The effect of central environmental inspections for world market

Why products' price rise and lead time delay from China market? Here is the reason!

China launched a new round of central environmental inspections covering eight provincial-level areas. A total of eight inspection teams have started month-long on-site investigations into local government work, including Jilin, Zhejiang and Shandong provinces.

All of EBP products lead time 1-3 working days after receive payment.

EBPu Electromechanical Equipment (Zhejiang) Co., Ltd.

Add.: 56-57 Multiple-use Building, Danshan Industrial Zone, Wenling City, China

Mobile / Whatsapp: +86-13524552810 / 15157693888

Office tel: +86-0576-8601 1208   Web: www.hiebp.com 

Office time: 8:00a.m - 17:00p.m    Monday - Friday

Facebook: https://www.facebook.com/JackZhou8 

EBP Brand Hardness tester and NDT products

Any friends interested in to buy it, please contact us at:

EBPu Electromechanical Equipment (Zhejiang) Co., Ltd.

Add.: 56-57 Multiple-use Building, Danshan Industrial Zone, Wenling City, China

Mobile / Whatsapp: +86-13524552810 / 15157693888

Office tel: +86-0576-8601 1208   Web: www.hiebp.com 

Office time: 8:00a.m - 17:00p.m    Monday - Friday

Facebook: https://www.facebook.com/JackZhou8 

EBP brand Touch Screen Digital Micro Vickers hardness tester DV-1AT-4.3

Any friends interested in to buy it, please contact us at:

EBPu Electromechanical Equipment (Zhejiang) Co., Ltd.

Add.: 56-57 Multiple-use Building, Danshan Industrial Zone, Wenling City, China

Mobile / Whatsapp: +86-13524552810 / 15157693888

Office tel: +86-0576-8601 1208   Web: www.hiebp.com 

Office time: 8:00a.m - 17:00p.m    Monday - Friday

Facebook: https://www.facebook.com/JackZhou8 

EBP brand Micro Vickers hardness tester V-1A / V-1M

Any friends interested in to buy it, please contact us at:

EBPu Electromechanical Equipment (Zhejiang) Co., Ltd.

Add.: 56-57 Multiple-use Building, Danshan Industrial Zone, Wenling City, China

Mobile / Whatsapp: +86-13524552810 / 15157693888

Office tel: +86-0576-8601 1208   Web: www.hiebp.com 

Office time: 8:00a.m - 17:00p.m    Monday - Friday

Facebook: https://www.facebook.com/JackZhou8 

EBP brand Touch screen Digital Micro Vickers hardness tester DV-1AT-5.6

Any friends interested in to buy it, please contact us at:

EBPu Electromechanical Equipment (Zhejiang) Co., Ltd.

Add.: 56-57 Multiple-use Building, Danshan Industrial Zone, Wenling City, China

Mobile / Whatsapp: +86-13524552810 / 15157693888

Office tel: +86-0576-8601 1208   Web: www.hiebp.com 

Office time: 8:00a.m - 17:00p.m    Monday - Friday

Facebook: https://www.facebook.com/JackZhou8 

EBP brand Digital Micro Vickers hardness tester Operation Video

Any friends interested in to buy it, please contact us at:

EBPu Electromechanical Equipment (Zhejiang) Co., Ltd.

Add.: 56-57 Multiple-use Building, Danshan Industrial Zone, Wenling City, China

Mobile / Whatsapp: +86-13524552810 / 15157693888

Office tel: +86-0576-8601 1208   Web: www.hiebp.com 

Office time: 8:00a.m - 17:00p.m    Monday - Friday

Facebook: https://www.facebook.com/JackZhou8 

EBP ultrasonic flaw detector Angle probe DAC Instruction video

Any friends interested in to buy it, please contact us at:

EBPu Electromechanical Equipment (Zhejiang) Co., Ltd.

