Steel description and applications
Quend 960 is extra high strength structural steel produced as quenched and tempered with a minimum yield strength of 960 MPa. Quend 960 complies with the requirements corresponding to the S960QL given in the EN 10025-6 standard, where a minimum impact thoughness of 27 J is guaranteed at -40°C. Quend 960 is recommended for the following applications:
- crane booms
- lifting equipment
- stabilising support
- undercarriage …
Technical characteristics
Tensile properties
TRANSVERSE TESTING
|
Yield strength Rp 0.2 |
Tensile Strength Rm |
Elongation A5 |
|---|---|---|
|
960 MPa min |
980 – 1150 MPa |
12% min |
Impact toughness
Minimum values at
|
0 °C |
-20 °C |
-40 °C |
|---|---|---|
|
35 J |
30 J |
27 J |
Transverse testing according to EN 10025 option 30. Thickness < 12 mm subsized charpy V s
Chemical composition
The steel is fine grain treated
Max ladle analysis , %
|
C |
Si |
Mn |
P |
S |
Nb |
Cr |
V |
Ti |
Ni |
Al |
Mo |
N |
B |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
0,20 |
0,50 |
1,50 |
0,02 |
0,01 |
0,04 |
0,70 |
0,06 |
0,01 |
1,50 |
0,06 |
0,70 |
0,005 |
0,005 |
Carbon equivalent, typical values, %
|
CEV(1) |
CET(2) |
|---|---|
|
0,57 |
0,36 |
(1) CEV = C+Mn/6+ (Ni+Cu)/15+ (Cr+Mo+V)/5 (2) CET = C+(Mn+Mo)/10+Ni/40 +(Cr+Cu)/20
Dimensions
Quend 960 is currently supplied in the following range:
- thickness: 4 – 30 mm
- width: 1500 – 3100 mm
NLMK Clabecq is continuing the extension of its dimensional program. For more information, please check our website or contact your local representative.
Flatness, tolerances & surface properties
Quend 960 is delivered with a unique combination of excellent flatness, tight thickness tolerances and superior surface finish.
|
Feature |
Norm |
|---|---|
|
FLATNESS |
Class N (standard) & . Class S |
|
THICKNESS tolerance |
– meets and exceeds EN 10029 Class A – tighter tolerances upon request |
|
Shape, length, width tolerances |
meets EN 10029 |
|
SURFACE properties |
exceeds the usual market standards, EN 10163-2 Class B3 |
Delivery conditions
Quend 960 is delivered as quenched and tempered. Our Quend plates are supplied as standard in the shotblasted and painted condition. In order to maintain a good weldability and laser cutting performance, a low zinc silicate primer is applied. Plates can also be delivered unpainted.
Heat treatment
The mechanical properties of Quend 960 has been obtained by quenching and tempering. For not losing the guaranteed properties of Quend 960, the plate should not be used in applications requ