Tubing

316 Tubing

Catalog NumberNominal ODMAWP* (psi)OD ToleranceID Tolerance
160500431/4"20,0000.248/0.2430.104/0.109
160500583/8"20,0000.370/0.3650.198/0.203
160512559/16"20,0000.557/0.5520.307/0.312
160501423/4"20,0000.745/0.7400.432/0.437
160516601"20,0000.995/0.9900.557/0.562
Ultra High Pressure Tubing
Inspection and Testing GPP’s tubing is inspected to assure freedom from all detectable seams, laps, flaws and fissures, intergranular carbide precipitation, or corrosion. Sample pieces are lot tested to confirm mechanical properties. Hydrostatic testing is also performed on a statistical basis at the working pressure of the tube. Additionally, our tubing receives wall inspection and testing by OD Eddy Current per ISO 10893-2:2011.

GPP offers Austenitic, cold-drawn, 316 stainless steel tubing in a variety of sizes. Available in 20-foot random lengths, our tubing is designed to provide the same performance standards as our valves and fittings. GPP’s tubing is manufactured for applications requiring both strength and corrosion resistance.

Special Materials Available upon request.

316 Tubing

Catalog NumberNominal ODMAWP* (psi)OD ToleranceID Tolerance
160501789/16"40,0000.557/0.5520.245-0.250
160502051/4"66,0000.248/0.2430.079-0.083
160502173/8"66,0000.370/0.3650.121-0.125
160502299/16"66,0000.557/0.5520.182-0.187
Ultra High Pressure Tubing

304 Tubing

Catalog NumberNominal ODMAWP* (psi)OD ToleranceID Tolerance
160512101/4"66,0000.248/0.2430.079-0.083
160512133/8"66,0000.370/0.3650.121-0.125
160512349/16"66,0000.557/0.5520.182-0.187
High Pressure Coil, Robot Coil
Inspection and Testing GPP’s tubing is inspected to assure freedom from all detectable seams, laps, and other flaws and fissures, as well as intergranular carbide precipitation or corrosion. Sample pieces are lot tested to confirm mechanical properties. Hydrostatic testing is also performed on a statistical basis at the working pressure of the tube. Additionally, our tubing receives wall inspection and testing by OD Eddy Current per ISO 10893-2:2011.
GPP offers Austenitic, cold-drawn, 316 stainless steel tubing in a variety of sizes. Available in 20 to 40-foot lengths, our tubing is designed to provide the same performance standards as our valves and fittings. GPP’s tubing is manufactured for applications requiring both strength and corrosion resistance.

Special Process: Extended Pressure-cycle service life of tubing can be significantly extended by a one-time factory process known as “autofrettage,” which involves a single over-pressurization to introduce favorable residual stresses into the tubing wall. Up to a 2.6X increase in pressure-cycle service, life can be achieved for 66,000psi tubing using this process, which is available at GPP as a factory option.

HP 160 Tubing

Catalog NumberNominal ODMAWP* (psi)OD ToleranceID Tolerance
160512401/4"100,0000.248/0.2430.079-0.083
160513063/8"100,0000.370/0.3650.121-0.125
160513279/16"100,0000.557/0.5520.182-0.187
Ultra High Pressure Tubing

Inspection and Testing GPP offers Sandvick HP160 specialty tubing in a variety of sizes available in various random lengths. Our tubing is designed to provide superior performance in this extreme service. GPP’s tubing is manufactured for applications requiring both strength and corrosion resistance. Autofrettage for 

Special Process: Extended Pressure-cycle service life of tubing can be significantly extended by a one-time factory process known as “autofrettage,” which involves a single over-pressurization to introduce favorable residual stresses into the tubing wall. Autofrettage is generally required to achieve adequate pressure-cycle service life for most 100,000psi tubing applications and is available at GPP as a factory option.