Free Welding Calculators & Reference
Welding Calculators & Reference
Free welding calculators and reference tools for AWS D1.1:2025 and A2.4. التسخين المسبق, مدخل الحرارة, fillet حجم, مكافئ الكربون — plus symbol charts, compliance guides, and Q&A for fabricators and inspectors.
Calculators
°F
Preheat Calculator
D1.1:2025 الجدول 5.11 lookup. Select steel, process, and السماكة — get الحد الأدنى preheat and درجة حرارة بين الممرات.
kJ
Heat Input Calculator
Calculate heat input in kJ/in and kJ/mm from الجهد الكهربائي, شدة التيار, and سرعة اللحام.
△
Fillet لحام Size
D1.1 Table 7.7 minimum حجم لحام الزاوية lookup by material thickness.
lb
Deposition Rate
Calculate معدن اللحام معدل الترسيب in lbs/hr and kg/hr from wire feed speed and قطب كهربائي diameter.
CE
Carbon Equivalent
Calculate CE(IIW) and Pcm from steel chemistry to assess قابلية اللحام and قابلية التصلب.
D1.1 Reference
WS
WPS Guide
What goes into a WPS under D1.1. Prequalified vs qualified, Table 5.5 essential variables, format متطلبات.
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-البند 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, الحد الأقصى when CVN or material requirements apply.
HT
Post-Weld Heat Treatment
D1.1 Section 7.8 PWHT requirements: when it applies, درجة الحرارة 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 القبول criteria, فحص sequence, and reject/accept decisions.
8.1
Weld Defects
Table 8.1 الانقطاع categories, the VT/RT/UT inspection sequence, and when إصلاح is required.
ND
NDE Requirements
When RT, UT, MT, and PT are required under D1.1 Clause 8. Tables 8.1-8.3 decision دليل.
UT
Ultrasonic Testing
D1.1 UT acceptance criteria, Class A through D indications, and scanning requirements.
UC
Weld Undercut
Table 8.1 التقويض حدود for static and cyclic connections with أسباب and repair guidance.
PP
Weld Porosity
Table 8.1 المسامية acceptance criteria — when porosity passes and when it fails الفحص البصري.
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 رمز اللحام reference sheet. All أنواع, 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 شرح.
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). معدن الحشو options and WPS writing guide.
Q&A
?
Q&A Hub
D1.1:2025 أسئلة اللحام with specific table and clause citations.
A36
A36 Preheat Temperature
Table 5.11 preheat requirements for A36 steel by process الفئة and thickness.
70
E7018 vs E6013
Electrode مقارنة from a D1.1 compliance perspective — preheat, storage, qualification.
△
Minimum لحام الزاوية 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 النتيجة means for preheat.