0
It can't be accurately converted.
The softest metal on the C scale gets a 1 rating.
That 1 rating is the equivalent of 82 on the B scale, which is the Rockwell scale used for copper.
Copper and all it's alloys are down around the 40 range of the B scale.
And you can't assume that a B scale 40 is half of a C scale 1, either. Since the tests use different metal ball sizes, it's an issue of being an unequal scale.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is the Hardness Rockwell C scale?
This is a method used to determine the hardness of a metal. If you know the type of metal and the hardness, this will tell you the Tensile Strength of the metal and how well it was heat treated. The method uses a ball or a pin to strick the metal and leave a small indention. The size and depth that the ball makes in the metal is inversely proportional to the hardness. Using the scale, you can then determine if the part has completed the proper heat treatment as required by the Engineering drawing. There are 3 Rockwell scales: A, B, C. Rockwell C scale is for the hardest of metals such as steel. Rockwell B is for metal such as soft aluminum and A is for even softer metals.
What rockwell c hardness is grade 10.9?
The Rockwell C Hardness for a grade 10.9 fastener is 32 - 39HRC or 320 - 380Hv10
What is Rockwell C?
Answer Rockwell C is a method to measure the hardness of a metal object. The hardness of the metal is a direct correlation to its strength properties: i.e., Tensile Strength. The scales can be found in any engineering or matierals reference books. A test devise is used to strick a metal object with a small pointed hammer. The size of the dimple is compared to a chart to give you the Rockwell C hardness value. There are 3 charts for measuring hardness: A scale, B scale and Cscale. Rockwell C is for the hardest of metals such as very high strength steel. Rockwell A is for much softer materials including something as soft as clay, I believe. During manufacture, a hardness test will be performed to ensure that the finished product meets the design engineer's criteria to ensure the part.
What is the hardness of 68 HRC mean?
The Rockwell C Hardness system uses "HRC" as a measure of hardness for various materials. A hardness of 68 HRC is extremely high and will most likely be harder than simple steel.
What is the hardness of 1018 Annealed steel?
In a lab experiment, I found the hardness of a sample of C-1018 Annealed carbon steel to be 73.58 (averaged over 6 runs) on the HRB scale.
When reading the steel heat treatment notation RC what does the R mean?
RC stands for Rockwell Hardness C scale; the different letters A,B,C etc. are based on different loads and indenters for measurement. C scale is typical for steels, while B scale is typical for aluminum. There are conversion tables for these if needed.
What is the Hardness Rockwell C scale?
This is a method used to determine the hardness of a metal. If you know the type of metal and the hardness, this will tell you the Tensile Strength of the metal and how well it was heat treated. The method uses a ball or a pin to strick the metal and leave a small indention. The size and depth that the ball makes in the metal is inversely proportional to the hardness. Using the scale, you can then determine if the part has completed the proper heat treatment as required by the Engineering drawing. There are 3 Rockwell scales: A, B, C. Rockwell C scale is for the hardest of metals such as steel. Rockwell B is for metal such as soft aluminum and A is for even softer metals.
What rockwell c hardness is grade 10.9?
The Rockwell C Hardness for a grade 10.9 fastener is 32 - 39HRC or 320 - 380Hv10
What is HRC in rockwell testing machine?
HRC stands for Hardness Rockwell C scale. There are different scales; C is probably the most common for hardened materials. See the related link for more information.
What is Rockwell C?
Answer Rockwell C is a method to measure the hardness of a metal object. The hardness of the metal is a direct correlation to its strength properties: i.e., Tensile Strength. The scales can be found in any engineering or matierals reference books. A test devise is used to strick a metal object with a small pointed hammer. The size of the dimple is compared to a chart to give you the Rockwell C hardness value. There are 3 charts for measuring hardness: A scale, B scale and Cscale. Rockwell C is for the hardest of metals such as very high strength steel. Rockwell A is for much softer materials including something as soft as clay, I believe. During manufacture, a hardness test will be performed to ensure that the finished product meets the design engineer's criteria to ensure the part.
What is the Rockwell C for tin?
Approx 37.8 Rockwell "c" scale
What should be Rockwell C hardness of concrete nail?
5.5
How hard is a diamond in Rockwell Scale c?
Diamond is more than 1000 times harder than quartz, which is in the 80 range in the Rockwell C. Diamond cannot be measured on the Rockwell C scale. A diamond pyramid is actually used in the Rockwell C test, which would be inconclusive.
What is the Hardness of 1018 carbon steel?
Between 121-137 on the Brinell hardness scale - which is quite soft. The end parts are generally case-hardened before use to 60+ Rockwell "C".
How do you convert shore scale c to Rockwell scale c?
You can check out the related link below.
How do you I calculate the Rockwell Hardness number?
Converting between different hardness scales is not an exact science, but there are many charts available that will show the approximate relationship between different scales. One chart is available at http://www.carbidedepot.com/formulas-hardness.htm Another useful website for converting between different hardness scales is http://www.efunda.com/units/hardness/convert_hardness.cfm Tianxing Testing Instruments Co. Ltd. is a professional manufacturer of portable hardness testers http://www.hardnesstesters.biz/
A very hard tool steel will probably register about 70 on the what scale?
Rockwell C scale