Add.: 56-57 Multiple-use Building, Danshan Industrial Zone, Wenling City, China

Mobile / Whatsapp: +86-13524552810 / 15157693888

Office tel: +86-0576-8601 1208   Web: www.hiebp.com 

Office time: 8:00a.m - 17:00p.m    Monday - Friday

Facebook: https://www.facebook.com/JackZhou8 

EBP brand Ultrasonic flaw detector Outlook Instructions of EFD-300 model

Any friends interested in to buy it, please contact us at:

EBPu Electromechanical Equipment (Zhejiang) Co., Ltd.

Add.: 56-57 Multiple-use Building, Danshan Industrial Zone, Wenling City, China

Mobile / Whatsapp: +86-13524552810 / 15157693888

Office tel: +86-0576-8601 1208   Web: www.hiebp.com 

Office time: 8:00a.m - 17:00p.m    Monday - Friday

Facebook: https://www.facebook.com/JackZhou8 

Rockwell hardness tester

The Rockwell scale is a hardness scale based on indentation hardness of a material. The Rockwell test determines the hardness by measuring the depth of penetration of an indenter under a large load compared to the penetration made by a preload. There are different scales, denoted by a single letter, that use different loads or indenters. The result is a dimensionless number noted as HRA, where A is the scale letter.

It is typically used in engineering and metallurgy. Its commercial popularity arises from its speed, reliability, robustness, resolution and small area of indentation.

In order to get a reliable reading the thickness of the test-piece should be at least 10 times the depth of the indentation. Also, readings should be taken from a flat perpendicular surface, because convex surfaces give lower readings. A correction factor can be used if the hardness of a convex surface is to be measured.

Test range:

(20～88) HRA; (20～100) HRB; (20～70) HRC

Scales and values

Scale	Abbreviation	Load	Indenter	Use
A	HRA	60 kgf	120° diamond cone	Tungsten carbide
B	HRB	100 kgf	1⁄16-inch-diameter (1.588 mm) steel sphere	Aluminium, brass, and soft steels
C	HRC	150 kgf	120° diamond cone	Harder steels >B100
D	HRD	100 kgf	120° diamond cone
E	HRE	100 kgf	1⁄8-inch-diameter (3.175 mm) steel sphere
F	HRF	60 kgf	1⁄16-inch-diameter (1.588 mm) steel sphere
G	HRG	150 kgf	1⁄16-inch-diameter (1.588 mm) steel sphere

Standards:

• International (ISO)

ISO 6508-1: Metallic materials -- Rockwell hardness test -- Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T)

ISO 2039-2: Plastics -- Determination of hardness -- Part 2: Rockwell hardness

• US standard (ASTM International)

ASTM E18 : Standard methods for Rockwell hardness and Rockwell superficial hardness of metallic materials

EBP related products:

Any friends interested in purchase Rockwell hardness tester, please contact us at:

EBPu Electromechanical Equipment (Zhejiang) Co., Ltd.

Add.: 56-57 Multiple-use Building, Danshan Industrial Zone, Wenling City, China

Mobile / Whatsapp: +86-13524552810 / 15157693888   Skype: zhoujiwei29

Office tel: +86-0576-8601 1208   Web: www.hiebp.com 

Office time: 8:00a.m - 17:00p.m    Monday - Friday

Facebook: https://www.facebook.com/JackZhou8 

EBP brand DV-1AT-10.2 Digital Micro Vickers hardness tester operation video

EBP brand Inverted Trinocular Metallurgical Microscope installation video (www.hiebp.com)

Vickers hardness tester

The Vickers test can be used for all metals and has one of the widest scales among hardness tests. The unit of hardness given by the test is known as the Vickers Pyramid Number (HV) or Diamond Pyramid Hardness (DPH). The hardness number can be converted into units of pascals, but should not be confused with a pressure, which also has units of pascals. The hardness number is determined by the load over the surface area of the indentation and not the area normal to the force, and is therefore not a pressure.

1. Name:

The Vickers hardness test was developed in 1921 by Robert L. Smith and George E. Sandland at Vickers Ltd as an alternative to the Brinell method to measure the hardness of materials.

1) Max. Test force is 1000g, we generally call it Micro Vickers hardness tester / Micro hardness tester.

2) Max. Test force is over 1000g (2kg, 5kg, 10kg, 30kg, or 50kg), we generally call it Macro Vickers hardness tester / Vickers hardness tester.

