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    Product Data Sheet OK 75.75: E 'Manual Metal-Arc Welding' ESAB Perstorp AB Sweden

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    KARL
    This product data sheet provides information on electrode OK 75.75 for manual metal-arc welding of high-strength, low-alloy steels. The electrode gives a weld metal with a high yield-to-tensile strength ratio and can be used to weld steels like USS T-1. It has mechanical properties including minimum yield strength of 690 MPa, tensile strength between 770-900 MPa, and 18% minimum elongation. Charpy V-notch impact tests on welds in 12mm USS T-1 steel show absorbed energies ranging from 23-70 J depending on test temperature and whether the weld was as-welded or stress relieved.

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    Product Data Sheet OK 75.75: E 'Manual Metal-Arc Welding' ESAB Perstorp AB Sweden

    Uploaded by

    KARL
    47 views3 pages
    This product data sheet provides information on electrode OK 75.75 for manual metal-arc welding of high-strength, low-alloy steels. The electrode gives a weld metal with a high yield-to-tensile strength ratio and can be used to weld steels like USS T-1. It has mechanical properties including minimum yield strength of 690 MPa, tensile strength between 770-900 MPa, and 18% minimum elongation. Charpy V-notch impact tests on welds in 12mm USS T-1 steel show absorbed energies ranging from 23-70 J depending on test temperature and whether the weld was as-welded or stress relieved.

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    OK 75.75

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    This product data sheet provides information on electrode OK 75.75 for manual metal-arc welding of high-strength, low-alloy steels. The electrode gives a weld metal with a high yield-to-tensile strength ratio and can be used to weld steels like USS T-1. It has mechanical properties including minimum yield strength of 690 MPa, tensile strength between 770-900 MPa, and 18% minimum elongation. Charpy V-notch impact tests on welds in 12mm USS T-1 steel show absorbed energies ranging from 23-70 J depending on test temperature and whether the weld was as-welded or stress relieved.

    Copyright:

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

    Product Data Sheet OK 75.75: E 'Manual Metal-Arc Welding' ESAB Perstorp AB Sweden

    Uploaded by

    KARL
    This product data sheet provides information on electrode OK 75.75 for manual metal-arc welding of high-strength, low-alloy steels. The electrode gives a weld metal with a high yield-to-tensile strength ratio and can be used to weld steels like USS T-1. It has mechanical properties including minimum yield strength of 690 MPa, tensile strength between 770-900 MPa, and 18% minimum elongation. Charpy V-notch impact tests on welds in 12mm USS T-1 steel show absorbed energies ranging from 23-70 J depending on test temperature and whether the weld was as-welded or stress relieved.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
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    of 3

    Product Data Sheet OK 75.

    75
    E 'Manual metal-arc welding'
    ESAB Perstorp AB Sweden
    Prepared by Qualified by Approved by Reg no Cancelling Reg date Page

    A-C Thorsson Tero Borg J-P Ernoult EN007079 EN006925 2016-02-17 1 (3)

    REASON FOR ISSUE


    Typical mechanical values amended.

    GENERAL
    Electrode giving a weld metal of high yield strength/tensile strength ratio, for welding high tensile low-alloy
    steels, e g USS T-1.

    Polarity: DC+ Alloy Type: Low alloy steel


    Coating Type: Lime Basic
    Diff Hydrogen: <5.0 ml/100g

    WELDING POSITIONS

    1 2 3 4 6

    CLASSIFICATIONS Electrode APPROVALS


    SFA/AWS A5.5 E11018-G ABS E11018-G
    EN ISO 18275-A E 69 4 Mn2NiCrMo B 42 H5 CE EN 13479
    DB 10.039.19
    VdTÜV 01028
    APPROVALS (SPECIFIC)
    Seproz UNA 272580

    CHEMICAL COMPOSITION
    All Weld Metal (%)
    Min Max
    C 0.03 0.08
    Si 0.15 0.55
    Mn 1.5 2.0
    P 0.020
    S 0.020
    Cr 0.30 0.60
    Ni 2.0 2.6
    Mo 0.30 0.60
    V 0.05
    Nb 0.05
    Cu 0.30
    Product Data Sheet OK 75.75
    E 'Manual metal-arc welding'
    ESAB Perstorp AB Sweden
    Prepared by Qualified by Approved by Reg no Cancelling Reg date Page

