Technical document

    Hardness conversion Shaw hard comparison table

    2017-02-08 11:53:25 hooren

    Shore hardness D

    Shore hardness C

    Shore hardness A

    Polymer type

    90



    Hard molding

    86




    83



    Medium hardness plastic

    80




    77




    74




    70




    65

    95



    60

    93

    98

    Flexible plastic

    55

    89

    96


    50

    80

    94


    42

    70

    90


    38

    65

    86

    rubber

    35

    57

    85


    30

    50

    80


    25

    43

    75


    20

    36

    70


    15

    27

    60


    12

    21

    50


    10

    18

    40


    8

    15

    30


    6.5

    11

    20


    4

    8

    10


    The higher the number of plastic hardness, the harder the material, and the smaller the number, the softer the material.



    Shore hardness HA, HD and Shore hardness HR(R scale) plastic hardness value conversion table

    HA

    HD

    HR

    species


    100

    130

    Superhard plastic


    99

    129


    98

    128


    97

    127


    96

    126


    95

    125


    94

    124


    93

    123


    92

    122


    91

    121


    90

    120

    Rigid plastic


    89

    116


    88

    114


    87

    112


    86

    110


    85

    108


    84

    106

    Medium hard plastic


    83

    104


    82

    102


    81

    100


    80

    98


    79

    96


    78

    94


    77

    92


    76

    90


    75

    86


    74

    82


    73

    79


    72

    76


    71

    73


    70

    70


    69

    68


    68

    66


    67

    64


    66

    62

    Flexible plastic

    98

    65

    60


    64

    58


    63

    56

    97

    62

    54


    61

    52

    96

    60

    50


    59

    48


    58

    46

    95

    57

    44


    56

    42

    94

    55

    40

    94

    54

    38


    53

    36


    52

    34

    93

    51

    32


    50

    31


    49

    --

    92

    48

    30


    47

    --


    46

    29

    91

    45

    --


    44

    28


    43

    --

    90

    42

    27

    89

    41


    88

    40


    87

    39


    rubbers

    86

    38


    86

    37


    --

    36


    85

    35


    84

    34


    83

    33


    82

    32


    81

    31


    80

    30


    75

    25


    70

    20


    60

    15


    50

    12


    40

    10


    30

    8


    20

    6.5


    10

    4



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