Download the S-55 product information PDF.
Proprietary S-55 Casing Information
"Specifically designed for Kansas operators to deliver the highest quality at the best value."
What does S-55 mean?
- S = Sunrise Oilfield Supply
- 55 = 55,000 PSI Minimum Yield
Manufactured by Domestic ERW mill to Sunrise specifications
- Made from Domestic prime steel coils
- Made to 55,000 minimum yield
- Manufactured where no Martensite is present in the weld line area (Martensite - hardness in the weld line area)
- Electromagnetic inspection of the weld line to secure quality weld
- Wall thickness and Ovality tested
- Sample windows cut for mill lab testing
- Flattening (Crush) test
- Chemical composition
- Steel properties (Yield & Tensile)
- Mill test reports for each heat number
Processed by Domestic threading facilities
- Drifted and tested to API specifications after threaded and coupled
- Couplings applied are API K55
- Samples EMI inspected—100% white banded
Samples sent to third party lab for testing of:
- Tensile properties (Yield & Tensile)
- Chemical composition
- Flattening (Crush)
- Wall thickness
- To confirm that no Martensite is present in weld line area
- Rockwell hardness verification
Performance properties available
Sizes:
- 5-1/2" 14# STC R3 and 5-1/2" 15.50# LTC R3
- 4-1/2" 10.50# STC R3
Current stocking locations:
- Ness City
- Hay
- El Dorado
- Spivey
- El Reno, OK
This is NOT reject API or Limited Service casing.
For further inquiries regarding this proprietary product, contact your Sunrise representative.