STEELOMATIC – 309 MO L Back to Gallery

 

CLASSIFICATION IDENTIFICATION: Name Printed

 

AWS : 5.4
E – 309 Mo L – 16

DESCRIPTION AND APPLICATIONS:

STEELOMATIC – 309 Mo L is an extra low carbon all position electrode depositing radiographic quality 25Cr, 12 Nl, 2.5 Mo weld deposits. It has Superb operating features like smooth & Stable arc, easy to strike & restrike easily detachable slag. The weld has excellent resistance td intergranular corrosion. Typical application for welding wrought or cast steel of similar composition,. Overlay of Carbon steel, dissimilar steel, austenitic Mn steel, 316 clad Steel etc.


TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL (%)

C Mn Si Cr Ni Mo S P
0.025 2.0 0.48 23.5 12.5 2.50 0.015 0.030

 

TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL

 

UTS Kg/mm2 Elongation (L = 4d) %
60 40


WELDING CURRENT AND PACKING DATA: AC/DC (+)

SIZE D X L (mm) 2.5 x 350 3.15 x 450 4.0 x 350 5.0 x 350
CURRENT (AMPS) 50-80 80-100 110-140 140-180
PIECES / CARTON 80 60 40 30



PRECAUTIONS:

  • Use dry electrodes. Electrodes slightly affected by moisture should be carefully dried at temp 250-300°C for 1 hours before use.
  • Maintain short arc and employ welding current within the range recommended. Welding with excessive current results in increased spatter, undercut and uneven slag covering. Furthermore it adversely effects the quality of weld metal
  • Remove oil, grease, dust and rust from parent metal.