Observed arrival · 2026-10-31
Bench Maths: engineering calculators with their assumptions attached
A set of 14 free engineering calculators for welding, fabrication, hydraulics, and related sizing tasks.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Welding and fabrication engineers
- Worth noticing
- The preheat tool lists method B’s limits and cautions that its Seferian fallback ignores hydrogen and heat input.
Field notes
The preheat calculator lists grades from S235JR and S355J2 through Hardox, Strenx, stainless steels, and aluminum, and accepts custom steel composition. Its page gives EN 1011-2 method B bounds and a Seferian fallback, while cautioning that the latter ignores hydrogen and heat input; it also advises using mill-certificate chemistry for critical work. A company profile can add logo and contact details to WPS and bill-of-materials PDFs, with those details stored only in the browser.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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