DILLIMAX 550 Extra Tough (EN 1.8986)
DILLIMAX 550 Extra Tough (EN 1.8986) introduction
DILLIMAX 550 is a high strength quenched and tempered, fine grained structural steel (through sufficient aluminium content) with a minimum yield
strength of 550 MPa (80 ksi) in its delivery condition (referring to the lowest thickness range). Its mechanical
properties are achieved by water quenching followed by tempering.
Equivalent material: EN 1.8986, DIN 1.8986, EN S550QL1, DIN S550QL1
DILLIMAX 550 Extra Tough (EN 1.8986) general
| Property |
Value |
Comment |
| Carbon equivalent (CEV) |
Carbon equivalent (CEV) of 0.43 [-] |
auxiliary data for thickness t ≤ 40 mm |
| - |
Carbon equivalent (CEV) of 0.45 [-] |
max. value for thickness t ≤ 40 mm |
| - |
Carbon equivalent (CEV) of 0.6 [-] |
auxiliary data for thickness 40 < t ≤ 100 mm |
| - |
Carbon equivalent (CEV) of 0.63 [-] |
max. value for thickness 40 < t ≤ 100 mm |
| - |
Carbon equivalent (CEV) of 0.63 [-] |
auxiliary data for thickness 100 < t ≤ 150 mm |
| - |
Carbon equivalent (CEV) of 0.67 [-] |
max. value for thickness 100 < t ≤ 150 mm |
| Carbon equivalent note |
- |
DILLIMAX 550 Extra Tough (EN 1.8986) chemical
| Property |
Value |
Comment |
| Boron |
Boron of 0.004 % |
max. |
| Carbon |
Carbon of 0.18 % |
max. |
| Chromium |
Chromium of 1 % |
max. |
| Iron |
- |
| Manganese |
Manganese of 1.7 % |
max. |
| Molybdenum |
Molybdenum of 0.6 % |
max. |
| Nickel |
Nickel of 1 % |
max. |
| Niobium |
Niobium of 0.08 % |
max. V+Nb |
| Phosphorus |
Phosphorus of 0.018 % |
max. |
| Silicon |
Silicon of 0.5 % |
max. |
| Sulfur |
Sulfur of 0.005 % |
max. |
| Vanadium |
Vanadium of 0.08 % |
max. V+Nb |
DILLIMAX 550 Extra Tough (EN 1.8986) electrical
| Property |
- |
- |
| Application areas |
| Cold Forming |
Position of bending line to rolling direction |
Minimum bending radius |
Minimum die width |
| Transverse direction |
2 t |
7 t |
| Longitudinal direction |
3 t |
9 t |
DILLIMAX 550 Extra Tough (EN 1.8986) mechanical
| Property |
Temperature |
Value |
Testing Standard |
Comment |
| Charpy impact energy, V-notch |
-60 °C |
Charpy impact energy, V-notch of 27 J |
EN ISO 148-1 |
average of 3 tests | transverse specimens |
| - |
-60 °C |
Charpy impact energy, V-notch of 30 J |
EN ISO 148-1 |
average of 3 tests |
| - |
-40 °C |
Charpy impact energy, V-notch of 30 J |
EN ISO 148-1 |
average of 3 tests | transverse specimens |
| - |
-40 °C |
Charpy impact energy, V-notch of 40 J |
EN ISO 148-1 |
average of 3 tests |
| - |
-20 °C |
Charpy impact energy, V-notch of 35 J |
EN ISO 148-1 |
average of 3 tests | transverse specimens |
| - |
-20 °C |
Charpy impact energy, V-notch of 50 J |
EN ISO 148-1 |
average of 3 tests |
| - |
0 °C |
Charpy impact energy, V-notch of 40 J |
EN ISO 148-1 |
average of 3 tests | transverse specimens |
| - |
0 °C |
Charpy impact energy, V-notch of 60 J |
EN ISO 148-1 |
average of 3 tests |
| Elongation |
- |
Elongation of 16 % |
EN ISO 6892-1 |
min. for plate thickness t ≤ 200 mm | transverse specimens, A5 |
| - |
- |
Elongation of 17 % |
ASTM A370 |
min. for plate thickness t ≤ 200 mm | transverse specimens, A2 |
| Tensile strength |
- |
Tensile strength of 590 - 770 MPa |
EN ISO 6892-1 |
for plate thickness 100 < t ≤ 150 mm | transverse specimens |
| - |
- |
Tensile strength of 640 - 820 MPa |
EN ISO 6892-1 |
for plate thickness t ≤ 100 mm | transverse specimens |
| Yield strength |
- |
Yield strength of 490 MPa |
EN ISO 6892-1 |
min. ReH for plate thickness 100 < t ≤ 150 mm | transverse specimens |
| - |
- |
Yield strength of 530 MPa |
EN ISO 6892-1 |
min. ReH for plate thickness 50 < t ≤ 100 mm | transverse specimens |
| - |
- |
Yield strength of 550 MPa |
EN ISO 6892-1 |
min. ReH for plate thickness t ≤ 50 mm | transverse specimens |
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