HTM-1103A HRM-45 Manual Superficial Rockwell Hardness Tester

Product Detail

Technical Parameter:

1. The initial test force:  29.42N (3kg);  Tolerance: ±2.0%

2. The total test force:  147.1N (15kg), 294.2N (30kg), 441.3N (45kg);  Tolerance: ±1.0%

3. The specifications of the indenter:

3.1  Diamond Rockwell indenters

3.2  Ball indenters φ1.5875mm

4. The max height of the specimens:  175mm

5. The distance from the center of the indenter to the instrument body:  165mm

6. The total dimension of the tester:   520×215×700 (mm)

7. The total weight of the tester:    73kg

8. The allowed tolerances of the indicated values of the hardness tester

Scale

Hardness   of Standard Blocks

Display   Tolerance

15N

70~94 HR 15N

±2   HRN

30N

42~86 HR 30N

45N

20~77 HR 45N

15T

67~93 HR 15T

±3   HRT

30T

29~82 HR 30T

45T

10~72 HR 45T

9. The Scales, Indenters, Test Force Values and Application Fields of the Superficial Rockwell Hardness Tests.

Scale

Indenter   Type

Initial   Test Force

Total   Test ForceN

Applications

HR15N

Diamond Indenter

29.42   N

3kg

147.1(15)

Hard   alloy steel, nitride steel, carburized steel, various heavy steel plate, etc

HR30N

294.2(30)

Surface-quenched   steel, carburized steel, knife, thin steel plate, etc

HR45N

441.3(45)

Quenched   steel, tempered steel, hard cast iron and edge of parts, etc

HR15T

Ball   Indenter     φ1.5875mm1/16   inch

147.1(15)

Annealed   copper alloy, brassbronze plate,    mild steel sheet

HR30T

294.2(30)

Mild   steel sheet, aluminum alloy, copper alloy, brass and bronze, malleable cast   iron,

HR45T

441.3(45)

Pearlite   iron, copper -nickel alloy and zinc-nickel alloy plate 

Accessories (the Packing List)                                   

   Besides the main instrument, there are provided the following accessories:

NO.

Name   (specifications)

Quantity

1

Rockwell   Diamond Indenter

1

2

Ball   Indenterφ1.5875mm

1

3

Big   Testing Table

1

4

Middle-sized   Testing Table

1

5

“V”-shaped   Testing Table

1

 

Rockwell   standard Blocks

 

6

HR30T

1   PC

7

HR15N,   HR30N

TOTAL   2 PCS

8

Sets   of weights ABC

3   sets in all

9

Protective   Plastic Corer

1

10

Instruction   Manual

1   copy

 

Equipment Overview:

1.The hardness is one of the important criteria of the mechanical functions of the materials, and the hardness test is 

the important means to judge the quality of the metallic materials or parts.

2.The manual Superficial Rockwell hardness fester is a popularly-used hardness testing instrument to measure the 

Rockwell hardness of the materials. The speed of loading the test force is regulated by the buffer whereas the change 

of the test force is made by rotating the carriage-changing hand-wheel. The operation of the present instrument is 

simple, its functions are stable, and its use is, therefore, widely spread.

Show