| PUMA blade steels |
| Description |
 |
Carbon |
|
Sillizium |
|
Manganese |
|
Phosphorus |
|
Sulfur |
|
Chrome |
|
Vanadium |
|
Molybdenum |
|
Hardness |
| Material no. |
|
% C |
|
% Si |
|
% Mn |
|
% P |
|
% S |
|
% Cr |
|
% V |
|
% Mo |
|
HRC |
| 1.4034
/ 420* |
|
0,43-0,50 |
|
< 1,00 |
|
< 1,00 |
|
< 0,04 |
|
< 0,015 |
|
12,50-14,50 |
|
- |
|
- |
|
52-54 |
| 1.4109 |
|
0,65-0,75 |
|
< 0,70 |
|
< 1,00 |
|
< 0,04 |
|
< 0,015 |
|
14,00-16,00 |
|
- |
|
0,40-0,80 |
|
55-58 |
| 1.4110
/ 440A* |
|
0,48-0,60 |
|
< 1,00 |
|
< 1,00 |
|
< 0,04 |
|
< 0,015 |
|
13,00-15,00 |
|
< 0,15 |
|
0,50-0,80 |
|
55-57 |
| 1.4112 / 440B* |
|
0.85-0.95 |
|
< 1,00 |
|
< 1,00 |
|
< 0,04 |
|
< 0,015 |
|
17,00-19,00 |
|
0,07-0,12 |
|
0,90-1,30 |
|
55-57 |
| 1.4116 |
|
0,45-0,55 |
|
< 1,00 |
|
< 1,00 |
|
< 0,04 |
|
< 0,015 |
|
14,00-15,00 |
|
0,10-0,20 |
|
0,50-0,80 |
|
55-57 |
| 1.4125 / 440C* |
|
0,90-1,25 |
|
0,35 |
|
0,50 |
|
0,018 |
|
0,004 |
|
16,00-18,00 |
|
- |
|
0,60-0,75 |
|
57-60 |
| Böhler
N 680 |
|
0,54 |
|
0,45 |
|
0,40 |
|
- |
|
- |
|
17,30 |
|
0,1 |
|
1,10 |
|
53-58 |
| Damascus |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| RWL 34 |
|
1,05 |
|
0,50 |
|
0,50 |
|
- |
|
- |
|
14,00 |
|
0,20 |
|
4,00 |
|
57-60 |
| PMC 27 |
|
0,60 |
|
0,50 |
|
0,50 |
|
- |
|
- |
|
13,50 |
|
- |
|
- |
|
| *
|
American description |
| C |
Carbon forms carbides of all other
elements by the hardening process.
The carbides of the different
elements are differently hard.
|
| Cr |
Chrome causes a certain rust sluggishness
and increases the hardness and
the toughness at the same time. |
| Mn |
n
Manganese binds superfluous oxygen
and degases the melt. Hardness
and toughness increase at not
too high alloying share at the
same time. |
| Mo |
Molybdenum has the hardest carbide.
It increases strength, toughness
and corrosion resistance. The
heat resistance increases at high
alloying share. |
| P |
Phosphorus
is unwanted. Although it increases
the hardness, but it makes the
steel brittle at higher alloying
share. |
| Si |
Sillizium degases the melt. Tensile
strength and compressive strength
improve at little share of the
Sillizium. |
| S |
Sulfur is an unwanted element.
It is considered a pollution and
often isn't mentioned at the analyses. |
| V |
Vanadium improves toughness and
ultimate strength first of all.
Furthermore it contributes to
finer grain formation. |
|
|
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