Each recipe is orange until its yellow rank and grey from its grey rank. When the ranks differ, it turns green somewhere between the two; the client files give both ranks but not that point. Equal ranks go straight to grey.

Engineering: Parts
RecipeMakesReagentsNeedsSkill-up
Rough Blasting Powder
Rough Blasting PowderYellow 20Grey 40
SAF-T TabsTaught by Schematic: SAF-T Tabs, requires 25
SAF-T TabsQuantity not confirmedYellow 25Grey 30
Handful of Copper Bolts
Handful of Copper Bolts
  • Blacksmith Hammer
  • Anvil
Yellow 45Grey 60
Arclight Spanner
Arclight Spanner
  • Blacksmith Hammer
  • Anvil
Yellow 70Grey 90
Copper Tube
Copper Tube
  • Blacksmith Hammer
  • Anvil
Yellow 80Grey 110
Coarse Blasting Powder
Coarse Blasting PowderYellow 85Grey 95
Copper Modulator
Copper Modulator
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 95Grey 125
EZ-Thro WrapTaught by Schematic: EZ-Thro Wrap, requires 100
EZ-Thro WrapQuantity not confirmedYellow 100Grey 105
Bronze Tube
Bronze Tube
  • Blacksmith Hammer
  • Anvil
Yellow 105Grey 155
Silver Contact
5 × Silver ContactYellow 110Grey 140
Heavy Blasting Powder
Heavy Blasting PowderYellow 125Grey 145
Whirring Bronze Gizmo
Whirring Bronze Gizmo
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 125Grey 175
Sandpaper
SandpaperYellow 130Grey 155
No Slip SAF-T PaddingTaught by Schematic: No Slip SAF-T Padding, requires 145
No Slip SAF-T PaddingQuantity not confirmedYellow 145Grey 150
Bronze Framework
Bronze FrameworkYellow 145Grey 195
Gold Power Core
3 × Gold Power Core
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 150Grey 190
Iron Strut
Iron Strut
  • Blacksmith Hammer
  • Anvil
Yellow 160Grey 180
Gyrochronatom
Gyrochronatom
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 170Grey 210
SAF-T BellTaught by Schematic: SAF-T Bell, requires 175
SAF-T BellQuantity not confirmed
  • Blacksmith Hammer
  • Anvil
Yellow 175Grey 180
Solid Blasting Powder
Solid Blasting PowderYellow 175Grey 195
Gyromatic Micro-Adjustor
Gyromatic Micro-Adjustor
  • Blacksmith Hammer
  • Anvil
Yellow 175Grey 215
EZ-Thro Fireproof FuseTaught by Schematic: EZ-Thro Fireproof Fuse, requires 190
EZ-Thro Fireproof FuseQuantity not confirmed
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 190Grey 195
Mithril Tube
Mithril Tube
  • Blacksmith Hammer
  • Anvil
Yellow 195Grey 235
Unstable Trigger
Unstable Trigger
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 200Grey 240
Goblin Rocket Fuel Recipe
Recipe: Goblin Rocket FuelGrey 205
Inlaid Mithril Cylinder Plans
Plans: Inlaid Mithril CylinderGrey 205
SAF-T CasingTaught by Schematic: SAF-T Casing, requires 215
SAF-T CasingQuantity not confirmed
  • Blacksmith Hammer
  • Anvil
Yellow 215Grey 220
Mithril Casing
Mithril Casing
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 215Grey 255
EZ-Thro Tru-TriggerTaught by Schematic: EZ-Thro Tru-Trigger, requires 240
EZ-Thro Tru-TriggerQuantity not confirmed
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 240Grey 245
Dense Blasting Powder
Dense Blasting PowderYellow 250Grey 260
Truesilver TransformerTaught by Schematic: Truesilver Transformer, requires 260
Truesilver Transformer
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 270Grey 280
SAF-T TubeTaught by Schematic: SAF-T Tube, requires 275
SAF-T TubeQuantity not confirmed
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 275Grey 280
Thorium WidgetTaught by Schematic: Thorium Widget, requires 260
Thorium Widget
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 280Grey 300
EZ-Thro ShellTaught by Schematic: EZ-Thro Shell, requires 285
EZ-Thro ShellQuantity not confirmed
  • Blacksmith Hammer
  • Anvil
Yellow 285Grey 290
Thorium TubeTaught by Schematic: Thorium Tube, requires 275
Thorium Tube
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 295Grey 315
Delicate Arcanite ConverterTaught by Schematic: Delicate Arcanite Converter, requires 285
Delicate Arcanite Converter
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 305Grey 325

From the Forever beta client files, build 1.60.1.70630: the SkillLine, SkillLineAbility, TradeSkillCategory, SpellReagents, SpellEffect, SpellTotems, SpellCastingRequirements and ItemEffect tables.

One more recipe in this category is encrypted in this build.