Recipe lists as Velium Conversion Dagger in tradeskill window recipe list (was visible in list at skill level 25).
Velium Conversion Dagger (Trival 15)
1 x Velium Smithy Hammer
1 x Velium Dagger
Returns:
1 x Small Brick of Velium
1 x Velium Smithy Hammer
Believe the recipe is no fail as at skill 25, failed zero times out of 20 attempts for conversion