CTS-BD1

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A relatively-new steel from Carpenter Steels, designed to be nearly identical to GIN-1/G-2.

Sal Glesser posted on BladeForums.com in 2010:

"Another steel that was specially formulated to our request is Carpenter steel's new CTS-BD1. This is, in my opinion, an optimal formualtion for a blade steel. It is based on Hitachi's well known "Gingami I" (silver paper), also knows as G2 (early Spyderco's) and GIN 1 (current Spyderco's). CTS-BD1 has been "tweaked" by Carpenter's metallurgist, Rick Gleixner and the result is very nice, and USA made." [1]

CTS-BD1 consists of:

Carbon Chromium Cobalt Copper Manganese Molybdenium Nickel Nitrogen Phosphorus Silicon Sulfur Tungsten Vanadium
0.90 15.50 / / 0.60 0.30 / / / 0.37 / / 0.10

Some information from the Spyderco website:

High-performance American-made blade steels are propelling the quality and performance of today's knives to new and higher levels. A U.S.A company called Carpenter Steel recently entered the knife making arena, cutlery people noticed. Carpenter isn't a newcomer to alloy manufacturing just a new-neighbor in the community of blade steel manufacturing and they're launching a new family of alloys called CTS™ steels specifically for cutlery. One of those is CTS-BD1. CTS-BD1 is patterned on Gingami I (also known as G2), the gold-standard for Japanese cutlerers. Its superior edge retention and surface finish are machined to a fine edge and it heat-treats consistently.

References

  1. [1] original post


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