GOSTs and standards — calculator index

Each entry links to a live weight calculator preset for the typical product family covered by the cited document. Always verify dimensions, editions, and tolerances against your mill certificate and the official standard text.

Standards and calculators

• GOST 8732-78 — seamless hot-deformed carbon and alloy steel pipesRound pipe calculator: outer diameter, wall, length → mass.Open calculator →
• GOST 8731-74 — seamless hot-rolled steel pipes (assortment tables)Same pipe mass model; compare with the edition referenced on your certificate.Open calculator →
• GOST 19903-2015 — general-purpose rolled steel sheet and coilSheet calculator: thickness, width, length → mass.Open calculator →
• GOST 16523-97 — cold-rolled thin-sheet structural and quality steelUse the sheet model for flat mass; tolerances follow the standard tables.Open calculator →
• GOST 5781-82 — hot-rolled steel reinforcing bar for reinforced concreteRebar calculator: nominal diameter and length → mass.Open calculator →
• GOST 8239-89 — hot-rolled steel I-beamsSymmetric I-beam outline: height, flanges, web → mass per meter.Open calculator →
• GOST 8509-93 — hot-rolled steel equal-leg anglesEqual-leg angle calculator: leg, thickness, length.Open calculator →
• GOST 8639-82 — square closed bent steel profiles (tubes)Square tube calculator: outer side, wall, length.Open calculator →
• GOST 8645-68 — rectangular bent closed steel profilesUse the square-tube engine as a quick rectangular hollow estimate.Open calculator →
• GOST 8240-97 — hot-rolled steel U-channels (channels)Channel mass uses the same simplified model as symmetric I-beams (UPN-style).Open calculator →
• GOST 2590-2006 — hot-rolled round steel barsSolid round bar: diameter and length → mass.Open calculator →
• GOST 7417-75 — hot-rolled alloy steel rounds (general use)Same round-bar geometry; pick the alloy grade in the calculator.Open calculator →
• GOST 23279-2012 — welded reinforcing mesh for reinforced concreteMesh calculator: wire diameter, cell size, sheet area → mass.Open calculator →
• GOST 12815-80 — blind and slip-on welded flanges (blank mass)Flange blank: OD, bore, thickness → piece mass (before final machining).Open calculator →

MetalCalc Pro provides indicative geometric mass estimates; it is not a replacement for certified mill tables or structural design software.