The six most common types of steel used for cutting knives
Today steel and the main materials and most commonly used to make knives. Let’s find out the six best types of steel making knives available today.
Some of the most popular types of steel are knives
S30V
S30V contains a significantly higher content of carbon and vanadium than BG-42. Increasing carbon and vanadium helps keep the edge sharp and prevent scratches. S30V is the best steel knife today.
- Keep the edge very good
- Plasticity improves
- Good hardness – ideal range Rc 59.5-61
- Good gnawing
- The amount of carbon and vanadium is very high
| Carbon | Chromium | Vanadium | Molybdenum |
| 1.45 | 14 | 4 | 2 |
BG-42
BG-42 is a high performance stainless steel martensite used in aviation. Due to its high strength and high hardness (Rc 61-62), BG-42 is suitable for special purpose blades.
- The ability to keep sharp edges is very good
- High strength
- Rockwell Rc 61-62
- Relative resistance to corrosion
- Contains Vanadium, improves hardness, and gives a fine grain texture.
| Carbon | Silicon | Chromium | Molybdenum | Vanadium |
| 1.15 | 0.3 | 13.5 – 14.5 | 4.0 | 1.20 |
154CM
154CM is stainless steel with Molybdenum. Because 154CM allows for better sharpening of conventional (stainless) steel, it is a good choice for the needle blade for cutting much.
- Keep sharp edges very good
- Rockwell Rc 60-61 Hardness
- Excellent durability
- Relative resistance to corrosion
- Cheaper than BG-42 and S30V
| Carbon | Silicon | Chromium | Molybdenum |
| 1.05 | 0.35 | 13.5 – 14 | 4.0 |
420HC
420HC – contains more carbon than the standard stainless steel martensite 420. Carbon content, combined with high chromium content, gives scratch resistance and sharpness. This can not be confused with the 420 stainless steel standard. 420HC, which is heat treated according to the proprietary process by Paul Bos, is the perfect steel for knives with conventional functions.
- Keep good edges
- Grinding is good
- Good durability
- Excellent corrosion resistance
- Standard steel
| Carbon | Nickel | Silicon | Chromium | Manganese |
| 0.40 – 0.50 | 0.50 | 0.60 | 12 – 14 | 1 |
420J2
420J2 – Steel for general purpose with lower carbon content. 420J2 has relatively hardness, anti-corrosion and easy grinding. 420J2 is suitable for small to medium blade applications in everyday applications.
Easy grinding
Rockwell Hardness Rc 56-58
Advantages for production
Good gnawing
Easy to smooth, detailed
| Carbon | Nickel | Silicon | Chromium | Manganese |
| 0.36 – 0.45 | 0.60 | 0.60 | 12 – 14 | 0.80 |
17-7PH
17-7 PH – Stainless steel Chrommium / Nickel / Aluminum fast. Alloys used in high pressure applications require anti-corrosion by salt and water. 17-7PH is a harmony between martensite stainless steel (can heat treatment) and austenite (300 types – can not be tempered). This is obtained from the high content of Chromium / Nickel / Aluminum.
• Hold relative sharpness
• Very durable
• Excellent anti-corrosion
• Rc 54-56 hardness
| Carbon | Vanadium | Chromium | Molybdenum | Nickel | Aluminum |
| 0.07 | – | 17 | – | 7 | 1.25 |
The following is a general assessment based on three factors: the ability to keep sharpness, easy grinding, anti-corrosion of the six most common types of steel making knives.
Due to the hardness of the steel is too large rolls can not be processed. So, our company offers kinds of elastic / steel bar
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