Welding electrodes Monolith M-309L-16

AWS А5.4 / SFA-5.4: Е309 / Е309L-16
CSA W48:E309L-16
EN ISO 3581-А- E 23 12 L R 1 2
Terms of use
  • welding in all spatial positions, except vertical down one
  • welding is recommended to be performed at the highest possible speed without transverse oscillations of the electrode
Special properties
  • good welding and technological properties, low spatter, easy slag removal, stable arc burning and excellent seam quality
  • when welding dissimilar steels, high crack resistance is provided and high resistance to intergranular corrosion is noted when working at a temperature of up to 300°C (572°F). As well as when welding heat-resistant stainless steels, high resistance to scale formation is provided in the operating temperature range up to 900°C (1652°F)
Monolith M-309L-16 electrodes are designed for dissimilar welding of austenitic and carbon steels, austenitic stainless steels of such grades as AISI 304, AISI 304L, etc., in the operating temperature range not exceeding 300°C (572°F), as well as for welding of heat-resistant stainless steels such as AISI 309, AISI 309S, etc. They are used for depositing intermediate layers on heat-resistant CrMo pearlitic steels and for cladding of ferriticpearlitic, low and medium alloyed substrates as well as for applying buffer layers prior to overlaying. These electrodes are suitable for welding of tanks, containers used for storing a wide variety of liquids and dry substances, industrial equipment in the mining, chemical, cryogenic, food, dairy and pharmaceutical industries.
Packaging data
Diameter, mm (in)Length, mm (in)Number of electrodes in a pack, pcs.Weight of the pack, kg (lb)
2,0 (5/64)300 (11,8)91 – 931 (2.2)
2,5 (3/32)350 (13,8)43 – 461 (2.2)
3,0 (1/8)350 (13,8)30 – 321 (2.2)
3,2 (1/8)350 (13,8)28 – 311 (2.2)
4,0 (5/32)350 (13,8)18 – 191 (2.2)
1 kg (2.2 lb) cardboard pack
20 packs per 20 kg (44 lb) cardboard box
50 cardboard boxes per 1 pallet
1000 kg (2200 lb) per 1 pallet
Coating type
rutile
CHEMICAL COMPOSITION OF DEPOSITED METAL, %
According to AWS A5.1 / Typical Results
C
Carbon
0.002
Mn
Manganese
1.15
Si
Silicon
0.7
P
Phosphorus
0.021
S
Sulfur
0.02
Cr
Chromium
22.66
Ni
Nickel
12.92
Mo
Molybdenum
0.017
Cu
Copper
0.05
WEDGE METAL MECHANICAL PROPERTIES
According to AWS A5.1 / Typical Results
  • Tensile strength, MPa 520 - 600 (75 - 87)
  • Yield point, MPa 370 - 490 (54 - 71)
  • Relative elongation, % 30 - 50
Baking before welding
  • the permissible moisture content in the coating before use is not more than 0.2 %;
  • if the electrode coating is moistened above normal, dry for 60 minutes at 400±10°С (752±50°F)
Welding modes
 Welding current strength, A for electrodes with a diameter of, mm (in)
2.0 (5/64)2.5 (3/32)3.0 (1/8)3.2 (1/8)4.0 (5/32) 
40 – 6060 – 9070 – 10080 – 11090 – 130

Welding Current: AC, DC+. Arc voltage of 23 – 27 V

Position of seams during welding
PA
PB
PC
PF
PE
PD