phase II+ 900-365 User manual

900‐365/900‐366
 DigitalRockwellHardnessTesters 
InstructionManual
21IndustrialAve    UpperSaddleRiver,NJ.07458
Tel:(201)962‐7373    Fax:(201)962‐8353
E‐Mail:[e-mail]
WebSite:http://www.phase2plus.com

1
Contents
1 General description…………………………………………………………... 2
2 Key performance parameters………………………………………………. 2
3 Basic configuration and structure…………………………………………. 3
3.1 Standard configuration………………………………………………………. 3
3.2 Structure schematic diagram……………………………………………….. 3
4 Installation and adjustment…………………………………………………. 4
5 Operating methods…………………………………………………………… 4
5.1 Testing preparation…………………………………………………………… 4
5.2 Test parameters setting……………………………………………………… 5
5.2.1 Scale selection………………………………………………………………… 5
5.2.2 Load dwell setting…………………………………………………………….. 6
5.2.3 Auxiliary functions……………………………………………………………. 6
5.2.4 Communication status setting……………………………………………… 9
5.2.5 Buzzer for key…………………………………………………………………. 9
5.2.6 Browse through/print the track record……………………………………. 9
5.2.7 Time setting……………………………………………………………………. 10
5.3 Testing………………………………………………………………………….. 10
5.3.1 The preload loading………………………………………………………….. 10
5.3.2 Automatic testing……………………………………………………………... 10
5.3.3 Unloading………………………………………………………………………. 11
5.4 Shut down………………………………………………………………….…... 11
6 Maintenance and attentions………………………………………………… 11

2
DoNotDiscardShippingCrateasThisMay
beNeededforFutureTransportation.
Use adjustable feet to level the machine. Be sure to lock nuts when completed.

3
The weights must sit flush in the groove of the support saddle
The two pins in the weights should be symmetric.
Don’t turn in any other direction.

4
All weights should unobstructed while taking a test.
The chart above explains which weights get supported when taking a particular Rockwell test.


RockwellBIndentor
1/16” Carbide Ball RockwellCIndentor Diamond
IncludedIndentors:

5
1Generaldescription
The900‐365&900‐366DigitalRockwellHardnessTesterscanbeuseddirectlytomeasureall
regular Rockwellhardnessscalesanditcanquicklyconvert thathardnessvalueintoHB,HV,
HLD, HK and σbvalue.Loadedwithmanyusefulfeaturessuchasultrapreciseresults, wide
measuringrange,automatictestforcechangeaccordingthescale selection, automatic main
testforceloading/unloading,highresolutiondigitaldisplayandautomaticprinting.The
900‐365/366issuitablefortestinghardnessofcarbonsteel,alloysteel,castiron,nonferrous
metalsandengineeringplastics.
Thetestermeetsthefollowingstandard:ASTME18,ISO6508‐2,andBSENISO6508‐2.
2Keyperformanceparameters
Preload：98.1N（10kgf）
Totaltestforce： 588.4N(60kgf)，980.7N(100kgf)，1471N(150kgf),
Scales：HRA，HRB，HRC，HRD，HRE，HRF，HRG，HRH，HRK，HRL，HRM，HRP，HRR，HRS，HRV
Loadcycle：3～8s
Loaddwellduration：2～50s
Resolution：0.1HR 
Display：HighdefinitionbacklightLCD
Operation：Menuselectable,Membranekeypad
Auxiliaryfunctions：Upper/lowerlimitssetting&alarming, 
Datastatistics,Avg.,Max.,Min.,S,R, 
Scaleconversion,HV,HB,σb, 
CurvedsurfaceAutoCorrection
Dataoutput:Built‐inMiniPrinter
Memory:Max500itemsoftestresultsstoredautomatically
TestingCapacity：900‐365:Vertical:7.87”  ThroatDepth:6.50” 
TestingCapacity：900‐366:Vertical:16.5”  ThroatDepth:7.87” 
Dimensions:900‐365:Height: 28.34” Width:7.87”  Depth:  21.60” 
(550mm×200mm×720mm)
Dimensions900‐366:Height: 39.37” Width:11.02”  Depth:  23.60” 
(1000mm×280mm×600mm)
Powersupply:singlephase,AC,110V,50～60Hz,4A
Netweight：900‐365:220lbs  (100kg)   900‐366:330lbs(150kg)
OptionalCabinet/SupportStand

