Hardness scale converter
Convert between HRC, HRB, Brinell HB, Vickers HV, and Shore D using common empirical correlations (ASTM E140 family).
ISO 6508-1 ISO 6507-1 ISO 6506-1 ASTM E18 ASTM E384
Open calculator → Interactive tools for hardness conversion, tensile metrics, MFI–viscosity, impact toughness, and tensile specimen checks.
Engineering calculators
Interactive tools for hardness conversion, tensile metrics, MFI–viscosity, impact toughness, and tensile specimen checks.
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7 calculators shown
Tensile stress–strain calculator
Compute yield strength Rp, tensile strength Rm, elongation A, and optional reduction of area Z from force and geometry inputs.
ISO 6892-1 ASTM E8
Open calculator → MFI to melt viscosity
Estimate apparent melt viscosity from melt flow index using melt density and an empirical mass-flow correlation.
Open calculator →Impact energy & toughness
Normalize Charpy or Izod absorbed energy to impact toughness aK using ligament area beneath the notch.
ISO 148-1 ASTM E23
Open calculator → Tensile specimen dimension checker
Compare measured ISO 527 and ASTM D638 tensile specimen dimensions against reference geometry within ±0.2 mm.
ISO 527-1 ASTM D638
Open calculator → Vicat setting time interpolation
Linear interpolation for initial setting time at a penetration or needle–base threshold per ASTM C191 and EN 196-3 bracketing readings.
ASTM C191 EN 196-3
Open calculator → Blaine specific surface calculator
Compute cement Blaine specific surface (cm²/g and m²/kg) from device constant K, density, air-flow time, and optional porosity and temperature — aligned with EN 196-6 and ASTM C204 practice.
EN 196-6 ASTM C204 BS 4550 AASHTO T153
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