Maraging Steel C250 C300 Din 1.6359 Din 1.6354
Maraginf 250 wire and bar steel Technical Data
a. Chemical composition:
Maraging 250 |
|
Element |
1.6359 |
C |
≤0.03 |
Si |
≤0.10 |
Mn |
≤0.10 |
P |
≤0.010 |
S |
≤0.010 |
Al |
0.05-0.15 |
Co |
7.0-8.50 |
Cr |
≤0.50 |
Cu |
≤0.50 |
Mo |
4.60-5.20 |
Ni |
17.0-19.0 |
Ti |
0.30-0.60 |
b. Mechanical properties:
Solution annealed state
|
unit |
value |
Yield strength |
N/mm2 |
640 min. |
Ultimate strength |
N/mm2 |
From 930 to 1150 |
Elongation(A5) |
% |
8 min. |
Reduction of Area |
% |
45 min. |
Hardness |
HB |
353 max. |
c. Grain size: six or finer.
d. Inclusion content:
Type |
A |
B |
C |
D |
E |
Thin |
1.5 |
1.5 |
1.5 |
2.0 |
3.0 |
Heavy |
1.0 |
1.0 |
1.0 |
1.5 |
1.5 |
e. Surface roughness: Ra≤0.8 inLongitudinal direction
Ra≤0.8 in Transversal direction
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