Grade

Al

V

N.max

C.max

H.max

Fe.max

O.max

Remainder (single) max

Remainder (total amount) max

TA1

0.03

0.08

0.015

0.20

0.18

0.1

0.40

TA2

0.03

0.08

0.015

0.30

0.25

0.1

0.40

TC4

5.5-6.75

3.5-4.5

0.05

0.08

0.015

0.40

0.20

0.1

0.40

Reference standard for mechanical properties

The mechanical properties at room temperature are not less than

tensile strength

Yield strength

Elongation

Section shrinkage rate

TA1

170 MPa

240 MPa

25%

30%