What is S2 steel?
S2 alloy steel is a shock-resisting tool steel type. It retains good ductility even in hardened condition, which allows it to perform in applications where shock impact is transmitted to the alloy. Shock-resisting tool steels like this are designated as group S steels. These steels include S1, S2, S5, S6 and S7 types.
What is S2 material?
S2 Steel: S2 steel is harder than chrome vanadium or 8650 steel, but it is also less ductile and, as such, more prone to shattering. It is more expensive to produce than 8650 steel or chrome vanadium and this, along with its lower ductility, means it is only used by a few manufacturers.
How do you temper S2 steel?
Heat Treatment S2 tool steels are slowly preheated to 649ºC (1200ºF) and then directly heated by increasing the temperature to 871ºC (1600ºF). This is followed by holding the steels for 10 to 20 mins and quenching in brine or water.
What is the chemical composition of tool steel?
Tool steels comprise carbide-forming elements such as chromium, vanadium, molybdenum and tungsten in different combinations. They also contain cobalt or nickel which improves their high-temperature performance.
Is S2 better than CRV?
A: S2 is a shock resistant steel and is tougher but less strong, CRV isn’t as tough as S2 (resistant to chipping in this context) but is stronger–will bend/flex less. Sort of like comparing impact sockets to chrome vanadium sockets.
Is S2 steel impact rated?
If you can see “S2” stamped anywhere on the shaft, you can buy and use with confidence. One word of caution, if you are using your bits with an impact driver make sure they are impact rated. Impact bits are often made from different alloys to stand up to the constant impact forces being applied.
Is S2 steel stainless?
Both AISI 304 stainless steel and SAE-AISI S2 steel are iron alloys. They have 71% of their average alloy composition in common. There are 23 material properties with values for both materials.
How do you anneal A2?
A2 should always be annealed after forging. Heat slowly to 1550-1600°F, hold until entire mass is heated through, and cool slowly in the furnace (40°F per hour) to about 1000°F, after which cooling rate may be increased. Suitable precautions must be taken to prevent excessive carburization or decarburization.
What type of steel is HSS?
High-speed steel
High-speed steel (HSS or HS) is a subset of tool steels, commonly used as cutting tool material. It is often used in power-saw blades and drill bits. It is superior to the older high-carbon steel tools used extensively through the 1940s in that it can withstand higher temperatures without losing its temper (hardness).
How do you anneal A2 steel?
A2 tool steels are annealed at 857°C (1575°F) and then cooled slowly in the furnace at a rate of 4°C (40°F) per hour or less.
What is the hardness of A2 tool steel?
57 – 62 HRC
A2 tool steel properties Popular hardness ranges for A2 run between 57 – 62 HRC with a yield strength range between 185 ksi – 230 ksi.