San Mai Blade Blank — K340 Core with Copper Interlayer & Stainless Cladding

San Mai Blade Blank — K340 Core with Copper Interlayer & Stainless Cladding

This handcrafted San Mai blade blank features a Böhler K340 tool steel core, hardened to 62 HRC, enclosed between layers of corrosion-resistant stainless steel. A distinctive copper interlayer enhances structural bonding and adds a bold, warm visual contrast along the lamination line — making this blade a functional and artistic centerpiece for your next knife build.

Specifications:

• Overall Length: 215 mm

• Blade Length: 130 mm

• Blade Width: 25 mm

• Thickness: 3.6 mm

• Weight: 72 g

• Core Steel: Böhler K340 (62 HRC)

• Cladding: Stainless steel

• Interlayer: Copper

The result is a razor-sharp, wear-resistant edge with excellent corrosion protection, backed by a visually striking copper line. Ideal for premium custom knives that stand out in performance and craftsmanship.

Handcrafted by Brothers Berezhnye — where tradition meets innovation.