Can 8620 be hardened?
8620 can be hardened to 1500° F followed by water quench. Carburize at 1650° – 1700° F in an appropriate carburizing medium and oil quench to harden. Tempering of carburized parts is done at 250° – 300° F and will result in the alloy having a core strength of approximately 135,000 psi minimum.
Is 8620 a low alloy steel?
A medium-strength, low-carbon alloy steel, 8620 contains good toughness and strength properties, along with good core strength. 8620 has a high case toughness and above average core toughness due to the nickel content.
Can 8620 be forged?
This alloy is forged at a start temperature of around 2250ºF (1230ºC) and could be forged down to approximately 1700ºF(925ºC.) The alloy is air cooled after forging. The method of forging AISI 8620 steel used is closed die forging, which is very suitable for small precision components.
Is 8620 steel stainless?
Both AISI 304 stainless steel and normalized SAE-AISI 8620 are iron alloys. They have 72% of their average alloy composition in common. There are 31 material properties with values for both materials.
What is ASTM A240 Type 304?
304 and 304L ASTM A240 stainless steel plate is a standard 18-8 material – meaning it contains 18% chromium and 8% nickel. 304 Stainless steel plate is one of the most versatile stainless steel materials available. It has excellent forming and welding characteristics.
What is 8620h steel?
AISI 8620H is a common, carburizing alloy steel used for a variety of medium-strength applications including gears, camshafts, fasteners, and chains/chain pins. Flexibility in hardening treatments allow optimization of case/core properties.
What does 8620 steel mean?
8620 round bar is a “triple alloy” steel also referred to as nickel chromium molybdenum steel. 8620 steel bar is largely composed of carbon, and is considered a sturdy alloy. The nickel properties result in toughness and ductility, and the chromium and molybdenum increase hardness penetration and wear.
What is the tensile strength of 8620 steel?
The 400°C tempering after brine-water quenching is found to be an optimal process for the SAE 8620 steel to exhibit an excellent overall performance. These 400°C tempered specimens can exhibit an ultimate tensile strength of 1100 MPa and a brittle-ductile transient temperature of -40°C.