Charts for superior items:

Weapon MaterialRegular OBDifficultyCost
Dwarven+5Mediumx5
Elven+10Hardx10
Orcish+15V Hardx10
Glass+20Ext Hardx50
Ebony+25Sheer Follyx50
Dragonbone+30Absurdx100

Light ArmorArmor TypesRegular DBDifficultyCost
Elven5-10+10Hardx10
Glass5-11+20Ext Hardx50
Dragonscale5-12+30Absurdx100
Yes, those ATs are deliberate

Heavy ArmorArmor TypesRegular DBDifficultyCost
Dwarven13-20+5Mediumx5
Orcish13-20+15V Hardx10
Ebony13-20+25Sheer Follyx50
Dragonbone13-20+30Absurdx100