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Low Hydrogen Welding Electrodes
Brand Name:- B&H-7016
A Medium Coated Basic Type Hydrogen Controlled Electrode
Codification : IS: EB 5426 H2X AWS: E 7016
Applications: The wide range of materials include carbon steels and cast iron. Some of the applications are boilers, pumps and compressor, offshore drilling rigs & platforms, pressure vessels, earth moving machinery, rotary kiln shells, cast irons etc. Can also be used as buffer layer on hard and work hardened steel, components.
Characteristics / Features:
B & H-7016 is a medium coated basic type hydrogen controlled electrode producing a tough and ductile weldmetal.
* Ease of operation in all positions.
* Smooth and stable arc which is easy to strike and restrike.
* Easy deslagging.
* Finally ripped bead with regular profile.
* X-ray quality welds.
* Weldmetal possess excellent mechanical properties and is highly resistant to cracking.
Chemical Analysis of all Weld Deposit (%):
C Mn Si S P
0.10 max 0.80-1.40 0.40-0.60 0.03 max 0.03 max
All Weld Mechanical Properties:
UTS Yeild Strength Elongation (L=5d) CVN Impact at 27o C
N/mm2 N/mm2 % Nm
510-610 450 26-35 90
Welding Current Ranges for Size Manufactured:
Dia (mm) 2.5 3.15 4.0 5.0
L (mm) 350 350/450 450 450
Current (Amp) (AC or DC-) 70-100 90-140 140-190 190-250
Precautions: Ensure that electrodes are dry. Redry electrodes for 1 hr at 250oC to 300oC and then keep them in holding oven maintained at 80oC-100oC, prior to use. Keep the arc as short as possible and minimize weaving. Clean the weld area of any surface contamination.