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Description
GOYOJO HR-150A Manual Metal Micro Hardness TesterProduct Description HR 150A double handle type is another fundamental model of all rockwell types,it is favored by most customers mainly because of its mechanical and manual testing mode,which is durable and stable. Without electrical power supply,and with simple designed appearance and single handle,it is very easy to operate,as well as economical and practical performance and wide using scope. There is no parameter distinguish between single and
Product Description
HR-150A double handle type is another fundamental model of all rockwell types,it is favored by most customers mainly because of its mechanical and manual testing mode,which is durable and stable.
Without electrical power supply,and with simple designed appearance and single handle,it is very easy to operate,as well as economical and practical performance and wide using scope.
There is no parameter distinguish between single and double handle type,it only depends on the user's operation habit and personal hobby.
Without electrical power supply,and with simple designed appearance and single handle,it is very easy to operate,as well as economical and practical performance and wide using scope.
There is no parameter distinguish between single and double handle type,it only depends on the user's operation habit and personal hobby.
Using Scopes:
● Rockwell Hardness Testing of Ferrous Metal,Non-ferrous Metalt and Non-metallic Material.
● Hardened and surface hardened steel, hardening and tempering steel, tempered steel, cold and hard casting parts, forging parts, hard alloy steel, aluminum alloy,bearing steel, carburized steel sheet, etc.
Feature:
● Easy to use, and the test force can be applied and unloaded by a handle;
● Dial direct reading, HRA, HRB, HRC scale;
● Other scales of Rockwell are optional;
● High precision of indication, easy installation and low failure rate
Rockwell Hardness Range:
|
Rockwell hardness scale
|
Hardness symbol
|
Indenter type |
Initial l force Fo (kg)
|
main force F1 (kg)
|
Total force F(KG)
|
Constant
|
Scope of application
|
Examples of application
|
|
A
|
HRA
|
diamond cone indenter
|
10
|
50
|
60
|
100
|
20-88HRA
|
Hard metal and hard alloy
|
|
B
|
HRB
|
1.5875mmball indenter |
10
|
90
|
100
|
130
|
20-100HRB
|
Nonferrous metal and soft metal
|
|
C
|
HRC
|
diamond cone indenter |
10
|
140
|
150
|
100
|
20-70HRC
|
heat treatment steel
|
|
D
|
HRD
|
diamond cone indenter |
10
|
90
|
100
|
100
|
40-77HRD
|
Surface hardened steel
|
|
F
|
HRF
|
1.5875mmball indenter |
10
|
50
|
60
|
130
|
60-100HRF
|
Nonferrous metal
|
|
G
|
HRG
|
1.5875mmball indenter |
10
|
140
|
150
|
130
|
30-94HRG
|
iron, copper nickel, zinc alloy
|
● A scale: It is suitable for testing the metal more than 70HRC, such as tungsten carbide, hard alloy as well as the hard sheet material and the hardening material on the surface layer.
● B scale: It is suitable for testing non-ferrous metals and alloys, annealing steel or soft or medium hardness of materials.
● C scale: It is suitable for testing the carbon steel, tool steel and alloy steel.
|
Model
|
HR-150A
|
|
Initial Testing Force
|
10kgf(98.07N)
|
|
Hardness Resolution |
0.5HR |
|
Testing Force
|
60kgf(588.4N) 100kgf(980.7N) 150kgf(1471N)
|
|
Rockwell Scale
|
HRA,HRB,HRC,HRD,HRE,HRF,HRG,HRH,HRK |
|
Testing Range
|
HRA:20-88 HRB:20-100 HRC:20-70 HRD:40-77 |
|
HRF:60-100 HRG:30-94 HRH:80-100 HRK:40-100 |
|
|
DataDisplay mode
|
Dial
|
|
Operate Mode |
Double Handle |
|
Carried Standard
|
GB/T230.1/.2 National Standard,ISO 6508-2,ASTM E18 |
|
Max Height of Specimens |
170mm
|
|
Max depth of specimens |
135mm
|
|
Dimension (cm)
|
65*40*81(L*W*H)
|
|
Packing Weight
|
80KG
|
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
There is a seam up the front. I think perhaps it being seamless would be better.
