QUALITY OF HY-TUF ®

IS 1786-1985
CM/L-7 415771

Hy-Tuf Thermex bars are manufactured using genuine Thermex technology and hardware which guarantee consistent strength properties from bar to bar as well as across the length of an individual bar.

Hy-Tuf Thermex bars offer higher yield strength and elongation compared to CTD bars. Unlike other bars, where elongation property is compromised upon for obtaining higher yield strength, Hy-Tuf Thermex bars have higher strength combined with high elongation. This makes Hy-Tuf Thermex ideal for seismic zones 4 & 5.

Unlike CTD bars, Hy-Tuf Thermex bars have a proven record in resisting loss of strength at high temperatures (400-600 deg.C) such as during fires. Thus, they make the ideal choice for chimneys.

Test results on Hy-Tuf Thermex 550 are given below:

Yield Point Nmm2 Thermex at 20° C 550 at 600° C 530

Hy-Tuf Thermex bars have better corrosion resistance mainly on account of the absence of surface stresses caused by the cold twisting process in the CTD bars. Moreover a protective oxide film on the bar’s periphery prevents atmospheric corrosion.

Hy-Tuf Thermex bars are available in different strengths; from Thermex 400 to Thermex 550. Higher grades can be manufactured against specific orders.

Hy-Tuf Thermex bars are approved in Germany and other countries for dynamically stressed structural sections.

Hy Tuf Thermex bars have high elongation values of 16-25% which makes them ideal for earthquake prone areas. This unique ductility property also gives it excellent bendability.

Versatile process allows alterations of the physical metallurgy of the bars to provide different strengths for the same diameter of the bar.

Hy-Tuf Thermex bars are aging resistant due to their manufacturing process and chemical composition. Comprehensive investigations have shown no tendency to aging embrittlement during welding or during cold deformation of the weld joints.