Introduction

PHB-3000 portable Brinell hardness tester has the same structure as King Brinell hardness tester. It is the unique portable hardness tester in the world which applies test condition with 3000kg test force on a 10mm carbide indenter. The large indentation resulted by the tester can reflect the average value of combined influence affected by all the compositions of large materials. It is unaffected by certain composition of materials or partial nonuniform distribution and very suitable for testing nonuniform materials made of large crystal particle. The testing result of this instrument is true and accurate with good repeatability and it has a good correspondence with tensile strength. It is the best mechanical property tester which can be used on site. The test condition and accuracy meet the requirements of ISO 6506 and ASTM E110 and can be used to test rough castings, forgings, nonferrous metals and semi-finished products after tempering heat treatment.

PHB-3000 Hardness Tester adopts hydraulic principle and applies 3000kgf test force by hand operation. The central part of PHB-3000 is a small hydraulic system in which a release valve is used to control the test force. When the test force rises 3000kgf, the release valve will open and pressure will fall down, and it needs to apply the test force repeatedly 3-4 times to make the needle of the pressure gauge point to 3000kgf for 3-4 times. Thus it is equivalent to the test condition of Brinell hardness testing method to hold 3000kgf test force with 10mm ball for 10-15 seconds, which complies with ASTM E110.The accuracy and performance can reach the level of hydraulic King Brinell hardness tester.

 

 

 

 

 

 

 

Technical Parameters of PHB-3000 Hydraulic Brinell Hardness Tester