Gr9

Titanium

Gr9

(IS 7589). Nominal values—confirm mill certificate.

Chemical Composition (%)

AL	2.5
V	2
FE	0.3
O	0.12

Mechanical Properties

Tensile:≥620 MPa;Yield:≥485 MPa;Elong:≥15%

Equivalent Grades

IS 7589 Gr9

Available Forms

Bar,Plate

Uses

Low-alloy engineering steel with enhanced hardenability and strength from alloying elements. Vanadium (≈2.5%) refines grain and strengthens the tempered structure. Applied to gears, shafts, bolts, connecting rods, pressure parts and heavy forgings in automotive, energy and machinery sectors.

Heat Treatment

Austenitize at 760–820 °C and quench (oil/water) then temper at 150–400 °C for high hardness; spheroidize anneal (680–720 °C) improves machinability of the as-rolled bar.

Precautions

Weldable with standard procedures; preheat may be needed for thick sections or higher-carbon/ alloy grades. Protect from decarburization during heating (controlled atmosphere or protective coating).

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Gr9