A350 · LF2 Class 1
For A350 · LF2 Class 1, astm specification is A350; class or grade is LF2 Class 1; esab preheat group is A; esab-recommended smaw (stick) filler is AA 7018-1; esab-recommended gmaw/gtaw filler is Group 1, recorded from its source on 2026-09-16.
- ASTM specification
- A350 verified
- Class or grade
- LF2 Class 1 verified
- ESAB preheat group
- A verified
- ESAB-recommended SMAW (stick) filler
- AA 7018-1 verified
- ESAB-recommended GMAW/GTAW filler
- Group 1 verified
- ESAB-recommended SAW (submerged arc) filler
- 10.62/SA 81 verified
- ESAB-recommended FCAW (gas-shielded flux-cored) filler
- Group 3 verified
- What that MIG group contains
- Spoolarc 29S, Spoolarc 82, Spoolarc 86, Spoolarc 87HP, Aristorod 12.50 verified
- What that Dual Shield group contains
- Dual Shield II 70T-12H4, Dual Shield T-5, Dual Shield T-75, Dual Shield II 712X, Dual Shield II 70-Ni1 H4 verified
- Suggested preheat, low hydrogen (H8 and less), by thickness
- T < .75: 70, .75 < T < 1.5: 70, 1.5 < T < 2.5: 150, T > 2.5: 225 our reading
- Suggested preheat, hydrogen above H8, by thickness
- T < .75: 175, .75 < T < 1.5: 225, 1.5 < T < 2.5: 275, T > 2.5: 300 our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
A350 LF1, LF2 Class 2 A AA 7018/7018 Acclaim, SW 7014 Group 1 LF2 Class 1 A AA 7018-1 Group 1
— assets.esab.com, retrieved 2026-09-16
Where each value comes from
This source states these in separate places, so each value is shown with the passage that states it.
ESAB-recommended SAW (submerged arc) filler and ESAB-recommended FCAW (gas-shielded flux-cored) filler
10.62/SA 81 Group 3
What that MIG group contains
MIG Group 1 Spoolarc 29S, Spoolarc 82, Spoolarc 86, Spoolarc 87HP, Aristorod 12.50
What that Dual Shield group contains
Dual Shield Group 1 Dual Shield R-70 Ultra, Dual Shield 710X, Dual Shield 710 XM, Dual Shield 7100LC, Dual Shield 7100 Ultra, Dual Shield 70 Ultra Plus Group 2 Dual Shield II 70 Ultra, Dual Shield II 71 Ultra, Dual Shield II 711X Group 3 Dual Shield II 70T-12H4, Dual Shield T-5, Dual Shield T-75, Dual Shield II 712X, Dual Shield II 70-Ni1 H4 Group 4 - Dual Shield 111RB, Dual Shield 700X
Suggested preheat, low hydrogen (H8 and less), by thickness and Suggested preheat, hydrogen above H8, by thickness
Preheat A B C D Low Hydrogen H8 and less T < .75 70 70 200 300 .75 < T < 1.5 70 125 300 400 1.5 < T < 2.5 150 200 300 400 T > 2.5 225 300 350 500 Hydrogen > H8 T < .75 175 175 NR NR .75 < T < 1.5 225 225 NR NR 1.5 < T < 2.5 275 275 NR NR T > 2.5 300 300 NR NR
— all from assets.esab.com, retrieved 2026-09-16
Source
- assets.esab.comhttps://assets.esab.com/assetbank-esab/assetfile/22174.pdf