80 Standards · Expert Answers

Welding Questions

Every answer cites specific tables and clauses from the current edition. 80 standards covered — D1.1, D1.5, D1.4, ASME IX, API 1104, CSA W59, and more. No hedging, no outdated editions.

Most Saldatura Q&A on the web cites outdated editions. Tabella values change between editions — Preriscaldo categories get reorganized, Saldatura d'Angolo footnotes revised, Accettazione criteria updated. Every answer here references the current edition of each Norma, verified against the source.

Each question links to the relevant Clause5 Calcolatore or reference page so you can look up your specific steel, process, and Spessore after reading the explanation.

What Temperatura di Preriscaldo Does A36 Need?

The answer depends on your Processo di Saldatura and material thickness. Table 5.11 gives different values for Non Basso Idrogeno SMAW vs GMAW/FCAW/SAW.

Table 5.11Clause 5.7

E7018 vs E6013: When to Use Each Electrode

One is Basso Idrogeno, one is rutile. The difference changes your D1.1 preheat Categoria, your acceptance criteria, and whether the joint is Codice-qualified.

Table 5.3Table 5.11A5.1

What Is Saldatura Porosità and When Does D1.1 Reject It?

Every weld has some porosity. D1.1 Clausola 8 defines exactly how much is acceptable — with different Limiti for Esame Visivo vs Radiografico Prova.

Clause 8Table 8.1

D1.1 Minimo Dimensione Saldatura d'Angolo: Table 7.7 Explained

Table 7.7 sets the minimum fillet weld leg Dimensione based on the thicker part joined. The footnotes cover low-hydrogen distinctions most references skip.

Table 7.7Footnotes a/b/c