As the title suggests, I want to know exactly what type of metal is used for 
1. The `drivers spring
2. The average spring
3. The weakest spring

I think you should ask a spring company

---

omega2663 nice!

The correct question should be what weights/spring rates the springs have. Type of metal is steel in general.
Only way I see answers is if you open up drivers and get the specs yourself. IE destroying the driver.
Closing because this thread is likely to ever answer "my" question since we have no access to TT factory specs for springs.

---

If you need to contact me regarding an event, phoning is best. If you are running late for a tournament, call me. Ask for my phone number via PM or in person at any tournament  ^_^

Looking for
NIB 1st Gen Hasbro Plastics not in list below

Plastic Bey Collection Hasbro

Spoiler (Click to View)

New In Box NFS/NFT
x2 Brand new Clear Hasbro Stadium 2001
Dragoon S
Dragoon S (green stickers) Rare? PM me if you know
Starter Dragoon
Dranzer S
Black Dranzer
Master Dranzer
Ultimate Frostic Dranzer
Draciel S
Master Draciel
Metal Draciel
Dragoon Fighter
Guardian Driger
Gekiryu-Oh
Manta Diver
Orca Diver
Spark Knight x2
HMS Hopper Attacker
HMS Phantom Fox MS
HMS Advance Avenger
EG Zeus
EG Driger G
BBA CS Dranzer V2
more still missing in storage = (

Loose
Black Dranzer
Seaborg x3
Master Draciel x3
EG Dragoon GT
lots more still missing in storage = (

Spring Launcher Silver
Spring Launcher Red x3
Custom Grip Dranzer
Custom Grip Dragoon

Fav Plastic - Spark Knight (I had 4, attack ring kept breaking)
Fav Limited - Burn Cancer 230BWD & Duo Cancer 160WD (now banned)
Fav Standard - cookie-cutter wyvang :( & Duo Aquario SP230EWD :)
Fav Burst - Odin Heavy Revolve (laugh all you want)
Fav Animes - One Piece, Dot Hack (all), Sword Art Online, Speed Grapher
Fav RPG/Adventure/Racer - Lunar 2: Eternal Blue Complete/Zelda OOT/Hydro Thunder