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IS 320/80 is a type of High Tensile grade that comprises of two different sub grades namely HT1 and HT2. HT1 has a nominal content of copper ranging from 56 to 61%. As compared to other High Tensile grades, HT1 has a maximum of 0.20% content of Aluminum which makes it good choice for Brazing.

Chemical Composition:

Copper	56 to 60%
Tin	0.20 to 1.00%
Manganese	0.2 to 1.5%
Aluminum	0.2 to 1.25%
Lead	0.20% Max
Iron	0.25 to 2.00% Max
Other Impurities	0.50% Max
Zinc	Remainder

Key Features:

» Good for Hot Forming.

» Excellent for Soldering and Brazing

Physical Properties:

Tensile Strength	430 Mpa Min.
Elongation	20 Min.
Proof Stress	240 Min.