As per ASTMB 338 |
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A. Compositions |
ASTM GRADE |
1 |
2 |
3 |
7 |
9 |
11 |
12 |
sim DIN Grade |
-3.7025 |
-3.7035 |
-3.7055 |
-3.7235 |
(-) |
-3.7225 |
-3.7195 |
|
% max |
% max |
% max |
% max |
% max |
% max |
% max |
Nitrogen |
0.03 |
0.03 |
0.05 |
0.03 |
0.02 |
0.03 |
0.03 |
Carbon |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.08 |
Hydrogen |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
Iron |
0.2 |
0.3 |
0.3 |
0.3 |
0.25 |
0.2 |
0.3 |
Oxygen |
0.18 |
0.25 |
0.35 |
0.25 |
0.15 |
0.18 |
0.25 |
Aluminium |
- |
- |
- |
- |
2.5-3.5 |
- |
- |
Vanadium |
- |
- |
- |
- |
2.0-3.0 |
- |
- |
Pailadium |
- |
- |
- |
0.12-0.25 |
- |
0.12-0.25 |
- |
Molybdenum |
- |
- |
- |
- |
- |
- |
0.2-0.4 |
Nickel |
- |
- |
- |
- |
- |
- |
0.6-0.9 |
Residuals/Each |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
Residuals/Total |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
Titanium |
Rem. |
Rem. |
Rem. |
Rem. |
Rem. |
Rem. |
Rem. |
B. Mechanical Properties (Annealed) |
|
Mpa |
Mpct |
Mpa |
Mpa |
Mpa |
Mpa |
Mpa |
Tensile strength(min) |
240 |
345 |
450 |
345 |
620 |
240 |
483 |
yield strength(min) |
170 |
275 |
380 |
275 |
483 |
170 |
345 |
yield strength(max) |
310 |
450 |
550 |
450 |
- |
310 |
- |
Elongation %(min) |
24 |
20 |
18 |
20 |
15 |
24 |
18 |