Spec. EN 10308, EN 10228-2, EN 10204
The bars can either be rolled or forged provided that the requested mechanical properties in cold drawn condition are fulfilled.
Chemical Composition(Heat analysis in weight/%)
c | Si | Mn | P | s | Cr | N |
0,30-0,50 | <0,50 | 18,0-20,0 | <0,050 | <0,015 | 3,00-5,00 | 0,080-0,120 |
Mechanical Properties
A hardness test shall be performed to verify the uniformity of the strength within a delivery lot (permelt and heat treatment batch).
The test amount shall be 10 % of the bars with a minimum of 10 bars. When the lot consists of less than 10 bars all bars shall be tested.
The mechanical properties are to be determined for both the hardest and softest bar.
0.2%-proof strength |
tensile strength |
elongation |
reduction of area |
impact energy |
hardness |
10 =5d | |||||
(N/mm2) | (N/mm2) | (%) | (%) | (J) | HB30 |
>500 | 850-1250 | >20 | >35 | S901’ | 260 - 360 |