Guides & Resources
Technical guides on flanges, pipe fittings, standards and materials — written by the team at Pioneer Forge India.
All guides
Types of Flanges: A Practical Guide for Piping Engineers
A practical guide to the main types of pipe flanges — weld neck, slip-on, blind, socket weld, threaded and lap joint — and where each one is used.
ASME B16.5 Flange Pressure Classes Explained
What flange pressure classes 150, 300, 600, 900, 1500 and 2500 actually mean, how temperature and material change the rating, and how to pick the right class.
Buttweld vs Socket Weld Fittings: Which Should You Use?
Compare buttweld (ASME B16.9) and socket weld (ASME B16.11) pipe fittings: sizes, strength, inspection, cost and where each one is the better choice.
SS 304 vs SS 316: Which Stainless Steel Is Right for Your Piping?
Stainless steel 304 vs 316 compared — chemistry, corrosion resistance, L grades, ASTM specifications for flanges and fittings, and how to choose.
Duplex vs Super Duplex Stainless Steel: A Buyer's Guide
Duplex 2205 vs super duplex 2507 stainless steel compared: chemistry, PREN, strength, temperature limits, ASTM A182 grades and typical applications.
Flange Facing Types: Raised Face, Flat Face and RTJ
Raised face, flat face and ring type joint flange facings explained — heights, surface finish, gaskets and when to use each facing type.
How to Calculate Pipe Weight per Metre
The simple formula for pipe weight per metre in kg, with worked examples for carbon and stainless steel and a free online metal weight calculator.
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