Instrumentation Fittings Weight Chart



Tube OD Wall Thickness Tube ID Material Grade / Specification Weight (kg/m) Weight (lb/ft) Pressure Class (Typical) Instrumentation Application
1/16" 0.020" 0.021" Stainless Steel ASTM A269 TP316 / 316L 0.03 0.02 6000 PSI Capillary / Analyzer Lines
1/8" 0.028" 0.069" Stainless Steel ASTM A269 TP316 / 316L 0.08 0.05 6000 PSI Analyzer Lines
1/4" 0.035" 0.180" Stainless Steel ASTM A269 TP316 / 316L 0.20 0.13 6000 PSI Pressure Transmitters
3/8" 0.049" 0.277" Stainless Steel ASTM A269 TP316 / 316L 0.43 0.29 6000 PSI Control Panels
1/2" 0.065" 0.370" Stainless Steel ASTM A269 TP316 / 316L 0.96 0.65 6000 PSI Impulse Lines
3/4" 0.083" 0.584" Stainless Steel ASTM A269 TP316 / 316L 1.70 1.14 5000 PSI Process Instrumentation
1" 0.095" 0.810" Stainless Steel ASTM A269 TP316 / 316L 2.45 1.65 4500 PSI Sampling Lines
1/4" 0.035" 0.180" Duplex Stainless Steel UNS S32205 / S31803 0.22 0.15 10000 PSI Offshore Instrumentation
3/8" 0.049" 0.277" Super Duplex Stainless Steel UNS S32750 / S32760 0.47 0.32 12000 PSI High-Pressure Offshore Lines
1/2" 0.065" 0.370" Duplex Stainless Steel UNS S32205 1.02 0.69 10000 PSI Hydraulic Instrument Lines
1/8" 0.028" 0.069" Nickel Alloy Inconel 600 0.10 0.07 10000 PSI High-Temp Analyzer Lines
1/4" 0.035" 0.180" Nickel Alloy Inconel 625 0.24 0.16 10000 PSI High Temperature Service
3/8" 0.049" 0.277" Nickel Alloy Hastelloy C276 0.50 0.34 10000 PSI Corrosive Media Lines
1/8" 0.028" 0.069" Copper ASTM B75 C12200 0.09 0.06 3000 PSI Pneumatic Signal Lines
1/4" 0.030" 0.190" Copper Nickel 90/10 Cu-Ni (C70600) 0.23 0.15 3500 PSI Marine Instrumentation
1/4" 0.035" 0.180" Monel Monel 400 0.25 0.17 6000 PSI Marine & Chemical Instrumentation
3/8" 0.049" 0.277" Monel Monel 400 0.48 0.32 6000 PSI Marine Instrumentation