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    SAW Fluxes Stainless and Heat Resistant Steels: Basicity To Boniszewski

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    SungJun Park
    OP 76 is a fluoride-based flux for welding stainless and heat-resistant steels. It produces welds with low hydrogen and is suited for large welds. OP 76 allows for neutral silicon and manganese behavior and welding of steels to ELC quality. It is intended for processes like tandem welding and produces smooth welds at currents up to 800A.

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    SAW Fluxes Stainless and Heat Resistant Steels: Basicity To Boniszewski

    Uploaded by

    SungJun Park
    32 views3 pages
    OP 76 is a fluoride-based flux for welding stainless and heat-resistant steels. It produces welds with low hydrogen and is suited for large welds. OP 76 allows for neutral silicon and manganese behavior and welding of steels to ELC quality. It is intended for processes like tandem welding and produces smooth welds at currents up to 800A.

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    OP 76 is a fluoride-based flux for welding stainless and heat-resistant steels. It produces welds with low hydrogen and is suited for large welds. OP 76 allows for neutral silicon and manganese behavior and welding of steels to ELC quality. It is intended for processes like tandem welding and produces smooth welds at currents up to 800A.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    32 views3 pages

    SAW Fluxes Stainless and Heat Resistant Steels: Basicity To Boniszewski

    Uploaded by

    SungJun Park
    OP 76 is a fluoride-based flux for welding stainless and heat-resistant steels. It produces welds with low hydrogen and is suited for large welds. OP 76 allows for neutral silicon and manganese behavior and welding of steels to ELC quality. It is intended for processes like tandem welding and produces smooth welds at currents up to 800A.

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
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    OP 76

    SAW Fluxes
    Stainless and Heat resistant steels
    OP 76 is a special agglomerated, fluoride-basic type flux for welding stainless and heat-resistant steels when used in
    conjunction with wires according to AWS A5.9. In terms of weld metal C content, the behaviour of OP 76 can be described
    as neutral, thus if suitable wires are used, ELC quality steels may be welded.
    In terms of silicon and manganese, the metallurgical behaviour is neutral, i.e. there is neither pick-up nor burn-out.
    Manganese burn-out only occurs when wires with a high manganese content are used.
    OP 76 is intended for joint welding large cross-sections. It is one of the range of hydrogen-controlled fluxes, which deposit a
    weld metal with a low diffusible hydrogen content.
    OP 76 is particularly suited to tandem and multi-wire welding. Smooth welds with a good finish are deposited.
    Suitable for welding on both DC+ and AC at up to 800A.
    Damp flux should be re-dried at 300-350°C. Grain size in accordance with EN 760: 2-20.

    Wire Classification Wire Approvals Grades


    EN 760: SA FB 2 55 AC H5

    Flux Analysis Basicity to Boniszewski 2,7


    Al2O3 + MnO 20 %
    CaO + MgO 40 %
    CaF2 25 %
    SiO2 + TiO2 15 %

    475
    OP 76

    Typical Applications
    Wire Materials

    OE-20.16L
    EN:10 Ni 14 (1.5637)

    ASME: UNS N06600; UNS N08800; UNS N08810


    OE-S600
    EN: '2.4816; 1.4876; 1.4958

    ASME: UNS N06625; UNS N08825, A 353-70, A 553-70


    OE-S625
    EN: '2.4816; 1.4876; 1.4958

    ASME: Grade 91 (ASTM A 387), P 91 (ASTM A 335)


    OE-KV7M
    EN:X10CrMoVNb9-1

    ASME:AISI 304 - 304L - 302


    OE-308L
    EN:X 2 Cr Ni 18 9 (1.4306), X 2 Cr Ni 19 11 (1.4306), X 5 Cr Ni 18 8 (1.4301), 12 Ni 19 (1.5680)

    ASME: ASTM A351 Grades CF3M, CF3MA


    OE-316L
    EN:X 2 Cr Ni Mo 18 12 (1.4435), X 2 Cr Ni Mo 18 10 (1.4404), X 5 Cr Ni Mo 18 10 (1.4401)
    ASME: AISI 318L
    OE-318 EN:X 10 Cr Ni Mo Nb 18 10 (1.4580), X 10 Cr Ni Mo Ti 18 10 (1.4571), X 10 Cr Ni Mo Ti 18 12 (1.4573), X 10
    Cr Ni Mo Nb 18 12 (1.4583)
    ASME: ASTM A336 Grades F321, F347
    OE-347 EN:X 12 Cr Ni Ti 18 9 (1.4878), X 10 Cr Ni Ti 18 9 (1.4541), X 10 Cr Ni Nb 18 9 (1.4550), X 5 Cr Ni Nb 18 9
    (1.4543),

    ASME:A182 Grade F51, UNS S31803 - S31500 - S31200 - S32304


    OE-S 22 09
    EN:X 2 Cr Ni Mo N 22 5 8 (1.4462)

    OE-S 25 10
    EN:X 2 CrNiMoN 25 7 4 (1.4410)

    ASME: AISI 904L; URANUS B6;


    OE-904L
    EN: 1.4539 (X1NiCrMoCu25-20-5); 1.4439 (X2CrNiMoN17-13-5); 1.4537 (X1CrNiMoCuN25-25-5)

    Analysis of all-weld metal (Typical values in %)


    Wire C Mn Si Cr Ni Mo Nb N Cu
    OE-20 16L 0.03 - - 20 16 3 - 0.15 -
    OE-S600 0.03 - - 22 74 - 2.50 - -
    OE-S625 0.03 - - 23 60 10 3.50 - -
    OE-KV7M 0.13 1.10 - 9.50 1 1.20 0.30 0.07 0.25
    OE-308L 0.03 - - - 9 - - - -
    OE-316L 0.03 - - - 10 - - - -
    OE-318 0.07 - - - 10 - - - -
    OE-347 0.07 - - - 9 - - - -
    OE-S 22 09 0.03 - - 23 9 3 - 0.10 -
    OE-S 25 10 0.04 0.50 - 25 10 4 0.02 0.25 -
    OE-904L 0.025 - - 20 25 4.60 - 0.13 1.50

    476
    OP 76

    All-weld metal Mechanical Properties


    Yield Strength Tensile Elongation A5
    Wire Heat Treatment Strength
    N/mm2 (%)
    N/mm2
    OE-20.16L As Welded  410  600  30
    OE-S625 As Welded  450  760  23
    OE-KV7M PWHT 760°Cx4h  550  680  22
    OE-308L As Welded  350  550  35
    OE-316L As Welded  370  550  30
    OE-318 As Welded  370  600  30
    OE-347 As Welded  370  575  30
    OE-S 22 09 As Welded  550  750  25
    OE-S 25 10 As Welded  550  650  20
    OE-904L As Welded  380  560  35

    All-weld metal Mechanical Properties - Cv


    Heat Charpy V Notch Impact Toughness (J)
    Wire Treatment +20 0 - 20 - 30 - 40 - 60 - 80 - 101
    OE-20.16L As Welded 120 min - - - - - - -
    OE-S625 As Welded 60 min - - - - - - -
    OE-308L As Welded 75 min - - - - - - -
    OE-316L As Welded 75 min - - - - - - -
    OE-318 As Welded 65 min - - - - - - -
    OE-347 As Welded 65 min - - - - - - -
    OE-S 22 09 As Welded - - - - 90 min - - -
    OE-S 25 10 As Welded - - - - 50min - - -
    OE-904L As Welded 60 min - 70 min - - - - -

    Packaging data Current condition


    25kg heavy duty sealed polythene sacks DC+; AC
    Further forms of delivery on request.

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