Reference Source

A409 · TP304

For A409 · TP304, astm specification is A409; class or grade is TP304; esab-recommended smaw (stick) filler is AR 308/308H/308L, OK 61.25; esab-recommended gmaw/gtaw filler is Autrod/Tigrod 308H/308L/308LSi; esab-recommended fcaw (gas-shielded flux-cored) filler is SB 308H/308L, verified against its source on 2026-09-16.

ASTM specification
A409 verified
Class or grade
TP304 verified
ESAB-recommended SMAW (stick) filler
AR 308/308H/308L, OK 61.25 verified
ESAB-recommended GMAW/GTAW filler
Autrod/Tigrod 308H/308L/308LSi verified
ESAB-recommended FCAW (gas-shielded flux-cored) filler
SB 308H/308L verified
ESAB-recommended FCAW (self-shielded flux-cored) filler
CB 308L verified
ESAB-recommended MCAW (metal-cored) filler
AR MC308L verified
Sourceassets.esab.com
Verified
Review by
DatasetESAB recommended filler metals and suggested preheat group, by ASTM steel grade

What the source says

A409 TP304 AR 308/308H/308L, OK 61.25 Autrod/Tigrod 308H/308L/308LSi

assets.esab.com, retrieved 2026-09-16

Where each value comes from

The values above are stated away from the sentence quoted with the answer, so the passage that states them is shown here too.

ESAB-recommended FCAW (gas-shielded flux-cored) filler, ESAB-recommended FCAW (self-shielded flux-cored) filler and ESAB-recommended MCAW (metal-cored) filler

SB 308H/308L CB 308L AR MC308L

— all from assets.esab.com, retrieved 2026-09-16

Source

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.