6
3 Basic configuration and structure
3.1 Standard configuration
BaseMachine 1
Standard hardness block for B scale 1
Standard hardness block for C scale 3
1/16″Carbideball indenter 1
120°cone diamond indenter 1
Mounting screws for indenter 2
Flat anvil 1
“V ”shape anvil 1
Power supply plug 1
Screwdriver 1
Dust cover 1
3.2 Structure schematic diagram
1- screen and keyboard
2- indenter
3- anvil
4- leadscrew and protecting sleeve
5- handwheel
6- weights( in the tester)
7- switch and power panel
8- printer
Figure 3.1
1
6
3
5
2
4
8
7

4
4 Installation and adjustment (900-365 only)
4.1 Remove wood crate top by removing 1each bolt from bottom left and right side of crate and
lifting up crate, then remove the three M10 screws from the underside of the base. Lift the
machine very carefully from the bottom. Remove the tool kit containing the weights and
other accessories.
4.2 The machine should be mounted on a firm bench or table in a clean area, free from vibration
or shock, recommended height is 30”. A hole must be drilled in the top of the work bench to
allow maximum travel of lead screw. Refer to figure 4.1.
4.3 Place the tester on the prepared bench, turn the hand wheel counter-clockwise to lower the
anvil, remove the anti vibration pad; then place a flat anvil in the lead screw and place a
level with the precision of 0.2mm/m on the anvil, adjust the levelling feet of tester to make
the level within +/- 1mm/m, then lock the nuts. Note: This is very important. The
load change will be affected if the machine is not leveled properly
Figure 4.1
4.4 For installation, open the upper cover and back cover of tester, then remove all the packing
materials and suspending weight at the V groove of the lever. Make sure the blade should be
correctly placed in the V groove.
4.5 Reinstall the upper and back cover and connecting the power supply wire.
5 Operating methods
5.1 Testing preparation
Switch on the machine and then the tester will self check. The relative information such as type,
series number, software version will be displayed on screen. Tester will come to main menu after
self-checking; current test parameters will be displayed on screen, and the status at the previous test
will be automatically stored. Figure 5.1.1 is a typical status of Rockwell C testing parameter;
showing the current scale, indenter type should be selected according to the current scale, test force,
load dwell duration, as well as current time.
155
580
Model No. 900-366Model No. 900-365

5
For900‐366Only!

6
Figure 5.1.1
When selecting a particular scale, pay attention to the Indentor that is shown on the display. If the
display shows Diamond as above, then you must install the supplied Diamond Indentor in the
machine. When installing indenter, make sure the surface of the diamond shank is clean. Install
diamond and tighten set screw.
The test force selection is automatically done by the machine once a scale has been chosen.
See details in 5.2.1.
The test can be performed directly according to the procedure 5.3 if all parameters match your
requirements; following procedures should be observed if the modification is necessary.
5.2 Test parameters setting
Press “Setup” key, figure 5.2.1 will be shown on the display, the parameter setting is ready.
5.2.1 Scale selectionPress“”or“ ”key to move cursor to “1” in figure 5.2.1, press “ ”
key and the cursor will begin at“HRC”. Press “”o r“ ”key at this time to scroll through the
optional 15 Rockwell scales HRC、HRA、HRB、HRD、HRE、HRF、HRG、HRH、HRK、HRL、HRM、HRP、
HRR、HRS、HRV will be appear in sequence. When the desired scale appears as figure 5.2.2, press
“”to confirm. At this time test force will be changed automatically according the confirmed
scale.
Press “Setup” key to return to figure 5.1.1；or press “ ”or“ ”key to reset the other parameters.
Figure 5.2.1 Figure 5.2.2

