Free Welding Calculators & Reference
Welding Calculators & Reference
Free welding calculators and reference tools for AWS D1.1:2025 and A2.4. Preriscaldo, Apporto Termico, fillet Dimensione, Equivalente di Carbonio — plus symbol charts, compliance guides, and Q&A for fabricators and inspectors.
Calculators
°F
Preheat Calculator
D1.1:2025 Tabella 5.11 lookup. Select steel, process, and Spessore — get Minimo preheat and Temperatura Interpass.
kJ
Heat Input Calculator
Calculate heat input in kJ/in and kJ/mm from Tensione, Amperaggio, and Velocità di Saldatura.
△
Fillet Saldatura Size
D1.1 Table 7.7 minimum Dimensione Saldatura d'Angolo lookup by material thickness.
lb
Deposition Rate
Calculate Metallo di Saldatura Tasso di Deposizione in lbs/hr and kg/hr from wire feed speed and Elettrodo diameter.
CE
Carbon Equivalent
Calculate CE(IIW) and Pcm from steel chemistry to assess Saldabilità and Temprabilità.
D1.1 Reference
WS
WPS Guide
What goes into a WPS under D1.1. Prequalified vs qualified, Table 5.5 essential variables, format Requisiti.
WP
How to Fill Out a WPS Form
Field-by-field walkthrough of the D1.1 Annex J form. Table 5.5 variables, tolerances, common mistakes.
PW
Prequalified WPS
Clause 5 requirements for prequalification: approved processes, Table 5.6 steels, Figure 5.1 joints.
PQ
PQR — Procedure Qualification
When a PQR is required under D1.1. Table 6.6 essential variables and the prequalified exception.
D1
AWS D1.1:2025 Overview
What D1.1 covers, 11-Clausola overview, prequalified vs qualified WPS paths.
CJ
CJP Weld Guide
Complete joint penetration welds: prequalified joints per Figure 5.1, backing requirements, CJP vs PJP.
MT
Mill Test Report (MTR)
How to read an MTR for D1.1 compliance: ASTM spec to Table 5.6 group to preheat lookup.
T°
Interpass Temperature
D1.1 minimum equals preheat, Massimo when CVN or material requirements apply.
HT
Post-Weld Heat Treatment
D1.1 Section 7.8 PWHT requirements: when it applies, Temperatura ranges, and hold times.
80
Welding Standards Hub
All 80 welding codes covered by Flux: D1.x, ASME IX, API 1104, CSA W59, EN 1011-2, AS/NZS 1554.
Inspection
CW
Certified Welding Inspector
AWS B5.1 CWI requirements: education, experience, exam format, and renewal.
VT
Visual Weld Inspection
D1.1 Clause 8 VT Accettazione criteria, Ispezione sequence, and reject/accept decisions.
8.1
Weld Defects
Table 8.1 Discontinuità categories, the VT/RT/UT inspection sequence, and when Riparazione is required.
ND
NDE Requirements
When RT, UT, MT, and PT are required under D1.1 Clause 8. Tables 8.1-8.3 decision Guida.
UT
Ultrasonic Testing
D1.1 UT acceptance criteria, Class A through D indications, and scanning requirements.
UC
Weld Undercut
Table 8.1 Incisione Marginale Limiti for static and cyclic connections with Cause and repair guidance.
PP
Weld Porosity
Table 8.1 Porosità acceptance criteria — when porosity passes and when it fails Esame Visivo.
Symbol Reference
◻
Weld Symbol Chart
Complete AWS A2.4 reference — every weld type, symbol anatomy, arrow side/other side, finishing codes.
◻
Fillet Weld Symbol
Leg size, throat, equal and unequal legs, intermittent fillet welds.
↓
Printable PDF Chart
Print-optimized Simbolo di Saldatura reference sheet. All Tipi, anatomy, finishing codes on one page.
G
What Does G Mean?
Grinding and finishing symbols per AWS A2.4 — G, M, C, H, P, R, U designators Spiegato.
Preheat & Temperature
T°
Maximum Interpass Temperature
D1.1 has no general max. Only A514, HPS70W, HPS100W have 400–450°F limits.
❄
Cold Weather Welding
Below 32°F: preheat to 70°F. Below 0°F: welding prohibited. Wind shelter 5 mph.
5.11
Table 3.2/5.11 Explained
Table 3.2 is now Table 5.11. Seven preheat categories A through G by process and hydrogen level.
A+B
Dissimilar Metal Welding WPS
Use the highest preheat of either steel (§5.7.2). Metallo d'Apporto options and WPS writing guide.
Q&A
?
Q&A Hub
D1.1:2025 Domande di Saldatura with specific table and clause citations.
A36
A36 Preheat Temperature
Table 5.11 preheat requirements for A36 steel by process Categoria and thickness.
70
E7018 vs E6013
Electrode Confronto from a D1.1 compliance perspective — preheat, storage, qualification.
△
Minimum Saldatura d'Angolo Size
Table 7.7 explained — which thickness governs and how electrode choice changes the answer.
CE
Carbon Equivalent Explained
D1.1 Annex B CE(IIW) formula with (Mn+Si)/6, Pcm, and what your Risultato means for preheat.