Most Popular
-
1
$200m a year, 700,000 tons of rice, space tech: The deal for North Korea in joining Russia’s war
-
2
Korean battery makers brace for impact of US election
-
3
Who is writer of Hybe's controversial internal report?
-
4
After opposition U-turn, Korea to repeal plan for financial capital gains tax
-
5
[AtoZ of Korean mind] Ever noticed some Koreans talk to themselves?
![[AtoZ of Korean mind] Ever noticed some Koreans talk to themselves?](//res.heraldm.com/phpwas/restmb_idxmake.php?idx=644&simg=/content/image/2024/11/03/20241103050186_0.jpg&u=20241103174756)
![[AtoZ of Korean mind] Ever noticed some Koreans talk to themselves?](http://res.heraldm.com/phpwas/restmb_idxmake.php?idx=644&simg=/content/image/2024/11/03/20241103050186_0.jpg&u=20241103174756)
-
6
Will South Korea go back to banning phones in classrooms?
-
7
[Breaking] North Korea fires short-range ballistic missiles: JCS
![[Breaking] North Korea fires short-range ballistic missiles: JCS](//res.heraldm.com/phpwas/restmb_idxmake.php?idx=644&simg=/content/image/2024/11/05/20241105050038_0.jpg&u=20241105142212)
-
8
Amid record-low approval rating, Yoon forgoes Assembly budget address
-
9
Scandal-hit ex-lawmaker denies corruption claims as pressure on Yoon mounts
-
10
Gangnam Station ramming suspect to face detention
![[Breaking] North Korea fires short-range ballistic missiles: JCS](http://res.heraldm.com/phpwas/restmb_idxmake.php?idx=644&simg=/content/image/2024/11/05/20241105050038_0.jpg&u=20241105142212)
Hyundai Steel said Wednesday it has developed a premium 1.5 GPa martensitic steel plate to be used on electric vehicles.
According to South Korea’s No. 2 steelmaker, the new plate is flatter and has higher crack resistance than any other in the same product category, allowing it to be used on battery containers for EVs, bumpers, and roof sides.
Usually, a 1.5 GPa martensitic steel plate is not flat enough and cracks easily due to hydrogen penetration.
But Hyundai Steel used a heat technology that replaces rapid cooling normally used when manufacturing the plate, allowing it to be made flatter. It also minimized hydrogen penetration in the process to reduce cracking.
“With this development, we can now enter the ultrahigh-strength cold rolled steel plate market dominated by European or American steelmakers,“ an official said. ”By supplying the product to not only Hyundai Motor and Kia but to other global carmakers, we hope to take the lead in the EV-related material market."
According to South Korea’s No. 2 steelmaker, the new plate is flatter and has higher crack resistance than any other in the same product category, allowing it to be used on battery containers for EVs, bumpers, and roof sides.
Usually, a 1.5 GPa martensitic steel plate is not flat enough and cracks easily due to hydrogen penetration.
But Hyundai Steel used a heat technology that replaces rapid cooling normally used when manufacturing the plate, allowing it to be made flatter. It also minimized hydrogen penetration in the process to reduce cracking.
“With this development, we can now enter the ultrahigh-strength cold rolled steel plate market dominated by European or American steelmakers,“ an official said. ”By supplying the product to not only Hyundai Motor and Kia but to other global carmakers, we hope to take the lead in the EV-related material market."
![[Herald Review] TXT concludes third world tour, opens new chapter](http://res.heraldm.com/phpwas/restmb_idxmake.php?idx=642&simg=/content/image/2024/11/04/20241104050731_0.jpg&u=)