As Eileen Gu won the gold medal in the women's freestyle ski jump, the Shougang ski jumping platform also attracted people's attention. It looks like a streamer from a distance. Its design inspiration comes from a part of the streamer in the "Feitian" shape in the Dunhuang frescoes in China. And the meaning of "Feitian" also has the same meaning of leaping and flying as the English name Big Air of the ski jumping project, so the Shougang ski jumping platform is also called "Xuefeitian".
Steel plate is essential in building sports facilities, for example, Q345B low alloy high strength steel plate has good low temperature performance, cold stamping performance, weldability and machinability.
The latest standard is GB/T3274 for this steel plate, but at present many steel mills are still implementing GB/T1591.
GB/T3274 Q345B low alloy high strength steel plates chemical composition
Grade |
C % |
Si % |
Mn% |
P % |
S % |
|
Q345B |
≤0.20 |
≤0.55 |
1.00-1.60 |
≤0.040 |
≤0.040 |
GB/T3274 Q345B low alloy high strength steel plates mechanical property
|
Grade |
Thickness |
Yield Strength (Mpa) |
Tensile Strength |
Elongation |
Impact Energy |
|
|
|
|
|
Q345B |
≤ 16 |
345 |
470-630 |
21 |
20 |
34J |
|
Q345B |
>16-35 |
325 |
470-630 |
21 |
20 |
34J |
|
Q345B |
>35 |
295 |
470-630 |
21 |
20 |
34J |
Besides,BBNQ345B steel plates are widely used in bridges, vehicles, ships, buildings, pressure vessels and so on manufacture industry.
After the Winter Olympic Games, Shougang ski jumping platform will become the world's first permanently reserved and used ski big jump venue, which can host domestic and foreign big jump sports competitions, become a training ground for professional athletes and sports teams. It will be a permanent service to the development of ice sports.
