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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
4.5 ★★★★★
Based on 1734 reviews
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Product Reviews
★★★★★ 1
not good
Size: 4.2 Fl Oz (Pack of 1)
this burn my skin, this is not Dr. Sebi because is no longer with us.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
★★★★★ 3
On the fence...
Will be updating review after I have used it for more than a week.
But so far here are the pros and cons:
Pros:
Smells good
Seems like a little goes a long way
Easy to apply
Cons:
Not sure if this is because I didn't use Sulfate free shampoo, but felt like with one wash I didn't get all the product out of my hair, so when It dried, it still looked greasy/oily
Will be washing my hair again with sulfate free shampoo, then will do another application in another day or so.
it says to use 2-3 times a week, so I'll use it 3 times a week for 2 weeks and then come back and update my review. But so far, it seams like a good product and for the money, it's a fair value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2026
★★★★★ 5
Gear set!
Amazing kit lasts a long time and makes my skin so smooth and hydrated.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
★★★★★ 5
good product
Effectiveness:
This serum focuses on brightening, uneven tone, and early signs of aging using two stabilized forms of vitamin C plus supportive antioxidants. With consistent use, it can help improve overall radiance and reduce the look of dark spots gradually rather than delivering fast, dramatic fading.
Texture & Application:
Lightweight, silky, and smooth. It spreads easily and absorbs quickly without feeling greasy or heavy. The airless pump helps keep the formula stable and prevents oxidation, which is important for vitamin C products.
Key Ingredients Performance:
Vitamin C (two stabilized forms) supports brightness and antioxidant protection
Kojic acid ester helps even skin tone over time
Oryzanol (rice bran antioxidant) helps enhance brightening effects and supports skin defense
Overall, it’s a gentler vitamin C approach compared to high-strength L-ascorbic acid serums, making it more suitable for sensitive or beginner users.
Skin Feel / Finish:
Leaves a soft, natural finish with no sticky residue. It layers well under moisturizer and sunscreen and doesn’t pill when used correctly. Suitable for daily AM or PM use.
Durability of Results:
Improvements are gradual—typically noticeable after several weeks of consistent use. Best results come with daily sunscreen use since vitamin C works synergistically with UV protection.
Value:
Very strong value for a budget-friendly serum. It delivers multiple brightening ingredients at a low price point, making it accessible for everyday skincare routines.
Overall:
A gentle, affordable vitamin C serum that prioritizes steady brightening, antioxidant support, and skin tone improvement over high-intensity results. Best for beginners, sensitive skin, or anyone wanting a simple daily glow-boosting step.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
★★★★★ 5
Amazing Vitamin C at an Affordable Price!
This Vitamin C serum from Good Molecules is honestly one of the best I’ve tried! The texture feels so smooth and lightweight on the skin, it absorbs quickly and leaves my face feeling hydrated without being sticky. It’s super effective for fading acne scars and dark spots, and I always notice extra brightness and glow the next morning after using it.
What makes it even better is how affordable it is compared to other Vitamin C serums—such great quality for the price! Plus, the bottle lasts a long time since just two pumps are enough for the entire face. Gentle scent, hydrating, effective, and budget-friendly… I couldn’t recommend it more
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 3, 2025
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