AWS A5.5 E8018-B2 H4

EN ISO 3580-B-E5518-1CM H5

JIS Z 3223 E5518-1CM H5

Characteristics and Application

AWS A5.5 E8018-B2 H4 Welding rods, welding electrode is an iron powder low hydrogen electrode. The weld metal contains 1.25%Cr0.5%Mo that makes the electrodes more efficient at 550℃, With the characters of stable arc, little spatter, complete slag covering, low hydrogen content and low impurity, it's suitable for the welding of steel tube for heat transfer of boiler (STPA22,23, A335-P11 ,P12, Al 99T11 , A200T11 A213T11 12), drawing steel (A387Gr11 12), casting iron (A217-WC6), and forging and forging steel (Al 82-FII 2).

Typical chemical Composition of Weld Metal (%)

Typical Mechanical Properties of Weld Metal

Welding Positions:

Notes on usage:

1. Clean up the contaminations on the base metal and welding seam so as not to derogate the weld metal quality from particles.
2. Dry the electrodes at 350-400℃ for 60 minutes before using.
3. Use back-step method to prevent arc starting from blowholes and hold for 3-5 seconds at every end—up.
4. Maintain short arc length. Moving range should be controlled within 3 times of the wire's dia when you are welding with weave method..
5. Do not exceed the range of recommended current. Over heat input might decrease the impact value.

C 0.082  Mn 0.65  Si 0.18  P 0.010  S 0.007 Cr 1.1  Mo 0.50 

Yield strength 560Mpa  Tensile Strenght 630MPa  Elongation 26% Charpy V-Notch -20 ℃ 90J PWHT 690℃X1hr

Welding rods, welding electrode