302.1 - Microindentation Hardness (block form)

These SRMs are for use in calibrating and checking the performance of microhardness testers and may be used in conjunction with ASTM E 384. SRMs 1893 through 1907 are 1.25 cm ´ 1.25 cm (SRM 2798 is 1.35 cm ´ 1.35 cm) and were made by electroforming the test metal on AISI 1010 steel substrate. SRMs 2830 and 2831 are intended to meet the needs of the structural, electronic and biomedical ceramics communities.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and uncertainties, the certificate is the only official source.


- Certified values are normal font
- Reference values are italicized
- Values in parentheses are for information only


Detail - Detail    Certificate - Certificate    Report of Investigation - Report of Investigation    MSDS - MSDS    Data Files - Data Files    Questionaire - Questionnaire


  SRM Description Unit of Issue    

Hardness, nominal (kgf/mm2)


Load (Newtons)
Detail Certificate MSDS 1893
Now Selling
Copper Microhardness Test Block (Knoop) each   125 0.245, 0.490, 0.981
Detail Certificate MSDS 1894a
Now Selling
Vickers Microhardness of Copper each   125 0.245, 0.490, 0.981
Detail Certificate MSDS 1895
Now Selling
Nickel Microhardness Test Block (Knoop) each   600 0.245, 0.490, 0.981
Detail Certificate MSDS 1896b
Now Selling
Vickers Microhardness of Nickel each   600 0.245, 0.490, 0.981
Detail Certificate MSDS 1905
Now Selling
Nickel Microhardness Test Block (Knoop)  each   600 2.943
Detail Certificate MSDS 1906
Now Selling
Nickel Microhardness Test Block (Knoop) each   600 4.905
Detail Certificate MSDS 1907
Now Selling

Nickel Microhardness Test Block (Knoop) 

each   600 9.81
Detail Certificate MSDS 1908
Now Selling
Vickers Microhardness of Nickel each   600 2.943
Detail Certificate MSDS 1909
Now Selling
Vickers Microhardness of Nickel each   600 9.81
Detail Certificate MSDS 2798a
Now Selling
Vickers Microhardness of Nickel each   600 4.905
Detail Certificate MSDS 2828
Now Selling
Knoop Microhardness of Steel each   800 4.90
Detail Certificate MSDS 2829
Now Selling
Vickers Microhardness of Steel each   800 4.90
Detail Certificate MSDS 2830
Now Selling
Microhardness, Ceramic-Knoop each   1500 19.6
Detail Certificate MSDS 2831
Now Selling
Vickers Hardness, Ceramics and Hardmetals each   1530 9.8