Non-API seamless OCTG HS90L high toughness deep well casing tubing for low temperature service
Vanforge provides a complete range of steel grades for all kinds of oil and gas operations.
API steel Grades
Vanforge supply all API steel grades including all the additional Supplementary Requirements (SR) and/or Product Specification Levels (PSLs).
Proprietary steel Grades
We supply steel grades with performance properties that surpass those indicated by the API.
Grades with enhanced performance properties
Vanforge provides the following proprietary steel grades for superior mechanical properties:
High collapse
Deep well
Low temperature
High ductility
Thermal service
Grades for corrosive environments
To improve the corrosion resistance for the demanding conditions of particular oil and gas wells, Vanforge supply a variety of proprietary steel grades that extend the life span of pipe products reducing corrosion rates:
Sour service
High collapse & Sour service
Critical service
Corrosion Resistant Alloys
Proprietary steel grades for Arctic regions and permafrost conditions.
Vanforge provides Low Temperature (LT) proprietary steel grades for oil and gas wells in very low temperature conditions, including Arctic regions, where highly effective ductility and fracture toughness are required.
When metals do not have adequate impact toughness and are exposed to low temperatures, they fail in a brittle manner.
Our LT Series grades are available in minimum yield strengths ranging from 55 ksi to 125 ksi. To determine their material toughness, LT products are subjected to Charpy testing at -45°C.
Main features of the LT Series
Normally as yield strength increases, steel toughness decreases. Our Low Temperature (LT) steel grades provide great toughness. The key factors for achieving this condition are the following:
- Clean steel, containing very low levels of residual elements and oxygen.
- Balanced chemical composition to endure high hardenability.
- Heat treatment process in combination with chemical composition design to ensure a very fine microstructure and high final tempering temperatures to promote the recovery process.
Seamless tubing without coupling
| No. | Material | OD (mm) | WT (mm) | Length (meter) |
| 1 | HS80L HS90L HS95L HS110L | 114-340 | 6-20 | 6-15 |
Seamless tubing with coupling
| No. | Material | OD (mm) | WT (mm) | Length (meter) |
| 1 | HS80L HS90L HS95L HS110L | 114-340 | 10-36 | 6-15 |
Production procedure
