Butterfly Knife | Case Hardened

All finishesInspect

Butterfly Knife | Case Hardened
Wear range
0.00–1.00
Released
2014-06-23
Paint kit
44
Finish style
Patina
Sources
Operation Breakout Weapon Case
Drop chance (estimate)
Operation Breakout Weapon Case:Any rare special item 0.256%; exact finish probability undisclosed

Steam / C5GAME

CNY

Introduction

Case Hardened knives are among the most iconic and sought-after finishes in CS2. The distinctive blue, purple, and gold patterns created by the case hardening process make each knife unique. But with great variety comes great complexity—especially when it comes to evaluating patterns and determining value. In this guide, we'll break down everything you need to know before buying a Case Hardened knife.

What Makes Case Hardened Knives Special?

The Case Hardened finish is applied through a process of heating the metal with charcoal, resulting in a colorful, oxidized surface. This creates a one-of-a-kind pattern on each knife, with some patterns being far more desirable than others. The most coveted are the "blue gems"—knives with a high percentage of solid blue on the playside. These can fetch thousands of dollars over market price.

Inspecting a Case Hardened Knife

When inspecting a Case Hardened knife, the most important factor is the pattern index. This determines the exact placement and amount of blue, gold, and purple. The playside (the side visible when holding the knife) is what matters most. You'll want to check for:

  • Blue percentage: The more blue, the better. A full blue playside is the holy grail.
  • Pattern placement: Blue should ideally cover the center or tip of the blade.
  • Wear: Factory New and Minimal Wear are rare and command premiums. Field-Tested is common but can still have great patterns.

Use the in-game inspect feature to see how the pattern looks from different angles. Remember that lighting can affect the appearance, so check in multiple environments.

Wear and Float

Case Hardened knives have a wear range of 0.0 to 1.0, meaning they can be found in all conditions from Factory New to Battle-Scarred. However, due to the way the finish is applied, wear doesn't affect the pattern as much as it does on other skins. The main impact is on the overall shine and scratches. Factory New versions are extremely rare and expensive, while Battle-Scarred ones are more affordable but may have visible scratches.

Is It Worth Buying?

Whether a Case Hardened knife is worth buying depends on your goals:

  • For profit: Blue gems and rare patterns can be excellent investments, but you need to know the market. Prices can fluctuate wildly.
  • For personal use: If you love the unique look, any pattern can be enjoyable. Just be aware that some patterns are harder to resell.
  • For trading: Case Hardened knives are highly liquid, but the value is subjective. Always get multiple opinions before trading.

Expert Tips

  • Pattern indexes matter: Some patterns are known to be "blue gems" (e.g., #387, #670 for certain knives). Research before buying.
  • Check both sides: The backside can also have blue, but playside is king.
  • Wear isn't everything: A low-float Field-Tested with a great pattern can be better than a high-float Minimal Wear with a bad pattern.
  • Use C5GAME for safe trades: C5GAME offers a secure platform to buy and sell Case Hardened knives. Always compare prices on Steam Market and C5GAME.

Conclusion

Case Hardened knives are a fascinating niche in CS2. With the right knowledge, you can find a beautiful knife or a profitable investment. Remember to inspect carefully, research patterns, and consider wear. Whether you're a collector or a trader, these knives offer endless possibilities.


Expert ramblings: I've seen people pay insane amounts for a tiny blue spot, and others get a great deal on a mostly gold knife. The key is to know what you're looking for. Don't rush—patience pays off in the Case Hardened market.