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.
The Rockwell C Hardness for a grade 10.9 fastener is 32 - 39HRC or 320 - 380Hv10
To convert Shore scale C to Rockwell scale C, there is no direct formula as they measure hardness differently. Shore scale C measures indentation hardness while Rockwell scale C measures depth of penetration. These two scales cannot be directly converted into one another.
5.5
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.
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.
The melting point for tin is 232°C, 449 °F
The Adventures of Rin Tin Tin - 1954 The New C-O- 4-17 was released on: USA: 14 February 1958
The melting point of tin is 231.9 deg C.
The melting point of tin is 231.9°C and the boiling point is 2602°C in Celsius.
Tin (Sn) - Atomic Number = 50, Melting Point = 232°C, Boiling Point = 2260°C.
4.5 kg/sq.mm