Free AI Engineering Tools

High precision calculation of steam thermodynamic and transport properties, including saturation and subcooled/superheated regions.

Mass from OD, wall thickness, length and density; optional GB/T 17395-2024 pick list.

Calculate volumetric flow, sizing, and velocity for fluid dynamics.

High-precision unit converter for professional engineering applications.

Calculate blind flange thickness according to ASME or GB standards.

Calculate resistance coefficients (K) accurately for valves and fittings using the Crane TP-410 method.

Comprehensively calculates pump head, max installation height, NPSH, and cavitation safety check. Supports NPSHr and safety margin input.

Choose the length calculation basis first (GB/T 9125, generic axial stack, EN, or ASME context). Estimate bolt/stud nominal length from flange thickness, gasket, nuts, and washers—in GB mode using informative GB/T 9125-series annex patterns (GB/T 9125.1—2020 PN, GB/T 9125.2—2020 Class; partially replaces GB/T 9125—2010). You supply dimensions from the governing flange standard.

Metal and non-metal straight-pipe wall thickness plus ASME B31.3-style branch reinforcement (optional oblique branch angle); calculation type dropdown and shareable links.

Calculate pressure drop for incompressible fluid flow in pipes.

Handbook-style volume and surface area for cylinders, cones, spheres, caps, zones, and ellipsoids.

Screening-level mass for butt-weld fittings (elbows, tees, crosses, reducers, stub ends, caps); wide DN/NPS coverage; carbon Sch5–Sch160 / STD/XS/XXS and stainless 5S–80S schedules where tabulated, or custom OD/wall. Sources and limits are explained in the engineering section below.

Calculate the flow coefficient (Kv) for valves based on flow rate and pressure drop.

Calculate natural and loose earthwork volume.

Calculate material weight based on volume and density.