Resources
Downloads & Forms
OCTG - Line Sheet
New API 5CT Production Tubing and Casing specifications & details.
Line Pipe - Line Sheet
API 5L X52 PSL-2 ERW specifications & details.
Poly Pipe - Line Sheet
HDPE Poly Pipe specifications & Details
Trident Steel Brochure
Download our brochure for a quick reference of our products, processing/threading/end finishing & coating options, stocking locations, and contact information.
Credit Application
Please complete the attached form in its entirety. Email the completed application to Catherine Schoeffler at or fax to 314-984-8700.
Tools
Barlow’s Formula
Barlow’s Formula is an equation which shows the relationship of internal pressure, allowable stress, nominal thickness and diameter. To determine bursting pressure of line pipe, use this formula. Trident Steel offers ERW line pipe from international and domestic mills. To find out more, contact us today.
- P = ID pressure (psi)
- S = Material strength (psi) *Minimum yield strength*
- T = Wall thickness (in)
- OD = Outside Diameter (in) *Must be a decimal*
- SF = Safety factor (generally 1.5 – 10, 1 for collapsing pressure)