7
5.2.2 Load dwell setting
Load dwell refers to the duration of total test force (i.e. time of primary test force and main test
force). For samples such as steel, cast iron and aluminum, dwell times should be set at 5 seconds
for optimal performance. Changing the dwell time rate will affect the hardness values. An increase
of dwell time will produce lower hardness values caused by creep due to the elasticity of the
material.
Press “Setup” key then Press “”or“ ”key to move cursor to “2” in figure 5.2.1, press
“” key ,then the cursor move to “5S”as figure 5.2.3. Press “”o r“ ”key at this time to
select the dwell time range from 2s～50s,then press “ ”to finish the setting.
Press “Setup” key to return to figure 5.1.1；or press “ ”or“ ”key to reset the other parameters.
Figure5.2.3 Figure5.2.4
5.2.3 Auxiliary functions
The tester has four auxiliary functions, which can be used individually, multi selected or all
selected. Press “Setup” key then Press “”o r“ ”key to move cursor to “3” in figure 5.2.1,
press “ ” key ,then the cursor will move to the position of“ ”and change to“ ” as figure
5.2.4. Press “”or“ ” key at this time to select the desired auxiliary functions, then press
“” to confirm and go into next menu as shown in 5.2.5~5.2.9. There four auxiliary functions
marked as“”, which represent limit setting, data statistics, scale conversion and
curved surface correcting respectively.
5.2.3.1 Limit setting
Press “Setup” key then Press “”o r“ ” key to set the value of upper limit and the value of
lower limit in the figure5.2.5, then press “ ” to confirm.
The upper limit and lower limit will be shown simultaneously with the display of each measuring
result once the function setting has been completed. As figure 5.2.6, the testing result is 59.9HRC,
upper limit is set as 62.0HRC, lower limit is 56.0HRC. If the result is beyond the limitation setting,
a warning on the display and buzzing will occur simultaneously.
?

8
Figure5.2.5 Figure5.2.6
5.2.3.2 Data statistics
The statistics for one group data is available; press “”or“ ”key to determine the value of N (the applicable
scope is 2～99) in figure5.2.7; then press“ ” to confirm.
The values of serial number n and N will be shown simultaneously with the displaying of measuring result each
time after the function setting has been taken into effect. Refer to figure 5.2.6, 5 measurements will be performed
totally, and the current measurement is the 2nd. In case of n=N, that is to say the last measurement had been
completed, the tester will automatically calculate the average
X
, standard deviation S, maximum (Max), minimum
(Min) and the range R as figure 5.2.8 showing after the hand wheel had been unloaded by turning in anti direction.
Of which, the mean value, standard deviation and range can be calculated according to the following equation.
X
=i
X
N
1，
S=2
)(
1
1
i
XX
N
R=Max-Min
Normally, the serial number will plus 1 after each measurement until the n is equal to N (i.e. all of
the N measurements were finished), then begin with statistical calculation. In event one of the
current measurements must be deleted, press “”o r“ ”key in the figure 5.2.6 when the “√”
change to “×”, then unload (i.e. Lowdown the anvil). For this condition, n will not be added by 1,
and the current measurement will not take part in the statistical calculation.
Figure 5.2.7 Figure 5.2.8

9
5.2.3.3 Scale conversion
This function can convert the measured Rockwell hardness value to other scales or strength. Such
as changing the value of HRA scale into HBS, HBW, HV and HK value; changing the value of
HRB scale into HB10, HB30, HV, HLD, σband HK value; changing the value of HRC scale into
HBS, HBW, HV, HLD, σband HK value; changing the value of HRD scale into HV, HK, HB
value; changing the value of HRE scale into HV, HK, HB value; changing the value of HRF scale
into HV, HB value.
For instance, if you intend to convert the HRC value to HV value, press SETUP, then“”or“ ”
key to move the cursor to “3. Function. The press either the UP or DOWN arrow buttons to scroll
through functions until you see “COV”. Then press “ ” to enter the conversion list. Scroll down
to HRC—HV” in figure 5.2.9, and then press “ ” to confirm.
The conversion value will be shown simultaneously with the hardness scale the machine has been
set to take. As figure 5.2.6, the hardness value measured is 59.9HRC, conversion value is 696HV.
Each change is performed within the applicable scope when change is possible; “E” will be shown
on the display if setting is incorrect or not obtainable.
Figure5.2.9 Figure5.2.10
5.2.3.4 Curved surface correcting
The testing results should be corrected if the surface of sample measured is the external surface of cylindrical or
spherical. Press “Setup” key then Press “ ”or“ ” key to select cylindrical surface or spherical surface,
then press “ ” to confirm as figure 5.2.10.
After that, press “ ”or“ ”key to determine curvature radius or the diameter of sphere, and press “ ” to
confirm.
Once this parameter has been set, the measuring result as well as correcting value will be shown on the display. Note:
screen will display respective hardness value (the direct testing result without correction) as well as the corrected
value. As figure 5.2.6, the measuring result is 59.9HRC and the correcting value is “+1.0” HRC.
5.2.3.5 Press “Setup” key to return to figure 5.1.1；or press “ ”or“ ”key to reset the other parameters.

