Engineering Calculators
Free online tools for pipe weight estimation, material selection, and dimensional reference. Essential resources for engineers, estimators, and procurement professionals.
Pipe Weight Calculator
Estimate pipe weight in kg/m or lb/ft for stainless steel, duplex, and nickel alloy pipes. Input OD, wall thickness, and material grade to get instant weight calculations.
Open ToolPREN Calculator
Calculate the Pitting Resistance Equivalent Number for any stainless steel or nickel alloy grade. Input chemical composition to determine chloride pitting resistance.
Open ToolPipe Schedule Reference Table
Complete reference table for SCH 5S through XXS pipe schedules. Wall thickness in mm and inch for all standard pipe sizes from DN15 to DN600.
Open ToolPressure-Temperature Rating Guide
Maximum allowable working pressure for stainless steel butt weld fittings and flanges per ASME B16.5 and B16.9.
Open ToolMaterial Density Reference
Density values (g/cm³ and lb/in³) for all stainless steel, duplex, and nickel alloy grades.
Open ToolTolerance Reference — ASTM A999
Standard dimensional tolerances for seamless and welded stainless steel pipe per ASTM A999/A1016.
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