I got all of this off of Bucks website, according to their info BG-42 and
154Cm could be harder than S30V but S30V is still considered better? Because it resharpens better??? Too much technical info! I think I will just buy one of each
Knife Know-How
Knife History Choosing the Right Knife Technical Data
Knife Sharpening Knife Care & Repair Knife Safety
Steel Specifics
Blade Steels used by Buck Knives
S30V - Developed primarily for the cutlery industry by Crucible Steel, S30V contains noticeably higher amounts of Carbon and Vanadium than does BG-42. This increase in Carbon and Vanadium provides superior edge-holding and abrasion resistance. S30V is the best blade steel available today. Superior edge holding
Improved ductility
Good hardness- ideal range Rc 59.5-61
Good corrosion resistance
Very high amounts of Carbon and Vanadium
Carbon Chromium Vanadium Molybdenum
1.45% 14.0% 4.0% 2.0%
BG-42 - A proprietary alloy of Timken Latrobe Steel, BG-42 is a high-performance, bearing-grade martensitic stainless steel used in the aerospace industry. Because of its high strength and ability to reach high Rockwell hardness (Rc 61-62), BG-42 is well suited for blades that are subjected to extreme use. Very good edge holding ability
High strength
Rockwell Rc 61-62
Fair corrosion resistance
Contains Vanadium, improving hardenability and a fine grain structure
Carbon Silicon Chromium Molybdenum Vanadium
1.15 .3 13.50 - 14.50 4.0 1.20
154CM – 154CM is a very high carbon stainless steel with the addition of Molybdenum. Because 154CM provides better edge retention than standard cutlery (stainless) steels, it is a good choice for blades that require heavier cutting applications.
Very good edge holding ability
Rockwell Rc 60-61
Good toughness when double tempered
Fair corrosion resistance
Less expensive than BG-42 and S30V
Carbon Silicon Chromium Molybdenum
1.05 .35 13.50 - 14.00 4.0
420HC - A higher carbon version of standard Type 420 martensitic stainless steel. The Carbon content, combined with the high Chromium content, provides good abrasion resistance and edge-holding. This steel is not to be confused with standard 420 stainless steel. 420HC is an excellent general purpose knife steel when heat-treated with our proprietary Paul Bos heat-treat process. Good edge holding ability
Resharpens well
Rockwell Rc 58
Good toughness
Very good corrosion resistance
Excellent standard knife steel
Carbon Nickel Silicon Chromium Manganese
.40-.50 .50 .60
12.00 - 14.00 1.0
420J2 - A lower carbon content, general-purpose stainless steel. 420J2 has fair hardness and corrosion resistance and high ease of resharpening. 420J2 is suited for knife blades with light to medium use and routine applications.
Resharpens well
Rockwell Rc 56-58
Good manufacturability
Good corrosion resistance
Fine-blankable
Carbon Nickel Silicon Chromium Manganese
.36-.45 .60 .60
12.00 - 14.00 0.80
17-7 PH - A Chromium/Nickel/Aluminum, precipitation-hardening, stainless steel. The alloy is used for high-strength applications requiring resistance to salt-water corrosion. 17-7PH offers a good compromise between Martensitic stainless steels (heat-treatable) and Austenitic (300 series) stainless steels (non heat-treatable). This is due to the high Chromium/Nickel/Aluminum content.
Moderate edge holding
Very good toughness
Excellent corrosion resistance
Rockwell Rc 54-56
Carbon Vanadium Chromium Molybdenum Nickel Aluminum
.07 - 17.00 - 7.0 1.25
Steel Type-- Edge Retention- -Ease of Resharpening --Corrosion Reisitance
S30V -------- OOOO ----------- - OOO ----- ------ - OO
BG42 -------- OOO ----------- -OO ------- ------ - OO
154CM -------- OOO ------------ OO ------------- - OO
420HC ---------- - OO - ------- - OOO ----- ----- -OOO
420J2 ---------- - OO -- ------- OOO ----------- -OO
17-7PH ----------- - O ------- -OOOO ---------- -OOOO
Best OOOO
Better OOO
Good OO
Fair O