10
5.2.4 Communication status setting
The 900-365 is provided with a digital communication USB port (transmission rate 9600bps), which can be
connected with external computer. After setting, test results of each time will be sent to external computer.
Press “Setup” key then Press“”or“ ” key to move cursor to “4” in figure 5.2.1, press “ ” key then
move the cursor to “Off ”. Press“”or“ ”key at this time, the options “Printer”、“USB”、“Off” will be appear
in sequence. When the desired option appears, press “ ”to complete the selection.
Press “Setup” key to return to figure 5.1.1；or press “ ”or“ ”key to reset the other parameters.
5.2.5 Buzzer for key
Press “Setup” key then Press “ ”or“ ”key to move cursor to “6” in figure 5.2.1, press “ ” key, then the
cursor move to “Off”. Press “ ”or“ ”key to select the “On” or “Off” for the key buzzer, press “ ” key to
confirm finally.
Press “Setup” key to return to figure 5.1.1；or press “ ”or“ ”key to reset the other parameters.
5.2.6 Browse through/print from memory
Press “Setup” key then Press “ ”or“ ” key to move cursor to “7” in figure 5.2.1, then press
“” key. The latest 8 test results will display on the screen as figure 5.2.11. The serial number
and time of the test are displaying simultaneity. There are 500 items of record in maximum. Press
“”or“ ” key to scroll the items. The item of record which the cursor pointed can be printed by
press “ ” key.
Figure5.2.11 Figure5.2.12
Press “Setup” key to return to figure 5.1.1；or press “ ”or“ ”key to reset the other parameters.

11
5.2.7 Time setting
Press “Setup” key then Press “”or“ ” key to move cursor to “8” in figure 5.2.1, press
“” key, figure5.2.12 appears. Press“”or“ ”key to move cursor to “1” in figure 5.2.12, then
press “ ” key, press “”or“ ” to select the year, and press “ ” key to confirm. The
month, also the date, hour, minute and second can be reset in the same way.
Press “Setup” key to return to figure 5.1.1；or press “ ”or“ ”key to reset the other parameters.
5.3 Testing
5.3.1 Preload
Place the sample to be tested on the anvil, and rotate the hand wheel clockwise to raise the anvil
as figure 5.3.1, showing the anvil moving course. Rotate the hand wheel smoothly until the anvil in
figure reaches the end position as figure 5.3.2. the machine will buzz when it reaches its peak. Do
not turn handle any further as an error will occur.
Figure5.3.1 Figure5.3.2

