How stable is A2 during heat treat?
It’s highly wear-resistant and moderately tough. Like D2, it is incredibly resistant to distortion during heat treating and is moderately machinable and grindable. Popular hardness ranges for A2 run between 57 – 62 HRC with a yield strength range between 185 ksi – 230 ksi.
How hard is A2 steel before heat treat?
A2 is a 5% Chromium steel which provides high hardness after heat treatment with good dimensional stability. It is heat treatable and will offer a hardness in the range 57-62 HRC.
What temperature should I heat treat A2?
A2 tool steels are heat treated at temperatures ranging from 177°C (350°F) for Rockwell C 62 to 538°C (1000°F) for Rockwell C 56 and then tempered.
Does A2 steel need to be heat treated?
A2 should always be annealed after forging. Heat slowly to 1550-1600F, hold until entire mass is heated through, and cool slowly in the furnace (40F per hour) to about 1000F, after which cooling rate may be increased. Suitable precautions must be taken to prevent excessive carburization or decarburization.
What does A2 steel mean?
AISI A2 Tool Steel is an air-hardening grade of steel that contains 5% chromium. A2 is noted for its good toughness and excellent dimensional stability in heat treatment. These characteristics make it a versatile tool steel that combines good performance and price.
What is A2 tool steel?
How do you heat treat A2 steel?
Heat Treatment A2 tool steels are heated slowly to 788°C (1450°F) and this is followed by increasing the temperature to 954°C (1750°F). A2 tool steels are further held at 954°C (1750°F) for 30 to 45 minutes and finally removed from the furnace and cooled.
How do you temper A2 tool steel?
How Do You Temper A2 Tool Steel? On occasion, flash oil-quenching is used on larger sections of A2. These pieces are tempered immediately after they have cooled to about 150°F. Ideally, A2 should be tempered at 350°-400°F and held about two hours per inch of the greatest cross-section.
How good is A2 tool steel?
A2 is a mid-range Air-Hardening tool steel, it’s known for its good toughness (its tougher than D2 Steel or M2 Steel ), and it has a wear resistance in between O1 Steel and D2, it’s used for Punches and dies, chuck jaws, cutting tools for woodworking, tooling for plastic injection, dowel pins, hammers, industrial knives, and gage.
What are the characteristics of tool steel?
Toughness
What is the hardness of A2 tool steel?
AISI A2 tool steel is a 5% chromium medium alloy cold work tool steel possessing sufficient hardenability to be air hardened to 60 Rc surface hardness level with good depth of hardening.
What are properties of tool steel?
Tool steel is a type of carbon alloy steel that is well-matched for tool manufacturing, such as hand tools or machine dies. Its hardness, resistance to abrasion and ability to retain shape at increased temperatures are the key properties of this material. Tool steel is typically used in a heat treated condition which provides increased hardness.