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Conversion of Hardness-to-Hardness Steels per. ISO 18265 - 2013
Engineering Materials
Strength of Materials and Applications
Conversion of Hardness-to-Hardness Values for Cold Working Steels per. ISO 18265 - 2013
Hardness conversions are no substitute for direct measurements. WARNING - Hardness conversions are no substitute for direct measurements. These tables should be used with caution. Uncertainty values are not included in table data on conversions.
This table calculator presents conversion values for steels for cold working that have been quenched and tempered. These values are based on results of testing carried out on steels as specified in TGL 4393.
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a Brinell hardness values up to 450 HB were determined using a steel ball indenter, those above this value were determined Brinell hardness values up to 450 HB were determined using a steel ball indenter, those above this value were determined
with a hardmetal ball. with a hardmetal ball.
b Recalculated in 2012 by interpolation. Recalculated in 2012 by interpolation.
NOTE 1 Values in Values in parentheses are those lying outside the defined range of the standard test method but which may used parentheses are those lying outside the defined range of the standard test method but which may used
as estimates.
NOTE 2 If only HV If only HV is given without a number, then most probably HV30 is meant
Hardness conversions available
- HV - Vicker Hardness
- HBW - Brinell Scale
- HRC - Rockwell Scale HRC
- HRA - Rockwell Scale HRA
- HR45N - Rockwell Scale HR45N
- HR30N - Rockwell Scale HR30N
- HR15N - Rockwell Scale HR15N
- HRB - Rockwell Scale HRB
- HRF - Rockwell Scale HRF
- HR45T - Rockwell Scale HR45T
- HR30T - Rockwell Scale HR30T
- HR15T -Rockwell Scale HR15T
Cold working steels tested that define hardness table calculator values
Steel grade Steel grade (as in TGL 4393) |
Steel grade (as in Steel grade (as in ISO 4957 ISO 4957) |
|
Material no. |
Name
|
|
85CrMo7.2 |
1.2304 |
85CrMo7 |
UR85CrMo7.2 |
1.2304 |
85CrMo7 |
90MnV8 |
1.2842 |
90MnCrV8 |
101Cr6 |
1.3514 |
101Cr6LW |
UR101Cr6 |
1.3505a |
100Cr6 |
125CrSi5 |
1.2109 |
125CrSi5 |
| X125WMo6. |
1.3344a |
S6-5-3 |
210Cr46 |
1.2080 |
X210Cr12 |
210CrW46 |
1.2436 |
X210CrW12 |
a Chemical composition roughly equivalent to that specified in TGL 4393.
Uncertainty curves to be used for conversion are avaialble in ISO ISO 18265, Appendix C.
Source:
- ISO 18265:2013, Metallic materials — Conversion of Metallic materials - Conversion of hardness values
Related:
- Brinell Hardness Testing Brinell Hardness Testing in this test a standard constant load, usually 500 to 3,000 kg, is applied
- Brinell Hardness Testing Equation The Brinell hardness test uses a hardened steel ball indenter
- Case Hardening of Steel 220 Pages Premium Memebrship Required
- Methods of Measuring Case Depth Hardness
- Comparative Hardness Scales for Steel Table
- Hardness Conversion Conversion Tables Rockwell, Brinell hardness, Vickers hardness, Rockwell superficial, Shore Scleroscope
- Hardness Testing General Hardness test is a simple way to verify that a material has been properly heat-treated.
- Strength Properties of Metals - Iron and Steel Modulus of Elasticity, Ultimate Strength ultimate strength, yield point and modulus of elasticity data for steel and iron
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