12
5.3.2 Automatic testing
Figure5.3.3 Figure5.3.4
After the preload has been set, the test will be performed automatically as follows: loading main
test force, as figure 5.3.3; holding with dwell time and counting down after loading, refer to figure
5.3.4. Finally, unloading is performed immediately when the dwell time has finished. Test results
will be showed on screen, refer to figure 5.2.6.
5.3.3 Unloading
Once the test has been completed, you should rotate the hand wheel counter-clockwise to lower the
anvil to unload the machine; the screen returns to figure 5.1.1, The machine is now ready to
perform the next test. All parameters are saved and should not need to be modified at this time.
5.4 Shut down
Remove the test force completely, and switch off the power supply. Disconnect power cord if not
being used for an extended period of time.
Warning: Do not test any specimen that cannot be safely and properly positioned
on and supported by the tester anvil.
6 Maintenance and Service
6.1Whenthehardnesstesteristobemovedortransported,theweightsandassemblyMUSTberemovedfromthe
insideofthemachine.Storeinsuppliedtoolkit.
6.2Whenperforminganyadjustments,thepowersupplymustbedisconnected
6.3Paycarefulattentiontoyourindentor.Besuretheshankiscleanandfreeofrust,dirtormetalchipspriorto
installation.
6.4Thesurfaceofanvilandtestblocksshouldbeclean.Nooil,dirt,dust,rustormetalchipsshouldbeonthese
surfacesasitwillcauseerroneousreadings.
6.5Alwayskeepthedustcoveronthemachinewhennotinuse.Neverstoreindamparea.
6.6Theleadscrewoftheanvilshouldbelubricatedperiodically.Applyafewdropsoflightmachineoil,thenrun
theleadscrewupanddownafewtimestodistributetheoil.
6.7Neverdisassembleanyfixedpartsasthiswillautomaticallyvoidanystatedorimpliedwarranties.Ifyouneed
service,pleasecontactPhaseIIdirectlyat(201)962‐7373

13
ApproximateHardnessConversionNumbersforNon‐AusteniticSteels(RockwellCHardnessRange)A
BrinellHardnessNumberC Rockwell  SuperficialRockwellNumber
Rockwell
C
150kgf
(HRC)
Vickers
(HV)
10‐mm 
Standard
ball
3000kgf
(HBS)
10‐mm
Carbide
ball
3000kgf
(HBW)
Knoop
500‐gf
and
Over
(HK)
A
Scale
60kgf
(HRA)
DScale
100kgf
(HRD)
15‐N
Scale
15‐kgf
(HR15N)
30‐N
Scale
30‐kgf
(HR30N)
45‐N
Scale
45‐kgf
(HR45N)
Scleroscope
HardnessD

68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
940
900
865
832
800
772
746
720
697
674
653
633
613
595
577
560
544
528
513
498
484
471
458
446
434
423
412
402
392
382
372
363
354
345
336
327
318
310
302
294
286
279
272
266
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
(500)
(487)
(475)
(464)
451
442
432
421
409
400
390
381
371
362
353
344
336
327
319
311
301
294
286
279
271
264
258
253
…
…
…
(739)
(722)
(705)
(688)
(670)
(654)
634
615
595
577
560
543
525
512
496
481
469
455
443
432
421
409
400
390
381
371
362
353
344
336
327
319
311
301
294
286
279
271
264
258
253
920
895
870
846
822
799
776
754
732
710
690
670
650
630
612
594
576
558
542
526
510
495
480
466
452
438
426
414
402
391
380
370
360
351
342
334
326
318
311
304
297
290
284
278
85.6
85.0
84.5
83.9
83.4
82.8
82.3
81.8
81.2
80.7
80.1
79.6
79.0
78.5
78.0
77.4
76.8
76.3
75.9
75.2
74.7
74.1
73.6
73.1
72.5
72.0
71.5
70.9
70.4
69.9
69.4
68.9
68.4
67.9
67.4
66.8
66.3
65.8
65.3
64.8
64.3
63.8
63.3
62.8
76.9
76.1
75.4
74.5
73.8
73.0
72.2
71.5
70.7
69.9
69.2
68.5
67.7
66.9
66.1
65.4
64.6
63.8
63.1
62.1
61.4
60.8
60.0
59.2
58.5
57.7
56.9
56.2
55.4
54.6
53.8
53.1
52.3
51.5
50.8
50.0
49.2
48.4
47.7
47.0
46.1
45.2
44.6
43.8
93.2
92.9
92.5
92.2
91.8
91.4
91.1
90.7
90.2
89.8
89.3
88.9
88.3
87.9
87.4
86.9
86.4
85.9
85.5
85.0
84.5
83.9
83.5
83.0
82.5
82.0
81.5
80.9
80.4
79.9
79.4
78.8
78.3
77.7
77.2
76.6
76.1
75.6
75.0
74.5
73.9
73.3
72.8
72.2
84.4
83.6
82.8
81.9
81.1
80.1
79.3
78.4
77.5
76.6
75.7
74.8
73.9
73.0
72.0
71.2
70.2
69.4
68.5
67.6
66.7
65.8
64.8
64.0
63.1
62.2
61.3
60.4
59.5
58.6
57.7
56.8
55.9
55.0
54.2
53.3
52.1
51.3
50.4
49.5
48.6
47.7
46.8
45.9
75.4
74.2
73.3
72.0
71.0
69.9
68.8
67.7
66.6
65.5
64.3
63.2
62.0
60.9
59.8
58.6
57.4
56.1
55.0
53.8
52.5
51.4
50.3
49.0
47.8
46.7
45.5
44.3
43.1
41.9
40.8
39.6
38.4
37.2
36.1
34.9
33.7
32.5
31.3
30.1
28.9
27.8
26.7
25.5
97.3
95.0
92.7
90.6
88.5
86.5
84.5
82.6
80.8
79.0
77.3
75.6
74.0
72.4
70.9
69.4
67.9
66.5
65.1
63.7
62.4
61.1
59.8
58.5
57.3
56.1
54.9
53.7
52.6
51.5
50.4
49.3
48.2
47.1
46.1
45.1
44.1
43.1
42.2
41.3
40.4
39.5
38.7
37.8

