Page 137 - Welder - TT - Bengali

উদাহরণ 1

The classification for the electrode EB 5426H1JX
Example 1

The classifi cation for the electrode EB 5426H1JX

E B 5 4 2 6 H J X
1

Covered electrode
Type of covering (Basic)
Strength characteristics (UTS = 510–610 N/mm and
2
YS = 360 N/mm min.)
2
Elongation and impact properties (Elongation = 20% min. and
IMPACT = 27 J min. at – 30°C)
Welding position (all positions except vertical down)
Welding current and voltage condition (D + and A 70)
Hydrogen controlled electrodes (15 ml max.)

Increased metal recovery (110 – 129%)
Radiographic quality electrode

Example 2

The classifi cation for the electrode ER 4211

E R 4 2 1 1

Covered electrode
Type of covering (Rutile)

Strength characteristics (UTS = 410 – 510 N/mm 2
and YS = 330 N/mm min.)
2
Elongation and impact properties (Elongation = 22% min. and
impact = 47 J min. at 0°C)
Welding position (all positions)
Welding current and voltage conditions (D ± and A 50)

CG&M : ওেয় ার (NSQF - সংেশািধত 2022) - অনুশীলেনর জন স িক ত এ ারসাইজ 1.3.48 115