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USS C110 Steel Technical Specifications

2024-04-22 22:07 170 views

Technical Specifications of USS C110 Steel

The USS C110 is a proprietary controlled yield strength steel grade, specifically designed for use in deeper sour condensate wells. This steel grade is engineered to meet the stringent requirements of the oil and gas industry, particularly in environments where sour service conditions prevail.

Mechanical Properties

  • Minimum Yield Strength: 110,000 psi
  • Maximum Yield Strength: 125,000 psi
  • Minimum Tensile Strength: 120,000 psi
  • Maximum Hardness: 30.0 HRC (mean value)

The yield strength of USS C110 is tightly controlled to ensure the material's reliability under stress. The tensile strength, which is the maximum stress a material can withstand before breaking, is also a critical property for this steel grade. The hardness, measured on the Rockwell C scale, indicates the material's resistance to deformation and wear.

Standards and Testing

Inspection, testing, and dimensions of USS C110 steel are in accordance with API T95, which is a set of standards established by the American Petroleum Institute. This standard ensures that the steel meets the necessary quality and performance criteria for use in the oil and gas industry.

Sulfide Stress Corrosion Cracking (SSCC) testing is a mandatory requirement for each heat of USS C110 steel. This testing ensures that the material can withstand a threshold stress of at least 85% of the specified minimum yield strength, which is crucial for the safety and integrity of structures in sour service environments.


  • American Petroleum Institute. (n.d.). API T95. Retrieved from https://www.api.org/
  • Materials Performance. (n.d.). Understanding the Basics of Material Properties. Retrieved from https://www.matweb.com/

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