14
ApproximateHardnessConversionNumbersforNon‐AusteniticSteels(RockwellBHardnessRange)A
 RockwellSuperficialRockwellNumber
RockwellB
100kgf
(HRB)
Vickers
(HV)
10‐mm
Standard
ball
3000kgf
(HBS)
Knoop
500‐gf
and
Over
(HK)
A
Scale
60kgf
(HRA)
FScale
60kgf
(HRF)
15‐T Scale
15‐kgf
(HR15T)
30‐T Scale
30‐kgf
(HR30T)
45‐TScale
45‐kgf
(HR45T)
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
240
234
228
222
216
210
205
200
195
190
185
180
176
172
169
165
162
159
156
153
150
147
144
141
139
137
135
132
130
127
125
123
121
119
117
116
114
112
240
234
228
222
216
210
205
200
195
190
185
180
176
172
169
165
162
159
156
153
150
147
144
141
139
137
135
132
130
127
125
123
121
119
117
116
114
112
251
246
241
236
231
226
221
216
211
206
201
196
192
188
184
180
176
173
170
167
164
161
158
155
152
150
147
145
143
141
139
137
135
131
129
127
125
124
61.5
60.9
60.2
59.5
58.9
58.3
57.6
57.0
56.4
55.8
55.2
54.6
54.0
53.4
52.8
52.3
51.7
51.1
50.6
50.0
49.5
48.9
48.4
47.9
47.3
46.8
46.3
45.8
45.3
44.8
44.3
43.8
43.3
42.8
42.3
41.8
40.9
40.4
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
99.6
99.1
98.5
98.0
97.4
96.8
96.2
95.6
95.1
94.5
93.9
93.4
92.8
93.1
92.8
92.5
92.1
91.8
91.5
91.2
90.8
90.5
90.2
89.9
89.5
89.2
88.9
88.6
88.2
87.9
87.6
87.3
86.9
86.6
86.3
86.0
85.6
85.3
85.0
84.7
84.3
84.0
83.7
83.4
83.0
82.7
82.4
82.1
81.8
81.4
81.1
83.1
82.5
81.8
81.1
80.4
79.8
79.1
78.4
77.8
77.1
76.4
75.8
75.1
74.4
73.8
73.1
72.4
71.8
71.1
70.4
69.7
69.1
68.4
67.7
67.1
66.4
65.7
65.1
64.4
63.7
63.1
62.4
61.7
61.0
60.4
59.7
59.0
58.4
72.9
71.9
70.9
69.9
68.9
67.9
66.9
65.9
64.8
63.8
62.8
61.8
60.8
59.8
58.8
57.8
56.8
55.8
54.8
53.8
52.8
51.8
50.8
49.8
48.8
47.8
46.8
45.8
44.8
43.8
42.8
41.8
40.8
39.8
38.7
37.7
36.7
35.7

