67-Layer Stainless Damascus San Mai Billet – Nebula Pattern – Pre-Hardened 58–60 HRC

67-Layer Stainless Damascus San Mai – Nebula Pattern

Pre-hardened San Mai knife steel with a hard stainless steel core clad on both sides with 67-layer stainless Damascus in our distinctive Nebula pattern.

The San Mai construction gives you a solid core running through the centre of the billet to form the cutting edge, while the stainless Damascus cladding creates the decorative pattern on the sides of the finished blade.

Supplied already hardened and tempered to approximately 58–60 HRC, this steel is ready for stock-removal knife making without additional heat treatment.

The Nebula pattern features irregular flowing shapes, loops and clustered details across the Damascus cladding, giving each finished blade an organic, individual appearance. The pattern becomes more pronounced after grinding, finishing and etching.

Cut out your blade profile, grind the bevels, finish to your preferred grit and etch to bring out the contrast in the stainless Damascus cladding. Keep the steel cool while grinding to avoid affecting the existing heat treatment.

Specifications:

• Construction: San Mai / laminated core
• Cladding: 67-layer stainless Damascus
• Pattern: Nebula
• Steel composition: 9Cr18MoV / 10Cr15CoMoV
• Hardness: Approx. 58–60 HRC
• Condition: Pre-hardened and tempered
• Suitable for stock-removal knife making

Available sizes:

• 3 x 30 x 220mm
• 3 x 50 x 330mm
• 4.5 x 50 x 330mm

As this steel is already hardened, drilling and machining will be more difficult than with annealed steel. Use suitable tooling and keep the billet cool during grinding.

Pattern placement and appearance will vary slightly from billet to billet.