1161 – 7018 Moisture Resistant Low Hydrogen

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INTERNATIONAL CLASSIFICATIONS

AWS/ASME A 5.1 E 7018-1

EN 499: E 42 4 B 12 H5

DIN 1913: E51 54B R 10

ISO 2560: E51 5B120 26H

NFA 81-309: E515/4 B 120 26 BH

BS 639: E 5154 B 120 26 (H)

FEATURES & APPLICATIONS

For joining and repairing boiler plate, pipe steels, shipbuilding steels and cast steels. Excellent for weathering steels, such as “Corten”.

  • Extra low hydrogen – Moisture resistant steel electrode for unalloyed construction steels.
  • Only low hydrogen alloy made in 1/16 (1.6mm) size.
  • Extremely smooth – spatter and turbulence free arc transfer.
  • Coating is totally non-conductive.
  • Unusually good AC welding characteristics.
  • Easy re-strike.
All Weld Metal Analysis (Typical Weight %)

Microstructure: In the stress-relieved condition, the microstructure consists of acicular ferrite with some tempered bainite.

Flux Color: Tan/grey

CMnSiSPMoFe
.04.90.60.013.018.40Bal.
Typical Mechanical Properties

Undiluted Weld Metal Maximum Value Up to:

Tensile Strength: 84,000 psi (610 MPa)

Yield Strength: 69,000 psi (500 MPa)

Elongation: 32%

Impact Energy 90J: -30°C

Welding Current & Instructions

Recommended Current: DC Reverse (+) or AC

Diameter (mm)1/16 (1.6)3/32 (2.5)1/8 (3.25)5/32 (4.0)3/16 (5.0)
Minimum Amperage3065100140190
Maximum Amperage45100140190250

Welding Techniques: Remove all surface contaminants. Maintain a short arc gap and use a stringer or slight weave technique. Chip slag thoroughly between passes.

Welding Positions: Flat, Vertical up, Vertical down, Horizontal, Overhead

Deposition Rates:

Diameter
(mm)
Length
(mm)
Weldmetal/
Electrode
Electrodes per lb (kg) of WeldmetalArc Time of Deposition min/lb (kg)Amperage Settings
1/16 (1.6)12″ (300).13oz (49g)120 (264)59 (129)35
3/32 (2.5)14″ (350).42oz (12g)38 (83)38 (84)80
1/8 (3.2)14″ (350).59oz (17g)27 (60)21 (47)115
5/32 (4.0)14″ (350)1.1oz (30g)15 (32)18 (39)175
3/16 (5.0)14″ (350)1.8oz (50g)9 (20)13 (28)220
APPROXIMATE ELECTRODE PACKAGING & DIMENSIONS
Diameter (mm)1/16 (1.6)3/32 (2.5)1/8 (3.25)5/32 (4.0)3/16 (5.0)
Length (mm)12″ (300)14″ (350)14″ (350)14″ (350)14″ (350)
Electrodes / lb54211286
Electrodes / kg11946261813