15
ApproximateLeeb(TypeD)HardnessConversionforNon‐AusteniticSteels(RockwellCHardnessRange)A
LeebHardness,TypeD
ImpactDevice(HLD)
RockwellCHardness
150kgf(HRC)
VickersHardness
(HV10)
BrinellHardness
10mmSteelBall
3000kgf(HBS)
828
819
809
800
791
782
773
764
755
746
737
729
720
712
703
695
687
679
671
663
655
647
640
632
625
618
611
603
596
590
583
576
570
563
557
551
545
539
533
527
521
516
510

62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20

762
737
711
688
667
645
625
605
586
568
550
534
517
503
487
473
460
447
434
422
410
398
388
377
368
358
349
339
330
323
314
306
299
291
284
277
271
264
258
251
245
240
234

(721)
(699)
(675)
(654)
634
614
595
577
559
542
526
511
496
482
467
455
442
430
418
407
395
385
375
365
356
347
338
328
320
313
305
297
291
283
276
270
264
258
252
246
240
235
229


16
Weight‐  Load‐  IndentorChart
Scale
Symbol
IndentorTypePreliminary
Force
N(kgf)
Total
Force
N(kgf)
TypicalApplications
A Spheroconical
Diamond
98.07(10)588.4(60)Cementedcarbides,thinsteel,and
shallowcasehardenedsteel
B 1/16”CarbideBall 98.07(10) 980.7(100) Copperalloys,softsteels,aluminum
alloys,malleableiron,etc.
C Spheroconical
Diamond
98.07(10) 1471(150) Steel,hardcastirons,pearlitic
malleableiron,titanium,de epcase
hardenedsteel,otherharderthan
HRB100
D Spheroconical
Diamond
98.07(10)980.7(100)Thinsteelandmediumcase
hardenedsteel,andpearlitic
malleableiron
E 1/8”CarbideBall 98.07(10)980.7(100)CastIron,Aluminumand
magnesiumalloys,andbearing
metals
F 1/16”CarbideBall 98.07(10)588.4(60)
A
nnealedcopperalloysandthinsoft
sheetmetals
G 1/16”CarbideBall 98.07(10)1471(150)Malleableirons,copper‐nickel‐zinc
andcupro‐nickelalloys
H 1/8”CarbideBall 98.07(10)588.4 (60) Aluminum, zinc and lead
K 1/8”CarbideBall 98.07(10)1471 (150)
L ¼”CarbideBall 98.07(10)588.4 (60)
M ¼”CarbideBall 98.07(10)980.7 (100)
P ¼”CarbideBall 98.07(10)1471 (150)
R ½”CarbideBall 98.07(10)588.4 (60)
S ½”Carbideball 98.07(10) 980.7 (100)
V ½”Carbideball 98.07(10) 1471 (150)
15N Spheroconical
Diamond
29.42(3) 147.1 (15)
30N Spheroconical
Diamond
29.42(3)294.2 (30)
45N Spheroconical
Diamond
29.42(3)441.3 (45)
15T 1/16”CarbideBall 29.42(3) 147.1(15)
30T 1/16”CarbideBall 29.42(3)294.2(30)
45T 1/16”CarbideBall 29.42(3)441.3(45)
15W 1/8”CarbideBall 29.42(3)147.1(15)
30W 1/8”CarbideBall 29.42(3)294.2(30)
45W 1/8”CarbideBall 29.42(3)441.3(45)
15X ¼”CarbideBall 29.42(3)147.1(15)
30X ¼”CarbideBall 29.42(3) 294.2(30)
45X ¼”CarbideBall 29.42(3) 441.3(45)
15
Y
½”CarbideBall 29.42(3) 147.1(15)
30Y ½”CarbideBall 29.42(3)294.2(30)
45Y ½”CarbideBall 29.42(3)441.3(45)
BearingMetalsandothervery
softorthinmaterials.Use
smallestballandheaviestlo a d 
thatdoe s n’ t 
g
iveanvileffect.
SimilartoA,CandDscalesbut
forthinnergagematerial.
SimilartoB,FandGscalesbut
forthinner
g
a
g
ematerial.
VerySoftMaterial