection where the project requires them; the quotation must identify the agreed scope.

    MATERIAL QUESTIONS

    Before you order

    YOUR SPECIFICATION. OUR SUPPLY NETWORK.

    Send the requirement.
    Get a defined supply route.

    For Duplex 2205 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

    Duplex 2205 — producer material reference

    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.