Electrodes for mild and low-alloy steels

OK 46.00; OK 46.16; OK 48.00; OK 48.60; OK 50.40; OK 55.00 Electrodes ESAB

OK 46.00

OK 46.00 is the best, all-round, rutile electrode and it is relatively insensitive to rust or other surface impurities. It deposits smooth weld beads in all positions, including vertical down, and the slag is easy to remove. OK 46.00 is very easy to strike and restrike, making it ideal for short welds, root runs and tacking.

Typical all weld metal composition, %:

  • C – 0.07
  • Si – 0.4
  • Mn – 0.5

Welding current: DC+(-)
Yield stress: 400 MPa
Tensile strength: 510 MPa
Elongation: 28 %
Classifications: AWS A5.1: Е 6013 (DIN 1913): (Е 4332R(C) 3);  ISO 2560: Е 43 3 R 11; EN 499: E 38 RC 11

Approvals:

  • ABS  2                   PL,SF
  • BKI   2                   PL
  • BV    2                   PL,SF
  • CE EN 13479        HG,PL,SA,SB,SF
  • ClassNK KMW2   PL
  • DB 10.039.05      HG,PL,SA,SF
  • DNV 2                   PL,SF
  • GL 2                      PL,SF
  • LR 2                       PL,SF
  • NAKS/HAKC        HG,SA
  • RRR 2                   SA
  • RS 2                      G,SA
  • VdTÜV 00623     HG,PL,SA,SF

OK 48.00

A reliable, general purpose, LMA electrode for mild and low-alloy steels. OK 48.00 deposits a tough, crack-resistant weld metal. High welding speed in the vertical-up position. OK 48.00 is insensitive to the composition of the base material within fairly wide limits. The electrode can be used for welding structures where difficult stress conditions cannot be avoided.

Typical all weld metal composition, %:

  • C – 0.07
  • Si – 0.5
  • Mn – 1

Yield stress: 445 MPa
Tensile strength: 540 MPa
Elongation:29 %
Classifications: SFA/AWS A5.1 E7018; EN ISO 2560-A E 42 4 B 42 H5

Approvals:

  • ABS       3Y H5
  • BV          3Y H5
  • CE EN    13479
  • DB           10.039.12
  • DNV        3Y H5
  • GL            3Y H5
  • LR            3Ym H5
  • PRS          3Y H5
  • RS             3Y H5
  • VdTÜV    00690

OK 48.60

General- purpose basic DC + electrode for mild and low alloy steels. Very good running characteristics.

Typical all weld metal composition, %:

  • C – 0.07
  • Si – 0.5
  • Mn – 1

Yield stress: 445 MPa
Tensile strength: 540 MPa
Elongation: 29 %
Classifications: SFA/AWS A5.1 E7018; EN ISO 2560-A E 42 4 B 42 H5

Approvals:

  • ABS       3Y H5
  • BV          3Y H5
  • CE EN    13479
  • DB           10.039.12
  • DNV        3Y H5
  • GL            3Y H5
  • LR            3Ym H5
  • PRS          3Y H5
  • RS             3Y H5
  • VdTÜV    00690

OK 50.40

OK 50.40 is an all-round electrode for the positional welding of mild steel, also well suited for pipe welding. It is particularly good for welding in the vertical-up position and for welding root runs.

Typical all weld metal composition, %:

  • C – 0.07
  • Si – 0.2
  • Mn – 0.5

Yield stress: 450 MPa
Tensile strength: 540 MPa
Elongation: 24 %
Classifications: SFA/AWS A5.1E6013 EN 499E 42 2 RB 12; ISO 2560 Е 51 4 RR 24

Approvals:

  • DB                       10.039.14
  • GL                       2
  • LR                        2
  • UDT-EN 499     Е 42 2 RB 12
  • VdT

OK 55.00

OK 55.00 is a reliable, high-quality, LMA electrode, particularly suitable for welding high strength low-alloy steels. The good, low-temperature impact strength of the weld metal should be noted. The weld metal is also very resistant to hot cracking. The electrode is also suitable for welding high strength ships steel, grades A, D and E.

Typical all weld metal composition, %:

  • C – 0.08
  • Si – 0.5
  • Mn – 14

Yield stress: 480 MPa
Tensile strength: 590 MPa
Elongation: 28 %
Classifications: AWS А5.1:Е 7018-1 (DIN 8529): (EY 46 66 Mn B) (DIN 1913): (Е 51 55 В 10 125); ISO 2560: Е 51 5В 120 26Н EN 499: Е 46 5 В 32

Approvals:

  • ABS         3H5, 3Y
  • BV            3YH5
  • CE EN      13479
  • DB            10.039.03
  • DNV        4YH5
  • GL            3YH5
  • LR            3Y H5
  • RS            3YH5
  • VdTÜV    00632

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