COATING TYPE - Basic
EN ISO 3581-A-Е 18 8 Mn B 2 2 |
AWS А 5.4:Е307-15 |
Special properties:
- deposited metal is characterized by high heat resistance up to 850 C.
- deposition rate factor: 13,0…13,5 g/А·hour;
- consumption of electrodes per 1 kg of deposited metal: 1,3…1,5 kg.
PURPOSE AND SCOPE OF APPLICATION
Monolith М-307 is a universal austenite electrode which designed for a variety of applications such as welding of "difficult-to-weld" steels, dissimilar welding, repair and maintenance, as well as deposition of transition layers before the application of wear-resistant layers. The metal deposited by the electrodes Monolith М-307 provides exceptionally high ductility and elongation along with excellent crack resistance. Good resistance to embrittlement at operating temperatures of up to 650ºC.
Terms of use:
- they are used for welding in all spatial positions, except vertical down one with direct current of reverse polarity (+ on electrode).
Re-drying before welding:
- the permissible moisture content in the coating before use is not more than 0,3 %;
- if the electrode coating is moistened above normal, dry for 60 minutes at 280-300°С.
WELD METAL CHEMICAL COMPOSITION, %
Mn |
Si |
C |
P |
S |
Cr |
Ni |
6,0-7,0 |
0,6-0,9 |
0,05-0,14 |
≤ 0,030 |
≤ 0,010 |
18,0-19,5 |
8,0-9,5 |
WELD METAL MECHANICAL PROPERTIES
Tensile Strength, MPa |
Yield Strength, MPa |
Elongation, % |
Impact energy KV 20˚С, J |
≥500 |
≥350 |
≥25 |
≥70 |
PACKAGING DATA / WELDING PARAMETERS
Diameter, mm |
Length, mm |
Welding current strength, A |
Number of electrodes in a pack, pcs. |
Pack weight, kg |
2,5 |
350 |
70 - 110 |
53...55 |
1,0 |
3,0 |
350 |
80 - 120 |
37...39 |
1,0 |
3,2 |
350 |
100 - 140 |
34...36 |
1,0 |
4,0 |
350 |
120 - 160 |
20...22 |
1,0 |
Welding should be carried out with direct current of the reverse polarity, "+" on the electrode with an arc voltage of 23…27 V or with alternating current from a transformer with an idle voltage of 50 V.
WELDING POSITIONS
ISO 6947