    A-C Thorsson Tero Borg J-P Ernoult EN007079 EN006925 2016-02-17 2 (3)

    MECHANICAL PROPERTIES OF WELD METAL

    ISO AWS

    As welded As welded
    Properties Min Max Typ Min
    Rp0.2 (MPa) 690 780 670
    Rm (MPa) 770 900 830 760
    A4 (%) 15
    A5 (%) 18 20

    Charpy V at -40°C (J) 47 60


    Comments: Comments:
    EN standard requires Rm between 760 and
    960 MPa ; A5 Min 17%.

    ECONOMICS & CURRENT DATA


    Dimension (mm) Current (A)
    -
    W η N B H T U Welding
    -
    Ø x Length Min Max Positions
    2.5 x 350 70 110 2.3 125 0.67 66.0 1.00 54 22 1,2,3,4,6
    3.2 x 450 100 150 4.9 125 0.67 31.5 1.40 80 23 1,2,3,4,6
    4.0 x 450 135 200 7.4 120 0.65 21.0 1.90 92 24 1,2,3,4,6
    5.0 x 450 180 260 11.4 120 0.63 12.0 2.50 105 25 1,2,3
    W = Weight (kg / 100 electrodes)
    η = Efficiency (g weld metal x 100 / g core wire)
    N = Effective value (kg weld metal / kg electrodes)
    B = Changes (number of electrodes / kg weld metal)
    H = Deposit rate at 90% of max current (kg weld metal / hour arc time)
    T = Fusion time at 90% of max current (s / electrode)
    U = Arc voltage (V)
    Product Data Sheet OK 75.75
    E 'Manual metal-arc welding'
    ESAB Perstorp AB Sweden
    Prepared by Qualified by Approved by Reg no Cancelling Reg date Page

    A-C Thorsson Tero Borg J-P Ernoult EN007079 EN006925 2016-02-17 3 (3)

    OTHER DATA
    Welding and heat treatment conditions:
    All-weld specimens, welded at 150 °C interpass temperature.
    As welded:
    (+100 °C) :....... Rp0.2= 745 MPa, Rm= 780 MPa, A5= 18%, Z= 61%
    (+200 °C) :....... Rp0.2= 730 MPa, Rm= 740 MPa, A5= 16%, Z= 55%
    (+300 °C) :....... Rp0.2= 715 MPa, Rm= 760 MPa, A5= 18%, Z= 50%
    (+400 °C) :....... Rp0.2= 670 MPa, Rm= 750 MPa, A5= 18%, Z= 58%

    Stress relieved at 620 °C, 1h:


    (+100 °C) :.. Rm= 780 MPa
    (+200 °C) :.. Rm= 780 MPa
    (+300 °C) :.. Rm= 850 MPa
    (+400 °C) :.. Rm= 800 MPa

    Normalized at 920 °C, 1 h, air-cooled:


    Rp0.2= 490 MPa, Rm= 740 MPa, A5= 18%, Z= 60%

    Hardened tempered, 925 °C, water, 625 °C, 1 h, air-cooled:


    Rp0.2= 730 MPa, Rm= 800 MPa, A5= 18%, Z= 63%
    ......................................................................................................................................................................
    Weld in 12mm steel of the type USS T 1:
    Charpy V, As welded:
    +20 °C:...... 63 J (Horizontal) and 70 J (Vertical-up)
    - 20 °C:...... 38 J (Horizontal) and 42 J (Vertical-up)
    - 40 °C:...... 31 J (Horizontal) and 24 J (Vertical-up)

    Charpy V, Stress relieved:


    +20 °C:. 56 J (Horizontal) and 55 J (Vertical-up)
    - 20 °C:. 31 J (Horizontal) and 28 J (Vertical-up)
    - 40 °C:. 23 J (Horizontal) and 21 J (Vertical-up)
    ......................................................................................................................................................................

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