2. Indenter: 136°diamond indenter

3. Working Principle

After a test, the indenter will make a indentation on the surface of workpiece. Measuring the two diagonals’ length of indentation , then input the length value into machine, the hardness will show on the screen.

4. Representing Method

Vickers hardness numbers are reported as xxxHVyy, e.g. 440HV30

• 440 is the hardness number,

• HV gives the hardness scale (Vickers),

• 30 indicates the load used in kgf.

5. Standard

• ASTM E92: Standard method for Vickers hardness of metallic materials (Withdrawn and replaced by E384-10e2)

• ASTM E384: Standard Test Method for Knoop and Vickers Hardness of Materials

• ISO 6507-1: Metallic materials - Vickers hardness test - Part 1: Test method

• ISO 6507-2: Metallic materials - Vickers hardness test - Part 2: Verification and calibration of testing machines

• ISO 6507-3: Metallic materials - Vickers hardness test - Part 3: Calibration of reference blocks

• ISO 6507-4: Metallic materials - Vickers hardness test - Part 4: Tables of hardness values

• ISO 18265: Metallic materials - Conversion of Hardness Values

EBP related products:

Any friends interested in purchase Micro / Macro Vickers hardness tester, please contact us at:

EBPu Electromechanical Equipment (Zhejiang) Co., Ltd.

Add.: 56-57 Multiple-use Building, Danshan Industrial Zone, Wenling City, China

Mobile / Whatsapp: +86-13524552810 / 15157693888   Skype: zhoujiwei29

Office tel: +86-0576-8601 1208   Web: www.hiebp.com 

Office time: 8:00a.m - 17:00p.m    Monday - Friday

Facebook: https://www.facebook.com/JackZhou8 

EBP Portable Leeb hardness tester

This portable method is mainly used for testing sufficiently large workpieces (mainly above 1 kg).

Method:

When using the dynamic Leeb principle, the hardness value is derived from the energy loss of a defined impact body after impacting on a metal sample, similarly to the Shore scleroscope. The Leeb quotient (vi,vr) is taken as measure of the energy loss by plastic deformation: the impact body rebounds faster from harder test samples than it does from softer ones, resulting in a greater value 1000×vr/vi.When using a magnetic impact body, the velocities can be deduced from the voltage induced by the body as it moves through the measuring coil. The quotient 1000×vr/vi is quoted in the Leeb rebound hardness unit HL.

Scales:

Depending on the probe (“impact device”) and indenter (“impact body”) types that vary by geometry, size, weight, material and spring force, diverse impact devices and hardness units are distinguished, e.g.:

• Equotip impact device D with hardness unit HLD

• Equotip impact device G with hardness unit HLG

Generally, impact device types are optimized for certain application fields. This is similar to using various indenter geometries and test loads in Rockwell (e.g. HRA, HRB, HRC), Brinell and Vickers. Leeb hardness results in HL are often converted to the traditional hardness scales HRC, HB and HV mainly for convention reasons between supplier and customer.

Standards:

• American standards:

ASTM A956 “Standard Test Method for Leeb Hardness Testing of Steel Products”

ASTM E140 - 12be1 "Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness"

• International standards:

ISO/DIS 16859-1 "Metallic materials - Leeb hardness test - Part 1: Test method"

ISO/DIS 16859-2 "Metallic materials - Leeb hardness test - Part 2: Verification and calibration of the testing devices"

ISO/DIS 16859-3 "Metallic materials - Leeb hardness test - Part 3: Calibration of reference test blocks"

EBP related products:

Any friends want to buy these hardness tester, please contact us at:

EBPu Electromechanical Equipment (Zhejiang) Co., Ltd.

Add.: 56-57 Multiple-use Building, Danshan Industrial Zone, Wenling City, China

Mobile / Whatsapp: +86-13524552810 / 15157693888

Office tel: +86-0576-8601 1208   Web: www.hiebp.com 

Office time: 8:00a.m - 17:00p.m    Monday - Friday

Facebook: https://www.facebook.com/JackZhou8 

Skype: zhoujiwei29