Product Overview
SND-G20 Fine-Size Metal Bond Synthetic Diamond Grit
is an industrial synthetic diamond abrasive developed for manufacturers of metal-bond diamond tools. Positioned as an MBD4-comparable grade, SND-G20 features a mixed crystal structure combining irregular and semi-blocky diamond particles, with a medium-low toughness classification.
This crystal combination provides active cutting edges and controlled crystal fracture under suitable working conditions, helping maintain abrasive cutting efficiency and renew exposed cutting edges during grinding operations.
With a carbon content of at least 99.5%, controlled crystal characteristics and a range of fine mesh specifications, SND-G20 is designed for selected non-ferrous metal processing and brittle non-metal grinding applications.
Available in mesh sizes from 80/100 to 325/400, SND-G20 provides manufacturers with flexibility in abrasive selection according to workpiece material, tool design, bonding formulation and required surface finish.
Technical Specifications
SND-G20
MBD4-Comparable
Fine-Size Metal Bond Synthetic Diamond Grit
≥99.5%
Mixed Irregular & Semi-Blocky
Approx. 65–70%
Medium-Low
6,200–6,500 HV
Up to 750°C
±8%
80/100–325/400
Metal Bond
Non-Ferrous Metals & Brittle Non-Metals
Technical values are based on SinoDiam product inspection data. Thermal stability and other measured properties should be interpreted according to the corresponding test methods and conditions.
Crystal Characteristics & Performance
1. Mixed Irregular and Semi-Blocky Crystal Structure
SND-G20 features a combination of irregular and semi-blocky synthetic diamond crystals. This mixed morphology provides multiple cutting edges and supports effective abrasive action in appropriately designed metal-bond tools.
2. Medium-Low Toughness and Controlled Crystal Fracture
With its medium-low toughness classification, SND-G20 is designed to provide a balance between cutting activity and crystal retention. Under suitable working loads, controlled crystal fracture can expose fresh cutting edges and support continued abrasive performance.
3. Controlled Crystal Quality
SND-G20 features a carbon content of at least 99.5% and a measured crystal uniformity of approximately 65–70%. These characteristics support consistent abrasive material selection and manufacturing control.
4. Thermal Stability
With thermal stability up to 750°C under the specified test conditions, SND-G20 is suitable for evaluation in metal-bond tool manufacturing processes requiring controlled thermal performance.
5. Fine Mesh Size Availability
The grade is available in nine mesh specifications, covering a range of fine abrasive particle sizes for different grinding, finishing and tool manufacturing requirements.
Recommended Applications
SND-G20 is primarily developed for selected non-ferrous metal and brittle non-metal processing applications.
Non-Ferrous Metal Processing
Aluminum Alloy Grinding
Suitable for selected aluminum alloy grinding applications where controlled abrasive cutting action and appropriate metal-bond formulations are required.
Copper and Brass Processing
Designed for evaluation in copper and brass grinding and finishing tools, particularly where controlled material removal and abrasive particle selection are important.
Brittle Non-Metal Processing
Glass Grinding
Suitable for selected metal-bond abrasive tools used in glass grinding and edge-processing applications.
Industrial Ceramic Processing
Available for evaluation in ceramic grinding applications requiring controlled abrasive particle size and suitable tool construction.
Final application suitability depends on workpiece characteristics, bond formulation, diamond concentration, tool geometry and operating conditions. Application trials are recommended before production selection.
Available Mesh Sizes
SND-G20 is available in the following nine mesh specifications:
- 80/100 Mesh
- 100/120 Mesh
- 120/140 Mesh
- 140/170 Mesh
- 170/200 Mesh
- 200/230 Mesh
- 230/270 Mesh
- 270/325 Mesh
- 325/400 Mesh
The appropriate mesh size should be selected according to the required material removal rate, surface finish, tool construction and application requirements.
Metal Bond Compatibility
SND-G20 is developed primarily for metal-bond diamond abrasive tool manufacturing. Its crystal morphology and toughness characteristics should be evaluated together with the complete tool formulation.
- Metal matrix composition and bonding formulation.
- Diamond concentration and particle distribution.
- Tool geometry and manufacturing process.
- Workpiece material and grinding conditions.
- Required cutting efficiency and tool service life.
Manufacturers are encouraged to conduct application-specific tool trials to determine the optimal formulation and operating conditions.
Grade Selection Guide
SND-G20 is positioned as the MBD4-comparable grade in the SinoDiam Metal Bond Synthetic Diamond series. When selecting between grades, manufacturers should consider crystal toughness, morphology, cutting requirements and tool construction.
SND-G20
MBD4-Comparable
Medium-low toughness with mixed irregular and semi-blocky crystals.
Primary focus:
Non-ferrous metals and brittle non-metals.
SND-G30 →
MBD6-Comparable
Medium-toughness grade.
Explore the next toughness level in the SND-G series.
SND-G40 →
MBD8-Comparable
Medium-high toughness grade.
Explore a higher-toughness diamond abrasive option.
SND-G60 →
MBD10-Comparable
High-toughness grade.
Explore the higher-toughness option in the SND-G series.
For additional information about the complete product family, visit:
SinoDiam Metal Bond Mesh Diamond Series →
Frequently Asked Questions
1. What is SND-G20 metal bond diamond powder?
SND-G20 is a fine-size synthetic diamond grit developed for metal-bond abrasive tools. It is positioned as an MBD4-comparable grade and features mixed irregular and semi-blocky crystals with a medium-low toughness classification.
2. Is SND-G20 equivalent to MBD4?
SND-G20 is positioned as an MBD4-comparable grade for product selection and market reference. Actual performance comparisons should be based on crystal morphology, toughness testing, particle size distribution and tool application results.
3. What materials can SND-G20 process?
Its target applications include selected non-ferrous metals such as aluminum alloys, copper and brass, as well as brittle non-metal materials such as glass and industrial ceramics.
4. What mesh sizes are available?
SND-G20 is available in nine mesh specifications, from 80/100 to 325/400 mesh, covering a range of fine abrasive particle sizes for different grinding and finishing requirements.
5. Which bonding system is SND-G20 designed for?
SND-G20 is primarily developed for metal-bond diamond abrasive tools. Final compatibility depends on the metal matrix, bonding formulation, diamond concentration and manufacturing process.
6. What information should I provide for a quotation?
Please provide your required mesh size, target material, tool type, bonding formulation, estimated quantity and destination country. SinoDiam can assist with grade selection and relevant technical information.
SINODIAM INTERNATIONAL · TECHNICAL SUPPORT
Request SND-G20 Technical Information & Quotation
Looking for fine-size metal-bond synthetic diamond grit for your abrasive tool manufacturing business?
Contact SinoDiam with your required mesh size, target workpiece material, tool design, bonding system and estimated quantity.
Our technical team can help evaluate SND-G20 and other metal-bond diamond grades according to your manufacturing requirements.
