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You are here: Home » Products » Hardness Tester » Rockwell » Dial Reading Manual Rockwell Hardness Tester HR-150A

Suzhou Fema Precision Instrument Co.,Ltd
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Dial Reading Manual Rockwell Hardness Tester HR-150A

model:
Quantity:
  • HR-150A
  • FEMA
  • Manual Rockwell Hardness Tester
  • manual
  • 65Kg/56Kg
Applications:
●  HRA is widely used to measure hardness of carbide alloy, quenched hardening steel after carbonized, hardened thin steel strip and plate, etc. For materials HRC > 67,  it is more likely to damage the diamond indenter if we use 1471 test force. For those materials, we had better choose HRC hardness scale which has small test force and indentation.
●  HRB is suitable to test medium hardness materials such as low and medium carbon steel after annealing treatment, malleable iron, all kinds of brass, bronze, hard aluminum alloy after solution treatment and so on. The applicable scope is 20~100 HRB. when the material hardness is under 20HV, on account of the creep of metal the specimen deformation will last for a long time under the test force. The needle on indicator dial or optical projection scale moves slowly, causing difficulty in measuring precision. While when the material hardness exceeds 100 HV, the shallow indentation depth decreases sensitivity affecting measuring precision.
●  HRC is most applicable to testing carbon steel after quenching or low tempering, alloy steel, tool steel, die steel, as well as chilled cast iron, titanium alloy and so on. Generally, we apply HRC scale to test materials HRB>100, and HRB scale to test materials HRC<20 avoiding influence caused by glide of indenter.
 
HR-150A Specifications:
Product name Manual Rockwell Hardness Tester
Model HR-150A
Measuring range 20-88HRA, 20-100HRB,20-70HRC
Dial pointer range A,C (black) :0-100;B(red):30-130
Preliminary test force 10kgf (98.07N)
Rockwell test force 10kgf (98.07N)
Hardness indication Dial Reading
Resolution 0.5HR
Loading control manual
Max height of specimen 170mm
Instrument throat 135mm
Dimension 470 x 240 x 630mm
Packing dimension 540 x 420 x 700mm
Power supply AC 220V/50Hz;AC110V/60Hz
Gross/ Net weight 65Kg/56Kg
Execution standard GB/T230.2, JIS Z2245, EN-ISO 6508 , ASTME-18

HR-150A Standard Delivery:
Standard delivery Code# Standard delivery Code# Standard delivery Code#
Instrument main body 811-112 Ø1.588mm ball indenterl 811-412 Weight A 811-712
Ø58mm V-shape anvil 811-512 Ø1.588mm Steel ball 811-422 Weight B 811-722
Hardness block 811-611C Cone diamond indenter 811-402 Weight C 811-732
Anti-dust cover 811-912 Ø150mm Flat anvil 811-542 Accessory box 811-902
Warranty card HR-150A Qualified certificate HR-150A Instrument manual HR-150A

 
 
 

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