Size: Medium, Color: Black
Like anything off Amazon I wasnt expecting anything perfect and ready to have to mail it back.
Pleasantly surprised by the softness and durability. The waist band isn't to small on a medium so it fits actually so comfy.
I wear them as underwear and as shorts for my skirts n dresses.
Id recommend but I say size up if you want a comfy fit. But down if you want a fitted fit fit. Comfy still is fitted but better feeling on if that makes sense.
Also the crotch of the shorts/undies has essentially extra fabric sewed in creating that nice comfort. Ill snag a photo when I have time.
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Reviewed in the United States on May 3, 2026
★★★★★ 4
Product varies from package to package
Size: X-Large, Color: Black/Navy/Dark Purple/Red
Over a two year period this is my 4th purchase. They started as sleep shorts and have replaced other underwear most of the time because they are comfortable and the quality is pretty good. However there are differences in between every package. The length has varied up to an inch, the material has changed, and some are slightly tighter than others. That said it works for me. I am a side sleeper and sometimes the side seam bothers me.
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Reviewed in the United States on March 9, 2026
★★★★★ 5
Very comfortable in the Texas heat.
Size: Small, Color: Black/Navy/Dark Purple/Red
I got some of these as a gift and I loved them so much I purchased two more packs. I just opened my new packs and put them in the washer so I'm not leaving a photo. When I wear them they look exactly like they do on the models.
I've been doing a lot of heavy outdoor work in the heat and I get drenched. These underwear have a 100% cotton crotch and the rest is 95% cotton and 5% spandex. When I first saw the wide crotch I didn't think I would like it. But these are soooo comfortable. I'm 4'11" and weight 108-112 and the size small fits loosly but well. I could probably get away with an XS but I like this loose and not too tight fit. I see some folks say these roll up. They don't roll up on me. I think they might roll if they were tight fitting. I have lots of other undergarments like these and some roll and some don't. But none of the others are cotton. They are mostly spandex and since I've found these in cotton that's all I'm wearing until summer is over. I can't feel them or see them under pants or skirts.
These look more like shorts than underwear and they have a very nice thickness. Since I only had four pair to begin with, those got washed and dryed a lot. I can't tell if they shrunk since I only tried them after washing. Sorry I forgot to compare the size of the new ones to the older ones before I threw them in the washer. I'll probably buy another set and compare at that time. One thing I can report is that they do not fade at all. I just washed the black, purple and red colors with the white color and the white is still completely white.
Now I have more colors and I'll probably be walking around in my underwear and no one will know.
The only con I can think of is the wide crotch wouldn't work well with pads with wings, in my opinion.
Try a size larger for a nice cool pair of sleeping shorts to see how they fit while they are on sale. Then go smaller if needed. I think you might enjoy these.
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Reviewed in the United States on July 10, 2024
★★★★★ 5
So comfortable and worth the buy
Size: Large, Color: Black
So comfortable!!! There is no seam in the butt and under neath, only in the front but it is really soft and non irritating. I got these for post partum but I’m already wearing them at 8.5 months pregnant. They’re probably my favorite undies right now. The length is also perfect and the material is very soft and stretchy. The waist band is the same, soft and stretchy.
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Reviewed in the United States on April 11, 2026
★★★★★ 3
Cotton Blend Was Just Too thick
Size: 3X-Large, Color: Black
I was surprised by how thick these boxers were, thicker than my jeans, much thicker than my PJs! Thick enough that I could wear them outside the home without jeans. In spite of the thickness, they were soft and very comfortable. The 3XL is a perfect fit on my 5’2” apple shaped, short waisted 215 lb body. The boxer cut helped prevent chafing, a major plus. Menstrual pads, with or without wings, do not adhere to this material, a major minus. Ultimately, feeling like I was wearing jeans to bed or wearing two pairs of pants outside the home, was just too uncomfortable for me. So disappointed because these boxers were such a great and comfortable fit.
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Reviewed in the United States on April 4, 2026