Pipe Wall Thickness Calculator

Nominal Pipe Size (NPS) * Select size NPS 1/8" (DN 6) NPS 1/4" (DN 8) NPS 3/8" (DN 10) NPS 1/2" (DN 15) NPS 3/4" (DN 20) NPS 1" (DN 25) NPS 1-1/4" (DN 32) NPS 1-1/2" (DN 40) NPS 2" (DN 50) NPS 2-1/2" (DN 65) NPS 3" (DN 80) NPS 3-1/2" (DN 90) NPS 4" (DN 100) NPS 5" (DN 125) NPS 6" (DN 150) NPS 8" (DN 200) NPS 10" (DN 250) NPS 12" (DN 300) NPS 14" (DN 350) NPS 16" (DN 400) NPS 18" (DN 450) NPS 20" (DN 500) NPS 22" (DN 550) NPS 24" (DN 600) NPS 30" (DN 750) NPS 32" (DN 800) NPS 34" (DN 850) NPS 36" (DN 900) NPS 42" (DN 1050)

Schedule Reference (Base Thickness) * Select size first

Material Grade (API 5L) * Select grade API Grade A API Grade B API Grade X42 API Grade X52 API Grade X60 API Grade X65 API Grade X70

Design Pressure (P) *

Longitudinal Joint Factor (E) * Select joint factor 1.00 - Seamless / ERW / DSAW / Flash Weld 0.80 - Spiral Weld (API 5L) 0.60 - Furnace Butt Weld / Continuous Weld 0.80 - Fusion Weld (ASTM A 134/A 139)

Temperature Factor (T) * Select temp factor ≤ 250°F (121°C) (T=1.000) 300°F (149°C) (T=0.967) 350°F (177°C) (T=0.933) 400°F (204°C) (T=0.900) 450°F (232°C) (T=0.867)