Hardness testing
At Precisionvast, we employ rigorous hardness testing to ensure our castings meet exact specifications, guaranteeing durability and quality for various applications
Hardness testing of investment castings
Hardness in investment cast materials is their innate trait, essentially their resistance to being indented. This characteristic is gauged by measuring how deep a casting is permanently indented. Varying cast alloys exhibit distinct hardness levels. Enhancing the hardness, and thereby the wear resistance of these castings, can be achieved through heat treatment as per customer requirements.
The hardness of an investment cast component is determined by measuring either the depth or the area of indentation using various testing methods. For precise results, the test area should be as level as possible, and it is advisable to conduct hardness tests on multiple areas of the same component.
Hardness Testing Methods of Precision Castings
At Precisionvast, we employ state-of-the-art, automated hardness testing equipment for our investment casting products. Our methods include:
Brinell Hardness Test
This traditional method uses a spherical indenter, typically 10 mm in diameter, pressed into the casting surface. The resulting impression determines the Brinell hardness (HB).
Rockwell Hardness Test
Utilizing a bullet-shaped or conical indenter, this test measures resistance to penetration, indicating hardness as a Rockwell scale number (HRC for steel).
Vickers Hardness Test
A diamond pyramid indenter is applied with a specific force, and the diagonals are measured post-testing to calculate hardness using the Vickers formula.
Hardness Testing Tool
Precisionvast ensures 100% hardness testing for castings with specified hardness requirements. Contact us for any hardness testing needs for your investment castings.
