Ads
related to: 4340 heat treatment specifications
Search results
Results from the WOW.Com Content Network
4340 steel is an ultra-high strength steel classified a medium-carbon, low-alloy steel. 4340 steel has high strength, ductility, toughness, creep resistance, and fatigue resistance relative to most other steels. Hardness ranging from 24 to 53 HRC can be achieved, depending on the heat treatment.
Quench polish quench (QPQ) is a specialized type of nitrocarburizing case hardening that increases corrosion resistance. It is sometimes known by the brand name of Tufftride, Tenifer or Melonite. [1]
AerMet 340 is hardened differently from the other two varieties. The first hardening application is a solution treatment at 1,775 °F (968 °C) for 1 hour. It is then quenched to a temperature of 150 °F (66 °C) over 1 to 2 hours. The material may then be cold treated, where the material is cooled to −100 °F (−73 °C) for 1 hour.
Tempering is a process of heat treating, which is used to increase the toughness of iron-based alloys. Tempering is usually performed after hardening, to reduce some of the excess hardness, and is done by heating the metal to some temperature below the critical point for a certain period of time, then allowing it to cool in still air. The exact ...
The Hollomon–Jaffe parameter (HP), also generally known as the Larson–Miller parameter, [1] describes the effect of a heat treatment at a temperature for a certain time. [2] This parameter is especially used to describe the tempering of steels, so that it is also called tempering parameter.
Solution treatment: As described in the section of Heat treatment cycle, the maraging steel is heated to a specific temperature range, after which it is quenched rapidly. In this step the alloying elements are dissolved, and a homogeneous microstructure is achieved.
This spicy baked pasta features leftover chicken tinga, a dish hailing from Puebla, Mexico. The rich tomato-chipotle sauce adds heat and creaminess to the dish. View Recipe. Chicken Parmesan Casserole
The final matte, non-glare finish meets or exceeds stainless steel specifications, is 85% more corrosion resistant than a hard chrome finish, and is 99.9% salt-water corrosion resistant. [31] After the Tenifer process, a black Parkerized finish is applied and the slide is protected even if the finish were to wear off.
Ads
related to: 4340 heat treatment specifications