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Expandable Graphite Powder Expanded Graphite 200-300times For Refractory Materials
Place of Origin:
Qingdao
Brand Name:
Hensen
Model Number:
7015070
Minimum Order Quantity:
20 GP container
Price:
USD$2200/TON
Packaging Details:
Small bag+big bag total 18 tons for 20' feet container
Delivery Time:
30 working days
Payment Terms:
T/T
Supply Ability:
300 ton per month
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Get A Quote
Specifications
Highlight Features
Refractory Materials Expandable Graphite Powder
,Expanded Graphite Expandable Graphite Powder
Carbon Content:
70%min
Moisture:
2%max
Ash:
30max
Expansionate:
70 – 130 G/cc
Type:
Natural
Color:
Black
Product Description
Expandable Graphite Powder Expanded Graphite 200-300times For Refractory Materials
Product
Expandable graphite is a synthesized intercalation compound of graphite that expands or exfoliates when heated. This material is manufactured by treating flake graphite with various intercalation reagents that migrate between the graphene layers in a graphite crystal and remain as stable species.
If exposed to a rapid increase in temperature, these intercalation compounds decompose into gaseous products, which results in high inter-graphene layer pressure. This pressure develops enough force to push apart graphite basal planes in the “c” axis direction. The result is an increase in the volume of the graphite of up to 300 times, a lowering of bulk density, and approximately a 10-fold increase in surface area.
If exposed to a rapid increase in temperature, these intercalation compounds decompose into gaseous products, which results in high inter-graphene layer pressure. This pressure develops enough force to push apart graphite basal planes in the “c” axis direction. The result is an increase in the volume of the graphite of up to 300 times, a lowering of bulk density, and approximately a 10-fold increase in surface area.
| Grade Name | Mesh | Expansion Ratio (cc/g) | Purity (%) |
Moisture (%) |
PH | Sulfur (ppm) |
Onset Temp (°C) |
Application |
| HS555 | +50 | 250:1 | 95-97 | <1 | 6-9 | * | 160-180 | PU foam, Bituman. |
| HS855 | +50 | 250:1 | 98-99 | <1 | 6-9 | * | 160-180 | PU foam, Bituman. |
| HS955 | +50 | 250:1 | 99-99.5 | <1 | 6-9 | * | 160-180 | PU foam, Bituman, for application require least instruments damage. |
| HS085 | +80 | 250:1 | 90-95 | <1 | 6-9 | * | 160-180 | PU foam, EPS foam, XPS foam, sealing strip. |
| HS585 | +80 | 250:1 | 95-97 | <1 | 6-9 | * | 160-180 | PU foam, EPS foam, XPS foam, sealing strip. |
| HS055 | +50 | 250:1 | 90-95 | <1 | 6-9 | * | 160-180 | PU foam, EPS foam, XPS foam, sealing strip. |
| HS988 | +80 | 180:1 | 99-99.5 | <1 | 6-9 | <1500 | * | Graphite foil, roll, gaskets. |
Application
- Graphene precursor.
- Inorganic source of carbon.
- Filler.
- Thermal additive.
- Fire retardant additive.
- Casting powders.
- Plastic additive.
- Rubber additive.
Tags:
Overall Rating
5.0
Based On Recent Reviews
Rating Snapshot
5
100%
4
0
3
0
2
0
1
0
All Reviews
J
Mar 12.2025
As a regular buyer of expandable graphite for fire-retardant coatings and sealing materials. Excellent batch-to-batch uniformity. Overall, this supplier offers high-value expandable graphite with strong technical support. We look forward to continued cooperation.
T
Mar 11.2025
The expansion volume is consistent, forming a strong, insulating char layer. It's highly effective and environmentally friendly compared to traditional options. Highly recommended for anyone in the fire safety materials industry.
A
Jan 13.2025
This is our first order of expandable graphite for R&D purposes. The product arrived well-packaged and dry. The technical data sheet provided was accurate. We tested the expansion ratio under high heat, and it matched the manufacturer's claim closely. The flake size distribution was good. Customer service was responsive to our pre-sale inquiries. Will order again for our larger batch production.
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