Reference tables
Ready-made tables of parameters, markings and equivalents — made to print and pin up in the shop.
Three tables that get printed and pinned up rather than read once. Each has a print button that strips the navigation and leaves the table and the address of the page.
Current versus electrode diameter is the one that ends up next to the machine. Steel grade equivalents is for the moment the material arrives with a certificate in one system and the drawing was made in another. Tungsten colour codes answers the question every TIG welder asks in front of an unlabelled tube of electrodes.
Where a table gives a range and you need a number for your case, there is a calculator that applies the corrections — the tables link to them.
- Steel grade equivalents S235JR = A283 Gr. C = Ст3сп, 1.4301 = AISI 304, 1.4404 = 316L. Cross-reference EN, AISI/ASTM, GOST and PN grades, with weldability notes and substitution rules.
- Current vs electrode diameter Current ranges for 2.0 to 5.0 mm electrodes by position and coating type, in one printable table for the workshop wall.
- MIG/MAG and TIG settings 5–6 mm plate, MAG: 1.0–1.2 mm wire, 160–220 A, 22–25 V. Chart from 0.8 to 12 mm: wire, amps, volts, wire feed speed and gas, plus TIG, thin sheet and box section.
- Tungsten electrode colour codes Green WP for aluminium on AC, blue WL-20 and grey WC-20 for steel and stainless, red WT-20 thoriated. Current by diameter: 1.6 mm carries 70–150 A DC−.
- Welding process numbers What 111, 131, 135, 136, 138, 141 and 311 mean on a WPS and a welder certificate, how 135, 136 and 138 differ, plus the full ISO 4063 table with abbreviations.
- Electrode and wire designations E7018: 490 MPa, all positions, basic low-hydrogen covering. E 42 3 B 32 H5: 420 MPa yield, 47 J at −30 °C. Every digit decoded, with EN ISO 2560 and AWS A5.1 tables.
- Weld imperfection numbers What 401, 5011 and 2011 mean on an inspection report: the full ISO 6520-1 table of weld imperfections in six groups, with the name behind every number.
- Steel section weights Weight per metre for every IPE, HEA, HEB, UPN, UPE and angle size, plus 6 m and 12 m bar weights. UPN 200 — 25.3 kg/m, HEB 200 — 61.3 kg/m. Printable.
Frequently asked questions
Can I print these tables?
Yes — each has a print button, and the print stylesheet drops the navigation and the sidebar so what comes out is the table and the address of the page. They are meant for the workshop wall.
Is an equivalent grade a safe substitute?
Not on the welder's decision. Equivalence tables match strength, not composition, and welding depends on composition. Two grades with the same yield strength can need different preheat. Substitution is a designer's call, made with the certificate of the actual batch.