에스피박스 : 경도환산표, 금속무게계산 - 에스피열처리

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About this app

SP Box: Hardness conversion, metal weight calculation - SP heat treatment

Manufacturing solution provider SPBOX

SPBOX is an app that automatically converts specific hardness values ​​into Rockwell, Shore, Vickers, Brinell, and tensile strength.
You can conveniently immediately convert to the desired hardness value using your smartphone at the work site.
In addition, we also provide a metal weight calculation that allows you to easily calculate the weight of products whose weight is difficult to confirm through drawings alone.

[Convertible hardness]
1. Vickers | VICKERS
2. Rockwell | ROCKWELL (A, B, C, D)
3. Rockwell surface | ROCKWELL SUPERFICIAL (HR15N, HR30N, HR45N)
4. Shore | SHORE
5. Brinell | BRINE
6. Tensile strength | TENSILE STRENGTH

* Values ​​that are not generally used are indicated with ( ).

[Metal weight calculation]
1. Plate weight calculation (plate weight calculation)
2. Calculate the weight of the round bar
3. Calculate pipe weight

SPBOX plans to continuously update various calculation values ​​needed in manufacturing sites in the future.
If there is anything you frequently use in the field, please contact us and we will implement it into an app to contribute to increasing work productivity.
thank you


Idea proposal/inquiry
Email: sp_ht@naver.com
Mobile: 010-9310-5275

Development company information
Address: 39 Gamjeoncheon-ro, Sasang-gu, Busan (Gamjeon-dong)
Company Name: SP Heat Treatment
Phone: 051-313-1072
Manufacturing Solver SPBOX
Updated on
Nov 23, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Device or other IDs
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit
  • Data can’t be deleted

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About the developer
박기혁
sp_ht@naver.com
감전천로 39 에스피열처리 사상구, 부산광역시 47029 South Korea