A334 · Grade 1 & 6
For A334 · Grade 1 & 6, astm specification is A334; class or grade is Grade 1 & 6; esab preheat group is A; esab-recommended smaw (stick) filler is SW 10P (root pass only), AA 7018/7018 Acclaim; esab-recommended gmaw/gtaw filler is Group 1, recorded from its source on 2026-08-31.
- ASTM specification
- A334 verified
- Class or grade
- Grade 1 & 6 verified
- ESAB preheat group
- A verified
- ESAB-recommended SMAW (stick) filler
- SW 10P (root pass only), AA 7018/7018 Acclaim verified
- ESAB-recommended GMAW/GTAW filler
- Group 1 verified
- What that MIG group contains
- Spoolarc 29S, Spoolarc 82, Spoolarc 86, Spoolarc 87HP, Aristorod 12.50 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
A334 Grade 1 & 6 A SW 10P (root pass only), AA 7018/7018 Acclaim Group 1
— assets.esab.com, retrieved 2026-08-31
Where each value comes from
This source states these in separate places, so each value is shown with the passage that states it.
What that MIG group contains
MIG Group 1 Spoolarc 29S, Spoolarc 82, Spoolarc 86, Spoolarc 87HP, Aristorod 12.50
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 2026-08-31
Source
- assets.esab.comhttps://assets.esab.com/assetbank-esab/assetfile/22174.pdf