YAMAMOTO Yamamoto Scientific Co., Ltd. is a company specializing in the production of various benchmark test strips with the manufacturing expertise provided by academia and the manufacturing technology of the industry. The various standard strips produced are consistently recommended by the world. "Stable quality "It's its consistent appeal.
ISO. JIS standard high-precision hardness reference sheet used to test the hardness
| Types of hardness reference films and standard call hardness | |
| HMV(1, 0.1) | 1650 |
|---|---|
| HMV(1, 0.1, 0.01) | 900, 800, 700, 600, 500, 400, 300, 200, 100, 40 |
| HMV(0.2, 0.05, 0.01) | 30(Au) |
| HV(30, 1) | 1000, 900, 800, 700 |
| HV(10, 1) | 600, 500, 400, 300, 200, 100, 40 |
| Semi HV(5, 0.3) | 900, 800, 700, 600, 500, 400, 300, 200, 100, 40 |
| HS | 100, 95, 90, 80, 70, 60, 50, 40, 30, 20, 7 |
| HL(LeeD) | HLE(Dia) 850, 800, 700, 600, 500 |
| HLD(WC) 880, 830, 730, 620, 520 | |
| HR C | 70, 67, 64, 62, 60 |
| 57, 55, 50, 45, 40, 35, 30, 25, 20, 10 | |
| HR A | 87, 85, 83, 81, 78, 75, 71, 65, 56 |
| HR30N | 83, 81, 78, 73, 67, 60, 55, 50, 41 |
| HR15N | 92, 90, 87, 85, 80, 75 |
| HR B | 100, 95, 90, 82, 72, 62, 52, 42, 32 |
| HR30T | 78, 72, 62, 52, 42, 38, 32 |
| HR15T | 87, 82, 78 |
| HR(EMLR) | HR E 90, HR M 107, 67, HR L 118, 92, HR R 123, 105 |
| HBW(10/3000) | 600, 550, 500, 450, 400, 350 |
| HB(10/3000) | 300, 250, 229(d=4mm), 200, 180, 150 |
| HB(10/500) | 125, 100 |
- The Shaw benchmark film correctly shows the Shaw's unique backwash hardness.
- The hardness standard is based on the correct world-recognized value.
- More than one hardness irregularity (error range) is very narrow with ideal hardness uniformity.
- Easy to manage combination.
HR C: 60, 50, 30
HR: 90, 60, 30
Semi HV: 700, 200
HB: 229
Charpy V-Notch Test Blocks
Based on JIS B 7740-90
- Features: The unevenness of energy absorbed by a single beam is minimal (CV: 3% or less)
- Material: SNCM439.QT (based on JIS4 test piece)
- With NK certification
| Energy type | Energy level |
|---|---|
| Ultra high energy | 180 J (approximately) |
| high energy | 100 J (approximately) |
| low energy | 30 J (approximately) |
| A group of 5 for each level | |
Microscope tissue standard sheet
Attached is a detailed explanation of the microscope organization standard sheet, photos, and recordings of metal materials.
- Category 1: Carbon steel, cast iron part
- Category 2: Alloy tool steel high speed tool steel part
- Category 3: Special purpose steel part of alloy steel for construction
- Category 4: Non-ferrous alloy parts
- (Out of print) 25 kinds of new materials and new materials, 1~4 categories each
- Newly launched 25 kinds of metal surface modification parts of category 6
- AGSETCHING SET: used to show steel austenitic crystal grain boundaries, based on JIS G 0551
Hardnester
Standard File for Scratch hardness
PAT. No. 196592
From the steel material to the thin layer, you can know the hardness of all parts with just one touch
Spark test standard sheet
Based on JIS G 0566-1980.
You can know the steel grade of JIS steel material.
It is most suitable for on-site work or teaching such as mechanical work and heat treatment.
