Pressure Ratings of Pipes and Fittings

Pressure ratings of pipes and tubes and their fittings - carbon steel, stainless steel, plastic, copper and more.

Pressure Ratings of Pipes and Fittings

This calculator helps you determine the pressure ratings for various types of pipes and fittings used in mechanical, electrical, and plumbing systems.

Material Types

  • Carbon Steel
  • Stainless Steel
  • Plastic (PVC, CPVC, PEX)
  • Copper
  • Aluminum
  • Cast Iron

Standard Specifications

  • ANSI/ASME B16.5 (Flanges)
  • ANSI/ASME B16.11 (Forged Fittings)
  • ANSI/ASME B16.9 (Factory-Made Wrought Steel Buttwelding Fittings)
  • ASTM Standards
  • ISO Standards

Factors Affecting Pressure Ratings

  • Material composition
  • Pipe schedule and wall thickness
  • Operating temperature
  • Connection type (threaded, welded, flanged)
  • Safety factor
Calculator

Inputs

Results

Pressure Rating-- PSI
Recommended Operating Pressure-- PSI
Burst Pressure (Estimated)-- PSI
Material TypeTemperature Range (°F)Common SchedulesMax PSI (1" Pipe)
Carbon Steel-20 to 650SCH 40, SCH 801440
Stainless Steel-320 to 800SCH 10, SCH 40, SCH 802160
Plastic (PVC)32 to 140SCH 40, SCH 80600
Copper-100 to 400Type K, L, M2800
Aluminum-100 to 350SCH 401100
Cast Iron32 to 366Class 125, 250200
Pressure Ratings of Pipes and Fittings | MEPKit Engineering Tools | MEPKit