Extra Hardness Test Table

Table 4 — Typical test forces Hardness testᵃ Low-force hardness test Microhardness test Hardness symbol Nominal value of the test force, F N Hardness symbol Nominal value of the test force, F N Hardness symbol Nominal value of the test force, F N — — — — HV 0,001 0,009 807 — — — — HV 0,002 0,019 61 — — — — HV 0,003 0,029 42 — — — — HV 0,005 0,049 03 HV 5 49,03 HV 0,2 1,961 HV 0,01 0,098 07 HV 10 98,07 HV 0,3 2,942 HV 0,015 0,147 1 HV 20 196,1 HV 0,5 4,903 HV 0,02 0,196 1 HV 30 294,2 HV 1 9,807 HV 0,025 0,245 2 HV 50 490,3 HV 2 19,61 HV 0,05 0,490 3 HV 100ᵃ 980,7 HV 3 29,42 HV 0,1 0,980 7 a Nominal test forces greater than 980,7 N may be applied.

A technical table lists hardness-test symbols and nominal test forces for standard, low-force, and microhardness tests. The attached caption “EKSTRA TWARDE” (“extra hard”) turns the dry engineering reference into an absurd reaction about something being exceptionally difficult or tough. EN: A technical table lists hardness-test symbols and nominal test forces for standard, low-force, and microhardness tests. The attached caption “EKSTRA TWARDE” (“extra hard”) turns the dry engineering reference into an absurd reaction about something being exceptionally difficult or tough.

• @rzeczyzabawne / 10670 2023-07-13