Free Welding Calculators & Reference
Welding Calculators & Reference
Free welding calculators and reference tools for AWS D1.1:2025 and A2.4. Vorwärmung, Streckenenergie, fillet Größe, Kohlenstoffäquivalent — plus symbol charts, Konformität guides, and Q&A for fabricators and inspectors.
Calculators
°F
Preheat Calculator
D1.1:2025 Tabelle 5.11 lookup. Select steel, process, and Dicke — get Minimum preheat and Zwischenlagentemperatur.
kJ
Heat Input Calculator
Calculate heat input in kJ/in and kJ/mm from Spannung, Stromstärke, and Schweißgeschwindigkeit.
△
Fillet Schweiß Size
D1.1 Table 7.7 minimum Kehlnahtdicke lookup by material thickness.
lb
Deposition Rate
Calculate Schweißgut Abschmelzleistung in lbs/hr and kg/hr from Drahtvorschubgeschwindigkeit and Elektrodendurchmesser.
CE
Carbon Equivalent
Calculate CE(IIW) and Pcm from steel chemistry to assess Schweißeignung and Härtbarkeit.
D1.1 Reference
WS
WPS Guide
What goes into a WPS under D1.1. Vorqualifiziert vs qualified, Table 5.5 essential variables, format Anforderungen.
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-Abschnitt overview, prequalified vs qualified WPS paths.
CJ
CJP Weld Guide
Complete joint penetration welds: prequalified joints per Figure 5.1, Badsicherung 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, Maximum when CVN or material requirements apply.
HT
Post-Weld Heat Treatment
D1.1 Section 7.8 PWHT requirements: when it applies, Temperatur 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 Zulässigkeitskriterien, Prüfung sequence, and reject/accept decisions.
8.1
Weld Defects
Table 8.1 Ungänze categories, the VT/RT/UT inspection sequence, and when Reparatur is required.
ND
NDE Requirements
When RT, UT, MT, and PT are required under D1.1 Clause 8. Tables 8.1-8.3 decision Leitfaden.
UT
Ultrasonic Testing
D1.1 UT Abnahme criteria, Class A through D indications, and scanning requirements.
UC
Weld Undercut
Table 8.1 Einbrandkerbe Grenzwerte for static and cyclic connections with Ursachen and repair guidance.
PP
Weld Porosity
Table 8.1 Porosität acceptance criteria — when porosity passes and when it fails Sichtprüfung.
Symbol Reference
◻
Weld Symbol Chart
Complete AWS A2.4 reference — every Nahtart, symbol anatomy, Pfeilseite/Gegenseite, finishing codes.
◻
Fillet Weld Symbol
Leg size, throat, equal and unequal legs, intermittent fillet welds.
↓
Printable PDF Chart
Print-optimized Schweißsymbol reference sheet. All Arten, 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 Erklärt.
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). Zusatzwerkstoff options and WPS writing guide.
Q&A
?
Q&A Hub
D1.1:2025 Schweißfragen with specific table and clause citations.
A36
A36 Preheat Temperature
Table 5.11 preheat requirements for A36 steel by process Kategorie and thickness.
70
E7018 vs E6013
Electrode Vergleich from a D1.1 compliance perspective — preheat, storage, qualification.
△
Minimum Kehlnaht Size
Table 7.7 explained — which thickness governs and how Elektrode choice changes the answer.
CE
Carbon Equivalent Explained
D1.1 Annex B CE(IIW) formula with (Mn+Si)/6, Pcm, and what your Ergebnis means for preheat.