A312 · TP309H

For A312 · TP309H, astm specification is A312; class or grade is TP309H; esab-recommended smaw (stick) filler is AR 309/309H, verified against its source on 2026-08-19.

What the source says

A312 TP304 AR 308/308H/308L, OK 61.25 Autrod/Tigrod 308H/308L/308LSi TP304N, TP304H AR 308/308H, OK 61.25 Autrod/Tigrod 308H TP304L, TP304LN AR 308L Autrod/Tigrod 308L/308LSi TP309S AR 309L Autrod/Tigrod 309L/309Si TP309H AR 309/309H

— assets.esab.com, retrieved 2026-08-19

Source

• assets.esab.comhttps://assets.esab.com/assetbank-esab/assetfile/22174.pdf

Last verified against source: 2026-08-19. Due for re-check by 2028-08-18. This page as Markdown · OKF bundle · full dataset as JSON.