Free AI Engineering Tools

High-precision unit converter for professional engineering applications.

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

Metal and non-metal straight-pipe wall thickness (GB/ASME); optional GB/T 17395 OD match notes; GB/T 20801.1-2025 appendix B allowable stress; schedule adequacy screening.

Obana (1982) Ch.9 — fouling extrapolation and geometry correction.

Blind plate clamped between flanges per GB 50316-2000 (2008) §6.7.2 or ASME VIII UG-34. Not flat covers.

Mass from OD, wall thickness, length and density; enter dimensions manually. Local spot checks in your browser.

GB 50316 §6.6.1, GB/T 150.3-2024 Eq. (7-40), and ASME VIII UG-34 flat cover thickness—not blind plates between flanges (§6.7.2).

Volumetric flow, initial velocity, pipe sizing and wall thickness; enter Dₒ and t manually.

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.

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

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.

ASME B31.3 style area reinforcement for set-on branches; design conditions and nominal wall thickness entered manually; optional oblique angle, set-in and multi-opening screening.

Calculate pressure drop for incompressible fluid flow in pipes.

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.