E9018-B3

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Class: E9018-B3
AWS: 5.5

Conforms to Certification:  AWS A5.5 | ASME SFA 5.5

Weld Process: Shielded Manual Metal Arc Electrodes

AWS Chemical Composition   Requirements
C = 0.05 – 0.12 S = 0.030 max
Mn = 0.90 max Cr = 2.00 – 2.50
Si = 0.60 max Mo = 0.90 – 1.20
P = 0.030 max

Description:

DuraMax E9018-B3 is a medium heavy coated, hydrogen controlled, iron powder type, all position radiographic quality electrode to weld 2.25% Cr – 1.00% Mo steel, having increased working efficiency. Electrode has properties of creep resistance up to 575°C.

Typical Application & Usage:
  • Suitable to weld high tensile.
  • Low alloy steels with 2.25% Cr and 1.00% Mo used in oil refinery / power plants, steam boilers.
  • Equipment subject at high temperatures in synthetic chemical units.
  • Repairs of cast steel components.
  • Parts of automobiles / earth-moving machinery.
  • Includes marine applications..
RE-DRY CONDITIONS: Re-Dry the electrode at 250°C for 1 hour before use.
Deposited All Weld Metal Properties % (Typical) As Welded
Tensile Strength 620 – 700 MPa
Yield Strength 530 – 630 MPa
Elongation in 2″ 20 – 25%
Recommended Welding Parameters
Diameter Amperage
3/32″     60 – 80
1/8″   100 – 140
5/32″   140 – 180
3/16″   190 – 240

POLARITY: DCEP
DCEP: DC, Electrode Positive (reverse polarity) has the most weld penetration
WELDING POSITIONS: Flat, Horizontal, Overhead, Vertical-up and Vertical-down positions
USE LESS AMPS ON THIN METAL; MORE AMPS ON THICK METALS