India · IS

24534

IS 734:1975 — IS 734

Chemical composition

wt% · log scale
0.1110Cu3.5 – 4.7Fe0.7Mg0.4 – 1.2Mn0.4 – 1Si0.2 – 0.7Ti0.3Zn0.2
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≤220 MPaTensile strength Rm≤375 MPaElongation A≤10 %Forgings, forging stock, Solution heat treated and naturally aged +W, <= 10 mmYield strength Rp0.2≤235 MPaTensile strength Rm≤385 MPaElongation A≤10 %Forgings, forging stock, Solution heat treated and naturally aged +W, > 10 <= 75 mmYield strength Rp0.2≤225 MPaTensile strength Rm≤375 MPaElongation A≤8 %Forgings, forging stock, Solution heat treated and naturally aged +W, > 150 <= 200 mmYield strength Rp0.2≤235 MPaTensile strength Rm≤385 MPaElongation A≤8 %Forgings, forging stock, Solution heat treated and naturally aged +W, > 75 <= 150 mm

Chemical composition

ElementminmaxSimilarRemarks
Al​​Bal​​
Cu3.54.7
Fe0.7
Mg0.41.2
Mn0.41
Si0.20.7
Ti0.3
Zn0.2

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
Forgings, forging stock, Solution heat treated and naturally aged +W, <= 10 mm≤220≤375≤10
Forgings, forging stock, Solution heat treated and naturally aged +W, > 10 <= 75 mm≤235≤385≤10
Forgings, forging stock, Solution heat treated and naturally aged +W, > 150 <= 200 mm≤225≤375≤8
Forgings, forging stock, Solution heat treated and naturally aged +W, > 75 <= 150 mm≤235≤385≤8