A668 · K, KH
For A668, class or grade is K, KH; esab preheat group is C; esab-recommended smaw (stick) filler is AA 11018; esab-recommended gmaw/gtaw filler is SA 95; esab-recommended saw (submerged arc) filler is 10.62/SA 95, recorded from its source on 2026-09-16.
- ASTM specification
- A668 verified
- Class or grade
- K, KH verified
- ESAB preheat group
- C verified
- ESAB-recommended SMAW (stick) filler
- AA 11018 verified
- ESAB-recommended GMAW/GTAW filler
- SA 95 verified
- ESAB-recommended SAW (submerged arc) filler
- 10.62/SA 95 verified
- ESAB-recommended FCAW (gas-shielded flux-cored) filler
- DS II 100 verified
- Suggested preheat by thickness, low hydrogen (H8 and less) — the A-D column for this grade's preheat group
- T < .75: 200, .75 < T < 1.5: 300, 1.5 < T < 2.5: 300, T > 2.5: 350 our reading
- Suggested preheat by thickness, hydrogen above H8 — the A-D column for this grade's preheat group
- T < .75: NR, .75 < T < 1.5: NR, 1.5 < T < 2.5: NR, T > 2.5: NR 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
A668 A, AH, B, BH, C, CH, B AA 7018/7018 Acclaim Group 1 D, DH, E, EH, G, GH B AA 8018 SA 75/83 F, FH, H, HH, J, JH C AA 9018 SA 83 K, KH C AA 11018 SA 95
— 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 it comes from.
ESAB-recommended SAW (submerged arc) filler and ESAB-recommended FCAW (gas-shielded flux-cored) filler
The source prints these values inside the passage below but does not name them there. The passage shows where each one appears; what ties them to this record is the position on the page, not anything the passage says.
10.62/SA 95 DS II 100
Suggested preheat by thickness, low hydrogen (H8 and less) — the A-D column for this grade's preheat group and Suggested preheat by thickness, hydrogen above H8 — the A-D column for this grade's preheat group
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