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Dial Reading Manual Rockwell Hardness Test Machine , Steel Hardness Tester

Place of Origin: Zhejiang

Company Profile

Location: Dongguan, Guangdong, China (Mainland)
Business Type: Manufacturer
Main Products: Digital Hardness Tester, Vickers Hardness Tester, Micro Hardness Tester

Product Detail

Model No.: HR-150A

Product Description

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

Code #

811-112

Measuring range

20-88HRA, 20-100HRB,20-70HRC

Dial pointer range

A,C (black) :0-100B(red):30-130

Preliminary test force

10kgf (98.07N)

Rockwell test force

60Kgf(558.4N),100Kgf(980.7N),150Kgf(1471N)

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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