The Beta Gate is the second and fairly tough Galaxy Gate that consists of normal aliens. Strength, cargo and rewards of aliens are doubled.
48 parts are needed to build this gate.

NPCs waves
40 Streuners (Double HP/Reward/Dmg)
40 Lordakias (Double HP/Reward/Dmg)
40 Mordons (Double HP/Reward/Dmg)
80 Saimons (Double HP/Reward/Dmg)
20 Devolariums (Double HP/Reward/Dmg)
80 Kristallins (Double HP/Reward/Dmg)
20 Sibelons (Double HP/Reward/Dmg)
80 Sibelonits (Double HP/Reward/Dmg)
16 Kristallons (Double HP/Reward/Dmg)
30 Protegits (Double HP/Reward/Dmg)
Rewards
40,000 Uridium or 52,797 Uridium if you include NPCs
40,000 UCB-100
200,000 Honor
8,000,000 EP
4 Repair Credits
4 Log-disks
Beta ring
1 Kronos Part