Free Welding Calculators & Reference
Welding Calculators & Reference
Free welding calculators and reference tools for AWS D1.1:2025 and A2.4. Preheat, Masukan Panas, fillet Ukuran, Karbon Ekuivalen — plus symbol charts, compliance guides, and Q&A for fabricators and inspectors.
Calculators
°F
Preheat Calculator
D1.1:2025 Tabel 5.11 lookup. Select steel, process, and Ketebalan — get Minimum preheat and Suhu Antar Lajur.
kJ
Heat Input Calculator
Calculate heat input in kJ/in and kJ/mm from Tegangan, Arus, and Kecepatan Lintasan.
△
Fillet Las Size
D1.1 Table 7.7 minimum Ukuran Las Fillet lookup by material thickness.
lb
Deposition Rate
Calculate Logam Las Laju Deposisi in lbs/hr and kg/hr from wire feed speed and Elektroda diameter.
CE
Carbon Equivalent
Calculate CE(IIW) and Pcm from steel chemistry to assess Mampu Las and Kemampukerasan.
D1.1 Reference
WS
WPS Guide
What goes into a WPS under D1.1. Prequalified vs qualified, Table 5.5 essential variables, format Persyaratan.
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-Pasal 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, Maksimum when CVN or material requirements apply.
HT
Post-Weld Heat Treatment
D1.1 Section 7.8 PWHT requirements: when it applies, Suhu 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 Penerimaan criteria, Inspeksi sequence, and reject/accept decisions.
8.1
Weld Defects
Table 8.1 Diskontinuitas categories, the VT/RT/UT inspection sequence, and when Perbaikan is required.
ND
NDE Requirements
When RT, UT, MT, and PT are required under D1.1 Clause 8. Tables 8.1-8.3 decision Panduan.
UT
Ultrasonic Testing
D1.1 UT acceptance criteria, Class A through D indications, and scanning requirements.
UC
Weld Undercut
Table 8.1 Undercut Batas for static and cyclic connections with Penyebab and repair guidance.
PP
Weld Porosity
Table 8.1 Porositas acceptance criteria — when porosity passes and when it fails Inspeksi Visual.
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 Simbol Las reference sheet. All Jenis, 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 Dijelaskan.
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). Logam Pengisi options and WPS writing guide.
Q&A
?
Q&A Hub
D1.1:2025 Pertanyaan Pengelasan with specific table and clause citations.
A36
A36 Preheat Temperature
Table 5.11 preheat requirements for A36 steel by process Kategori and thickness.
70
E7018 vs E6013
Electrode Perbandingan from a D1.1 compliance perspective — preheat, storage, qualification.
△
Minimum Las Fillet 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 Hasil means for preheat.