Page 136 - Welder - TT - Punjabi

FIVE DIGITS CODIFICATION

Electrode  E
1
1
Tensile strength
110,000 psi.  0

All position  1
electrode

Low hydrogen lime  8
plus iron powder

*To get the tensile strength of the weld in p.s.i., the number given
here should be multiplied by 1000.

CHART 2 (BS 639 : 1976 equivalent to ISO 2560)

COVERING 4 ELECTRODE
EFFICIENCY
AA cid (iron oxide) 5
AR Acid (rutile)
BB asic % recovery
STRENGTH 2 CC ellulosic to nearest
OO xidising 10% (> 110)
ElectrodeT ensile Minimum yield RR utile (medium coated)
designation strengths tress. N/mm 2 RR Rutile (heavy coated) (H) 8
N/mm 2 SO ther types Indicates
E43 430.5503 30 hydrogen
E515 10.6503 60 controlled
(> 15mg/100g)
Example (b) E 51 33 B1 60 20 (H)

1234567 8
PROCESS
1

Covered WELDING POSITION 6
MMA 1A ll positions
electrode 2A ll positions except vertical down
3F lat and, for fillet welds, horizontal vertical
4F lat
5 Flat, vertical down and, flat fillet welds, horizontal
vertical
6A ny position or combination of positions not
classified above.

114 CG & M : ਿੈਲਡਰ (NSQF ਸੰ ਸ਼ੋਵਧਤ - 2022) ਅਵਿਆਸ ਲਈ ਸੰ ਬੰ ਵਧਤ ਵਸਧਾਂਤ 1.3.48