Flange Rating Tool

No Nonsense Studios

About this app

Easily calculate and determine flange ratings with this powerful and
user-friendly app. Designed for engineers, designers, and professionals
working with piping and pressure systems, the Flange Rating Tool simplifies
checking ASME B16.5 pressure-temperature ratings for every pressure class.

Enter your operating pressure and temperature, pick a material and class, and
instantly see the maximum allowable pressure, whether you're within rating,
and how much margin you have left.

KEY FEATURES

• Instant results: live pass/fail verdict with a utilization bar showing how
close you are to the limit — no calculate button needed.
• Smart recommendations: the app tells you the minimum flange class that
satisfies your conditions, and switches to it in one tap.
• Rating curve chart: visualize the full pressure-temperature curve for the
selected material and class, with your operating point plotted on it.
• Complete rating tables: browse the full ASME B16.5 table for every class at
every temperature, with your selection highlighted.
• Comprehensive materials: SS316, SS316L, SS304, SS304L, SS321, and A105
across classes 150# to 2500#, with interpolation between table temperatures.
• Metric and Imperial: work in barg, psig, kPag, or kg/cm²g and °C, °F, or K —
switch unit systems in one tap from Settings.
• History: save any check and restore it later, in whichever units you're
using at the time.
• Share and document: export a result as text or a clean one-page PDF report
including the rating curve and full table — ideal for design records.
• Beautiful and accessible: modern Material 3 design with light and dark
themes and colorblind-friendly status colors.
• Offline access: everything works anywhere, anytime — no internet connection
needed.

WHO IS IT FOR?

• Engineers and designers in the oil & gas, chemical, and mechanical
industries.
• Professionals involved in pipeline design, installation, or maintenance.
• Students and educators seeking a reliable flange rating reference tool.

Make your flange rating calculations faster, more accurate, and hassle-free
with the Flange Rating Tool app. Download now and streamline your engineering
tasks!

Note: ratings are based on ASME B16.5 pressure-temperature tables. This app is
an engineering aid — always verify results against the applicable code edition
and your project specifications before use.

What’s new

Completely redesigned with Material 3 Expressive — light & dark themes.
• Instant pass/fail with utilization bar and the minimum class you need
• Pressure–temperature rating curve chart and full rating tables
• Save checks to history and restore them anytime
• Share results as text or a one-page PDF report
• Metric / Imperial unit switch in Settings
• Colorblind-friendly status colors, new app icon
• Accuracy and stability fixes