Tungsten Carbide Grades Chart – YG/YK Series Specs | SourcingProChinaTungsten Carbide Grades – Complete Specification & Comparison Chart (YG/YK Series)
Product Overview
SourcingProChina is a sourcing agent based in China, connecting overseas buyers with qualified tungsten carbide manufacturers. This page provides a complete specification chart for tungsten carbide grades commonly available from our manufacturing network, covering WC/Co content, grain size, density, and hardness — the four core parameters buyers use to select the correct grade for a given application.
Use the table below to identify the grade closest to your application requirement, then contact us with your specification or drawing for a manufacturer quote and material certificate.
Technical Specifications
General Grades
| Grade | WC (%) | Co (%) (±0.5) | Grain Size | Density (g/cm³ ±0.1) | Hardness (HRA ±0.5) |
|---|
| YG6 | 94 | 6 | Medium | 14.95 | 89.5 |
| YG6X | 94 | 6 | Fine | 14.95 | 91.5 |
| YG8 | 92 | 8 | Medium | 14.75 | 89.0 |
| YL10.2 | 90 | 10 | Fine | 14.50 | 91.5 |
| YG11 | 89 | 11 | Medium | 14.40 | 88.5 |
| YG12A | 88 | 12 | Ultra Fine | 14.12 | 92.5 |
Mining & Oil Tool Parts Grades
| Grade | WC (%) | Co (%) (±0.5) | Grain Size | Density (g/cm³ ±0.1) | Hardness (HRA ±0.5) |
|---|
| YG15 | 85 | 15 | Medium | 14.00 | 87.5 |
| YG20 | 80 | 20 | Medium | 13.50 | 85.5 |
Cutters Grades
| Grade | WC (%) | Co (%) (±0.5) | Grain Size | Density (g/cm³ ±0.1) | Hardness (HRA ±0.5) |
|---|
| YG8 | 92 | 8 | Medium | 14.75 | 89.0 |
| YG11C | 88.5 | 11.5 | Coarse | 14.40 | 87.0 |
| YG13C | 87 | 13 | Coarse | 14.20 | 86.5 |
Additional Grades Available
| Grade | WC (%) | Co (%) (±0.5) | Grain Size | Density (g/cm³ ±0.1) | Hardness (HRA ±0.5) |
|---|
| YG15 | 85 | 15 | Medium | 14.00 | 87.5 |
| YG15C | 85 | 15 | Coarse | 14.00 | 86.5 |
| YK05 | 94 | 6 | Coarse | 14.90 | 90.5 |
| YK10 | 92 | 8 | Coarse | 14.70 | 88.8 |
| YK20 | 90 | 10 | Coarse | 14.50 | 87.2 |
| YK25 | 88 | 12 | Coarse | 14.50 | 87.5 |
| YG6A | 91.5 | 8.5 | Ultra Fine | 14.90 | 92.0 |
| YS2T | 89.8 | 10.2 | Fine | 14.50 | 91.5 |
| YG16C | 84 | 16 | Coarse | 13.90 | 85.5 |
| YG18C | 82.5 | 17.5 | Coarse | 13.70 | 84.5 |
| YG20C | 79.5 | 20.5 | Coarse | 13.50 | 83.5 |
| YG22C | 77.5 | 22.5 | Coarse | 13.30 | 83.0 |
| YG25C | 75 | 25 | Coarse | 13.10 | 82.5 |
Key Features & Advantages
- Grade range spans 15+ standard specifications covering WC content from 75% to 94%, allowing selection by exact application requirement rather than approximation
- Grain size options from ultra-fine to coarse, directly affecting the hardness/toughness trade-off for each grade
- WC and Co content controlled to the tolerances listed above, verified against the specification sheet for each production batch
- Sourced through a vetted manufacturer network; material certificates available upon request for each shipment
Applications by Grade
- High hardness grades (YG6X, YG12A, YG6A): precision cutting tools, high-speed machining where wear resistance is the priority
- Fine grain grades (YG6X, YL10.2, YS2T): general purpose cutting tools requiring a balance of hardness and edge sharpness
- Medium grain grades (YG6, YG8): general wear parts and standard tooling
- Coarse grain grades (YG11C, YG13C, YG15C, YG16C–YG25C): heavy-duty machining and impact-resistant applications such as forging dies
- Mining grades (YG15, YG20): rock drilling bits and mining tool inserts where toughness under repeated impact is required
Frequently Asked Questions
Q1: How do I select the right carbide grade for my application?
A: Match your application's dominant requirement — wear resistance vs. impact toughness — to the grain size and Co content columns above. Higher Co content and coarser grain increase toughness; lower Co content and finer grain increase hardness. Send us your current tool drawing or failure mode and we will recommend the closest grade from our manufacturer network.
Q2: What is the difference between fine and coarse grain carbide?
A: Fine grain carbide (e.g. YG6X, YS2T) provides higher hardness and wear resistance for precision cutting. Coarse grain carbide (e.g. YG16C–YG25C) provides higher toughness and impact resistance for heavy-duty or forging applications, at the cost of some wear resistance.
Q3: What testing and certification do you provide?
A: Chemical composition (WC/Co%), density, and hardness are verified per batch. [需补充具体数据：具体检测标准编号、检测机构与是否提供第三方检测报告]
Q4: Do you offer custom grades or only standard grades?
A: Both. Standard grades listed above are typically available from stock at partner factories; custom WC/Co ratios or grain sizes require a technical consultation and minimum order confirmation.
Q5: What is the typical grain size range available, and how is it measured?
A: Grain size options range from ultra-fine (approx. 0.2–0.5μm) to coarse. [需补充具体数据：粗晶粒具体μm区间及检测方法]
Q6: What are your MOQ and lead time for these grades?
A: MOQ and lead time vary by grade and order volume — standard grades are generally available faster than custom compositions. Contact us with your target grade and quantity for a confirmed quote.
Get a Quote for Your Required Grade
If you have a target grade, drawing, or failure sample, send it to our sourcing team for a manufacturer quote, material certificate, and lead time confirmation.
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