Indentation Hardness of Metallic Materials ASTM A833
ASTM A833 test method covers the determination of indentation hardness of metallic materials using a comparison hardness tester. This test method provides information on metallic materials related to their tensile strength, wear resistance, ductility, and heat treatment.
ASTM A833 is an empirical, dynamic indentation hardness test method that can be used to determine the attributes of metallic materials such as tensile strength and wear resistance. The ASTM A833 test method is primarily used to test items that are too large or bulky to be tested in conventional testing machines. Calibration of comparative test bars can be used to determine hardness numbers for comparison.
For ASTM A833 test, a comparative test bar is assembled into the apparatus maintaining minimum distance of 12.5 mm of the indentation diameter from edges of the part. Apparatus is equipped with a presetting bar. The apparatus is placed on the surface of the component to be tested with an impact load of approximately 2 kg hammer. The short blow is applied in order to avoid rebound, and thus, a double blow for damaging sharp edges of the ball impression. Hardness of part is determined by using both (test bar and part) impression diameter by employing a calibration device.
The diameter of the impression ball shall be 10 ± 0.01 mm according to ASTM A833. The ball shall be made from steel hardened within the range of 60 to 67 HRC.
The value of indentation hardness is reported in SI units and is considered as standard.
Both the diameters of each impression at right angles to each other need to be measured to within 0.05 mm, and their mean value used as the basis for subsequent result calculation.
ASTM E572 test method covers the analysis of stainless and alloy steels by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). It provides rapid, multi-element determinations with sufficient accuracy to assure product quality.
The ASTM D2674 is a standard test method for the analysis of sulfochromate etches solution used in the surface preparation of aluminum. The ASTM D2674 standard specifies a method for determining the efficacy of an etchant used to prepare the surface of aluminum alloys for subsequent adhesive bonding.
An immunological method for quantization of Hevea Natural Rubber (HNRL) proteins using rabbit anti-HNRL serum. Rabbits immunized with HNRL proteins react to the majority of the proteins present, and their sera have the capability to detect most if not all the proteins in HNRL.
ASTM G65 measures the resistance of metallic materials to abrasion using the dry sand/rubber wheel apparatus. The quality, durability, and toughness of the sample are determined using this test. Metallic materials are ranked in their resistance to scratching abrasion under a controlled environment.
ASTM E2141 test methods provide accelerated aging and monitoring of the performance of time-dependent electrochromic devices (ECD) integrated in insulating glass units (IGU). This test helps to understand the relative serviceability of electrochromic glazings applied on ECD.
ASTM C724 test method is used in analyzing the quality and ease of maintenance of a ceramic decoration on architectural-type glass. This test method is useful in the acknowledgment of technical standards.
Send us a request
Process for testing
You share material and testing requirements with us
We ensure your sample pick-up in an ensured manner
We deliver test report to your inbox
Just share your testing requirements and leave the rest on us!