Engineering Reference Tables & Data
Free, standards-backed reference data for piping and valve engineering — pipe dimensions and weights, friction coefficients, valve flow coefficients, and fitting losses. Each table cross-links the SimuPipe tools that use the same data.
Dimensions & Standards
Pipe Schedule Tables
OD, wall thickness, and ID for ASME/ASTM and EN/DIN schedules across 11 materials.
Steel Pipe Weight Chart
Carbon steel Schedule 40 weight per metre and per foot — empty and full of water.
NPS to DN Conversion Chart
Nominal pipe size equivalents with the outside diameter each size actually has, in mm and inches.
Flange Dimensions (ASME & EN)
Raised-face tables for ASME B16.5 & B16.47 Class 150–2500 and EN 1092-1 PN 6–40, in inches or mm.
Bolt-Hole Orientation
ASME B16.5 flange bolt-hole orientation reference guide.
Coefficients & Properties
Pipe Roughness (ε)
Absolute roughness in mm and ft for Darcy-Weisbach / Colebrook-White friction.
Fluid Properties
Density, viscosity, vapor pressure, molar mass and γ for 38 liquids and gases.
Water Properties (0–100 °C)
Density, viscosity, vapour pressure and specific heat of water vs temperature — IAPWS-IF97.
Gas Properties
M, R, γ, specific gravity, Nm³/Sm³ densities, sonic velocity and critical constants for 23 gases.
Air Properties (−25 to 200 °C)
Density, viscosity and speed of sound for air vs temperature, with R, γ and cₚ.
Atmospheric Pressure vs Altitude
ISA pressure, temperature, air density and the boiling point of water, sea level to 10,000 m.
Pipe Thermal Expansion
Expansion coefficients for steel, copper and plastic pipe, growth per 10 m, and restrained stress.
Hazen-Williams C-Factor
Roughness coefficient C by material, new vs aged, with the head-loss equation.
Cv / Kv Conversion
Convert valve flow coefficients, with a conversion table and typical Cv values.
Fitting K-Factors (Crane TP-410)
Resistance coefficients for valves and fittings, with the minor-loss equation.
Put the data to work in SimuPipe
Design and simulate pipe networks in your browser — flow, pressure drop, and sizing across the whole system.