All types of stainless are available, note that S30V is preferred for knives. Here is some good information, below!
Very Wear-Resistant 420V Stainless Steel
The addition of vanadium and carbon gives 420V excellent wear resistance. It can replace tool steels in highly abrasive applications.
Multipurpose 304 Stainless Steel
From cookware to chemical-processing equipment, 304 is the most commonly used stainless steel.
High-Temperature Multipurpose 309 Stainless Steel
Often used in heat exchangers and furnaces, 309 provides good corrosion resistance at elevated temperatures because of its high levels of chromium and nickel.
High-Strength Multipurpose 301 Stainless Steel
Able to withstand repeated stress and wear, 301 provides the strength required for applications such as springs and fasteners.
Economy-Grade 430 Stainless Steel
Use 430 for decorative and light-duty applications, rather than outdoors or in extreme temperatures.
Weldable 321 Stainless Steel
When an application requires welding, 321 is the stainless steel of choice because its titanium content preserves corrosion resistance around the welded area.
Super-Corrosion-Resistant 316 Stainless Steel
Molybdenum gives 316 excellent corrosion resistance for use in a variety of marine and chemical-processing applications.
Strengthened Corrosion-Resistant A286 Stainless Steel
Combining the corrosion resistance of 316 with titanium for added strength, A286 is often used to make fasteners and engine components.
High-Strength Corrosion-Resistant 2205 Stainless Steel
Often used in caustic, high-pressure applications, 2205 resists cracking even when faced with a combination of tensile stress, corrosive chemicals, and heat.
Easy-to-Machine 303 Stainless Steel
For fabricating fittings and fasteners, 303 machines quickly without sticking to cutting tools.
Very Easy-to-Machine 416 Stainless Steel
One of the most machinable stainless steels available, 416 contains sulfur for fast machining without clogging cutting tools. It’s used for gears, screws, and shafts.
Wear-Resistant 410 Stainless Steel
Often used for fasteners and valves, 410 withstands abrasion and can be heat treated for greater hardness.
Mold-Quality Wear-Resistant 420 Stainless Steel
This hard material can be finely polished to a very smooth surface, making it suitable for fabricating molds.
Ultra-Hard Wear-Resistant 440C Stainless Steel
One of the hardest stainless steels after heat treating, 440C offers excellent wear and abrasion resistance. It's often used for bearings, valves, and knife blades.
Impact- and Wear-Resistant 440A Stainless Steel
Resistant to damage from impact and abrasion, 440A is often used for cutlery and valve components.
Blade-Quality Wear-Resistant S30V Stainless Steel
With excellent strength and wear resistance, S30V is a preferred material for knives and cutlery.
Corrosion-Resistant High-Strength 17-4 PH Stainless Steel
With a higher chromium content than 15-5 PH, 17-4 PH offers better corrosion resistance as well as high strength. Also known as 630 stainless steel.