High tensile steel usually contains ______% of carbon and _______% of manganese.

Concepts:

Tendons are the high tensile strength steel wires used in Prestressed Concrete structural elements like beam, column etc.

Characteristics:

1. Tensile strength of high tensile steel is in the range of 1400 to 2000 MPa
2.  The carbon Content – 0.6 to 0.85 and Manganese content is 0.7 to 1 .
3. Steel contains not more than 0·050 percent of sulphur and not more than 0.050 percent of phosphorus.

Note:

Based on the chemical composition, especially carbon content, the steels are classified as:

1. Low Carbon Steels/Mild Steels comprise up to 0.3% Carbon. 
2. Medium Steels comprise 0.3-0.6% Carbon 
3. High Steels comprise more than 0.6% Carbon.