Seamless Pipe Weight Calculator

Estimate Cr-Mo seamless pipe weight from outside diameter, wall thickness and length. Formula: (OD − WT) × WT × 0.02466 kg/m (steel ρ 7.85).

Outside diameter OD (mm)

Wall thickness WT (mm)

Total length (m)

Number of lengths

Theoretical mass per EN/ASME formula; mill tolerance per ASTM A335 applies to delivered weight.