Free Engineering Tool — #149
Steel Pipe Dimensions — ISO 4200
Look up OD, wall thickness, ID, and weight per meter for standard steel pipe sizes. Select DN or NPS and schedule.
Pipe Data
| Schedule | OD (mm) | Wall (mm) | ID (mm) | Weight (kg/m) |
|---|
Pipe Weight Formula
- OD — outside diameter (mm)
- t — wall thickness (mm)
- ρ — steel density ≈ 7850 kg/m³
Schedule vs Pressure Class
Schedule number ≈ 1000 × P/S, where P is internal pressure (psi) and S is allowable stress (psi). Higher schedules handle higher pressures. Sch 40 is the most common for general service.
⚠️ Note: Always verify pipe dimensions from manufacturer data for critical applications. Tolerances per ISO 4200 and ASME B36.10 apply.
Professional field balancing instruments. Used in 50+ countries.
Nikolai Shelkovenko
Nikolai Shelkovenko is a vibration analysis engineer and the founder and CEO of Vibromera. For more than 15 years he has balanced rotating equipment in the field rather than on a test bench: mulchers, industrial fans, crushers, centrifuges, shafts and spindles. That work is what the Balanset instruments grew out of — they were designed as a tool a specialist can carry to the machine and use alone, on site, not as laboratory equipment. Vibromera was founded in 2017 and has been based in Porto, Portugal, since 2023. Development, assembly and support of the Balanset line all happen here. The flagship instrument is the Balanset-1A, a portable analyser for single- and two-plane balancing and for vibration diagnostics. Nikolai is personally involved in customer support, in working through difficult balancing cases and in the development of the software. He works with customers worldwide, in any language.
