Qingdao Hensen Graphite Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 300 ton per month |
| Delivery Time | 30 working days |
| Packaging Details | Small bag into big bag total 20 tons for 20' feet container |
| Carbon content | 98%min |
| Ash | 2%max |
| Moi | 0.5%max |
| PH | 6-9 |
| Size | 50mesh :80mesh: 100mesh：200mesh |
| Expansion ratio | 250ml/g min |
| Advantage | preservative/Electrical and thermal conductivity, etc. |
| Benefit | Non-toxic, without any carcinogens, no harm to the environment |
| Brand Name | Hensen |
| Model Number | 9850250 |
| Place of Origin | QINGDAO |
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Product Specification
| Payment Terms | T/T | Supply Ability | 300 ton per month |
| Delivery Time | 30 working days | Packaging Details | Small bag into big bag total 20 tons for 20' feet container |
| Carbon content | 98%min | Ash | 2%max |
| Moi | 0.5%max | PH | 6-9 |
| Size | 50mesh :80mesh: 100mesh：200mesh | Expansion ratio | 250ml/g min |
| Advantage | preservative/Electrical and thermal conductivity, etc. | Benefit | Non-toxic, without any carcinogens, no harm to the environment |
| Brand Name | Hensen | Model Number | 9850250 |
| Place of Origin | QINGDAO | ||
| High Light | 0.5% Moisture Expandable Graphite ，50Mesh Expandable Graphite Powder ，Conductive Additive Expandable Graphite Powder | ||
Expandable graphite is a synthesized intercalation compound of graphite that expands or exfoliates when heated. Once heated, it results an increase in the volume of up to 400 times, a lowering of bulk density, and approximately a 10-fold increase in surface area. Then it’s compressed into a highly cohesive flexible sheet.
Another principal application is as a flame retardant. As a result of the heat of a fire the graphite expands and creates an intumescent layer on the surface of the material. This retards the spread of fire and minimizes one of the most harmful effects of combustion: the creation of toxic gases and fumes.
Typical Grades
| Grade Name | Mesh | Expansion Ratio 1 (cc/g) | Purity(%) | Moisture(%) | PH | Sulfur(ppm) | Onset Temp(C) |
| HS 555 | +50 | 250:1 | 95-97 | <1 | 6-9 | ** | 160-180 |
| HS 855 | +50 | 250:1 | 98-99 | <1 | 6-9 | ** | 160-180 |
| HS 955 | +50 | 250:1 | 99-99.5 | <1 | 6-9 | ** | 160-180 |
| HS 988 | +80 | 180:1 | 99-99.5 | <1 | 6-9 | <1500 | ** |
| HS 980HP | +80 | 200:1 | 99.5-99.8 | <1 | 6-9 | <1500 | ** |
| HS 611 | -100 | 100:1 | 96-98 | <1 | 6-9 | ** | 160-180 |
| HS 223 | -200 | 30:1 | 92-95 | <1 | 6-9 | ** | 160-180 |
| HS 5HE | +50 | 350:1 | 95-97 | <1 | 6-9 | ** | 160-180 |
Date Sheet
| Product Name | Expandable Graphite Powder |
| Carbon Content | 98%min |
| Ash | 2%max |
| Moi | 0.5%max |
| PH | 3-9 |
| Size | 80%mesh Min |
| Expansion Ratio | 250ml/g min |
| Advantage | Preservative/Electrical And Thermal Conductivity, Etc. |
| Benefit | Non-toxic, without any carcinogens, no harm to the environment |
Our factory
Benefits of expandable graphite as flame retardant
1.Forms an intumescence layer with Thermal Radiation Shielding,with superior Heat Diffusion.
2.Stops or slows the spread of fire and toxic gases.
3.Easy to apply ,cost Effective,satisfied performance with low adding levels .
4.Non-toxic ,non-halogenated fire -stop additive.
5.Neutral surface PH makes compatible with any catalyst system.
Company Details
Business Type:
Manufacturer,Seller
Year Established:
1985
Total Annual:
44850000-74750000
Employee Number:
100~300
Ecer Certification：
Verified Supplier
Since 1985, Hensen Graphite has been proudly serving customers around the globe. Before setting up his own company, Mr. Peizhai Mo, the founder and owner of Hensen Graphite, has been working at Nanshu Graphite Mine, which was the most famous and important state owned graphite company in China. ... Since 1985, Hensen Graphite has been proudly serving customers around the globe. Before setting up his own company, Mr. Peizhai Mo, the founder and owner of Hensen Graphite, has been working at Nanshu Graphite Mine, which was the most famous and important state owned graphite company in China. ...
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