Scrap Bronze Valheim 1.0.20
Scrap Bronze is a crafting material that stacks to 30 in Valheim.
“It's old and oxidized but can be smelted and used again.”
Scrap Bronze is a material. The game describes it as old and oxidized, but able to be smelted and used again.
Each piece weighs 10, and you can carry up to 30 in a single stack. It cannot be teleported, so you will need to carry it yourself rather than send it through a portal.
Other material items
Acorns, 
Amber, 
Amber Pearl, 
Ancient Bark, 
Ancient Coin, 
Ancient Metal, 
Ashlands Gourmet Bowl, 
Ashwood, 
Asksvin Bladder, 
Asksvin Hide, 
Asksvin Neck, 
Asksvin Pelvis.