| As per ASTMB 338 |
|
|
|
|
|
|
|
|
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 |