Shenyang Tianxing W-BB75 series Wehrlich Hardness Tester is divided into two models: W-BB75 and W-BB75b, which are used to test copper pipes of different diameters. Shenyang Tianxing W-BB75/W-BB75b Webster Hardness Tester is a testing instrument that can quickly test the hardness of copper on site. The W-BB75 Webster Hardness Tester is mainly used to test copper tubes and copper strips . The W-BB75b model is used for testing copper tubes and copper strips. For testing fine copper pipes with a minimum inner diameter of 6mm. Shenyang Tianxing W-BB75 series Wehrlich Hardness Tester is easy to use. As long as the test plate is clamped with the Hardness Tester, the hardness value can be directly displayed, with high efficiency and good reliability. The W-BB75 series Weschler Hardness Tester is the preferred instrument for testing the mechanical properties of copper tubes.

| model | W-BB75 | W-BB75b |
| Minimum specimen inner diameter | Ï10mm | Ï6mm |
| Maximum specimen thickness | 6mm | 8mm |
| Measuring range | 0-20HW (equivalent to 30-96HRF) | |
| Indication error | 0.5HW (5-17HW) | |
| Repeatability Error | 0.5HW (5-17HW) | |
| weight | 0.5kg | |
â Nonferrous metal industry standard YS/T 471-2004 "Webster Hardness test method for copper and copper alloys"
âNational Metrology Verification Regulations JJG944-2013 "Metal Webster Hardness Tester"
Shenyang Tianxing W-BB75 series Weschler Hardness Tester is used to quickly detect the hardness of copper pipes, plates and strips. It is particularly suitable for fast, non-destructive piece-by-piece conformity inspection of batches of products at production sites, sales sites or construction sites.
1. Indenter: The indenter is made of imported special steel materials and new technology. It has high hardness, good toughness, long life and good interchangeability. The outer packaging imported from Germany provides comprehensive protection for the pressure needle.
2. Pointer assembly: High-strength pointer, which is not easy to bend or deform after long-term use or incorrect operation.
3. Surface window: High-strength, high-toughness surface window glass is not easy to break after being impacted.
4. Handle: Forged aluminum alloy material, anodized upper handle, beautiful, wear-resistant and pollution-resistant.
5. Hardness block: Use a standard Rockwell Hardness Tester and carry out the determination in strict accordance with the measurement and verification procedures. The laser etched serial number and hardness value can be traced within the validity period. Surface roughness and flatness meet regulatory requirements.
6. High quality: Fine parts processing, precise machine assembly, and strict quality inspection ensure the high quality of the instrument.
7. Good stability: the full-scale point is stable, the calibration point is stable, and the pointer does not "crawl".
8. Convenient conversion: Through the conversion table attached to the product manual or the "Hardness Conversion" mobile application, the Webster hardness value can be converted into Vickers, Rockwell, Brinell and other hardness values.
9. Portability: High-quality portable instrument case and well-fitting cushioning sponge provide portability for the W-BB75 series Webster Hardness Tester while also protecting the W-BB75 series Webster Hardness Tester as much as possible.
Main unit, Wehrmer hardness block, small screwdriver, spare indenter, calibration wrench, instrument case
Indenter, Wehrmer hardness block, watch window glass

朱绯红 - 《浅谈里氏硬度计应用和检测》