RH

(redirected from Rockwell hardness)
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia, Wikipedia.

RH

1. ISO 3166-1 alpha-2 code for Southern Rhodesia before it changed its name to Zimbabwe. This was the code used in international transactions to and from bank accounts in Southern Rhodesia.

2. ISO 3166-2 geocode for Southern Rhodesia. This was used as an international standard for shipping to Southern Rhodesia.

In both cases, the code is obsolete.
References in periodicals archive ?
The advanced HR-500 Series Rockwell hardness testing machines offer multiple test force generation for Rockwell, Rockwell Superficial and optional Brinell hardness testing.
The hot hardness of the inserts were measured using a Rockwell hardness testing machine with a load of 60 kgf.
Readings can be in either Brinell hardness or Rockwell hardness values.
The bottom third of the bit had a Rockwell hardness of about 62 [R.
SATurn allows heavy stock removal on straight and outside diameters (ODs) or special form diameters to grinding machine tolerances on virtually any difficult material or Rockwell hardness.
The Rockwell hardness of the castings was checked in the heavy sections of the second flange and in the 2-mm section opposite it and converted to Brinell by ASTM B10.
For example, the Rockwell hardness scales are distinguished by the amount of static force applied (e.
Lone Wolf Knives' Tighe Pan knife by Brian Tighe has a blade built to a Rockwell hardness of C 59-61.
Other properties of the sheet meeting MedRad's requirements include: tensile elongation of 5,800 psi; modulus of elasticity of 347,000 psi; and Rockwell Hardness of 106.
The main blade -- double-edged, precision hollow ground (half- or non-serrated options) with a modified spear point -- is of 154 cm high carbon stainless steel alloy showing a resilient non-reflective finish, carries a Rockwell hardness of 60 and includes ambidextrous steel milled thumb studs (for a full list of features, visit www.
Materials Scratch Visibility (%) Scratch Depth ([micro]m) Rockwell Hardness A1 0.