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Hilchrome 309MoR welding electrodes E309LMo-17 - E 23 12 2 LR 32
Hilchrome 309MoR is a rutile coated electrode for joining similar and dissimilar steels, buffering, joining hardenable and difficult-to-weld steels. Typical applications include joining high strength steels, un- and low alloyed structural steels and heat treatable steels. The electrode is suitable for joining clad steels. The Mo-alloyed electrode has an increased FN content (FN ~20) ensuring maximum cracking resistance. Hilchrome 309MoR is a core wire alloyed all-current type (AC/DC).
Standards
- AWS A5.4: E309LMo-17
- NEN-EN ISO 3581-A: E 23 12 2 L R 3 2
- Working material number: 1.4459
Type of coating
- Rutile
Current type
- AC/DC
Welding positions
- All positions, except vertical downward
Basic materials to be welded
- Bonding of similar and dissimilar unalloyed steels, alloyed structural steels and heat treatable steels
- Unalloyed and low alloyed boiler steels, CrNi(Mo) steels
- Combinations of ferritic and austenitic steels
- First layer in CrNiMocladdings such as AISI 316L and similar austenitic stainless steels
- Bonding of dissimilar materials
Applications
- Power generation
- Repairs and maintenance
- Oil and gas industry
- Processing industry
Chemical composition
- Carbon (C): 0.02%
- Manganese (Mn): 0.8%
- Silicon (Si): 0.7%
- Chromium (Cr): 23.0%
- Nickel (Ni): 12.5%
- Molybdenum (Mo): 2.7%
Mechanical properties
- Condition: As welded
- 0.2% Yield strength: ≥ 490 MPa
- Tensile strength: ≥ 630 MPa
- Elongation Lo = 5d: ≥ 25%
- Impact values:
- 20 ºC: ≥ 47 J
- -20 ºC: ≥ 32 J
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