Steel grade equivalents
OL 37, OL 52, S235, S355, OLC, stainless and aluminium.
Inches to mm and pipe DN
Converter with fractions and the DN – inch – outside diameter table.
Metric threads and the right tap drill
M3–M36, coarse and fine pitch, clearance holes.
Welding current for electrodes
The right electrode and current for the plate thickness.
Density of metals
Steel, stainless, aluminium, copper, brass and the weight formula.
For the weight of the material, use the metal weight calculator; for the cutting plan, the cutting program.