Non-API seamless OCTG HS80S SSC resistant deep oil well casing tubing
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
Sour service
Our Sour Service grades demonstrate improved resistance to Sulfide Stress Cracking through their steel microstructure and tight mechanical properties.
Grades to resist sour environments
Vanforge has developed sour service grades for oil and gas operations in sour environments. The grades in our Sour Service Series exhibit improved resistance to Sulfide Stress Cracking (SSC).
An unfavorable combination of H2S dissolved in water, low pH, susceptible structure and high loads, will cause cracks to occur in the steel pipe, which will propagate until failure occurs.
Our SS grades are designed to prevent Sulfide Stress Cracking (SSC) failures.
The improved resistance to SSC is obtained by the specific design of the steel microstructure and tight control of the mechanical properties.
Our SS steel grades are available in minimum yield strengths ranging from 80 ksi to 125 ksi.
Grades to resist mild sour environments in shale applications
R95-S and P110-S proprietary grades are API steel grades with improved resistance to SSC. They are available in minimum yield strength of 95 ksi and 110 ksi.
Parameters for excellent SSC resistance
The steelmaking process must provide products with the following characteristics:
Clean steel, with a very low level of residual elements and oxygen to minimize the quantity of inclusion and specifically oversized oxides.
- Chemistry design: a balanced chemical composition to ensure high hardenability.
- Together with adequate quenching, the chemistry ensures over 95% martensite.
- Fine-grained microstructure through rolling and heat treatment.
- Heat treatment ensuring a very fine microstructure and high final tempering temperature to promote a recovery process eliminating high-energy sites.
Seamless tubing without coupling
| No. | Material | OD (mm) | WT (mm) | Length (meter) |
| 1 | HS80S HS80SS HS90S HS90SS HS95S HS95SS HS100S HS100SS HS110S HS110SS | 48-114 114-340 | 4-16 4.5-36 | 6-12.2 6-15 |
Seamless tubing with coupling
| No. | Material | OD (mm) | WT (mm) | Length (meter) |
| 1 | HS80S HS80SS HS90S HS90SS HS95S HS95SS HS100S HS100SS HS110S HS110SS | 48-114 114-340 | 8-16 8-36 | 6-12.2 6-15 |
Production procedure
