Qingdao Tennry Carbon Co., Ltd. specializes in custom graphite blocks of diverse sizes and material grades, featuring low ash content, superb high-temperature resistance, corrosion resistance, and stable thermal & electrical conductivity. Our workshop is equipped with advanced CNC machining tools and complete professional testing equipment to guarantee precise dimensional compliance. We tailor products fully to your unique demands, pairing excellent material performance with factory-direct competitive prices under integrity-focused business standards. We sincerely welcome all inquiries and look forward to long-term, professional win-win cooperation with global partners.
Isostatic graphite technical data
Index | Units | FSDK-4 | FSDK-6S | FSDK-7 | FSDK-8 | FSDK-9 | FSDW-7 | FSDW-8 |
Bulk density | ≥g/cm3 | 1.72 | 1.86 | 1.83 | 1.86 | 1.9 | 1.85 | 1.91 |
Electric resistivity | μΩ.m | 10-13 | 10-13 | 11-14 | 10-14 | 10-14 | 11-13 | 11-13 |
Compressive strength | Mpa | 65 | 100 | 110 | 120 | 125 | 115 | 135 |
Flexural strength | Mpa | 30 | 48 | 50 | 55 | 60 | 51 | 60 |
Shore hardness | 40 | 65 | 67 | 72 | 75 | 65 | 70 | |
Ash content/ purification | ppm | 500/50 | 500/50 | 500/50 | 500/50 | 500/50 | 500/50 | 500/50 |
Average granularity | μm | 25 | 12 | 8 | 6 | 2-4 | 8-10 | 8-10 |
Coefficient of thermal expansion | ×10-6/℃ | 5 | 4.2 | 3.8 | 4 | 3.9 | 5.6 | 5.85 |
Young’s modulus | Gpa | 9.2 | 11 | 11 | 12 | 12 | 11 | 12 |
Applications | >Vacuum furnace >Sintering | >Photovoltaic >Vacuum furnace >Melting gold crucible | >EDM | >EDM >Melting gold crucible | >EDM >Melting gold crucible | >EDM >Photovoltaic | >EDM >Photovoltaic |
Mold graphite technical data
Index | Units | FSM-1 | FSM-2 | FSMK-3 | FSMK-5 | FSMK-5S | FSMW-4 | FSMW-5 |
Bulk density | ≥g/cm3 | 1.6 | 1.7 | 1.68 | 1.8 | 1.85 | 1.75 | 1.85 |
Electric resistivity | μΩ.m | 8 | 7.5 | 9-13 | 8-10 | 8-10 | 8.5 | 8.5 |
Compressive strength | Mpa | 28 | 36 | 45 | 70 | 80 | 65 | 85 |
Flexural strength | Mpa | 14 | 18 | 20 | 35 | 40 | 38 | 46 |
Shore hardness | 25 | 30 | 35 | 48 | 55 | 42 | 48 | |
Ash content/ purification | ppm | 2000/- | 2000/- | 1000/50 | 1000/50 | 1000/50 | 1000/50 | 1000/50 |
Average granularity | μm | 2000,4000 | 800,2000 | 15-45 | 15-45 | 15-45 | 14-45 | 14-45 |
Coefficient of thermal expansion | ×10-6/℃ | 5.8 | 5.7 | 5.7 | 4.9 | 4.8 | 5.46 | 4.75 |
Young's modulus | Gpa | 7 | 8 | 8 | 9.5 | 10 | 9 | 11.8 |
This material retains stable structure and mechanical performance under ultra-high temperature, won’t soften or deform in long-time high-heat working environments.
It tolerates drastic sudden temperature rises and falls without cracking, adapts to frequent alternating hot-cold industrial operating cycles.
Features outstanding dual conductivity of heat and electricity, ensures uniform heat transfer and smooth current transmission for electrode & heat sink parts.
Possesses natural solid self-lubricating property, reduces friction and wear between contact surfaces without extra liquid lubricants at high temp.
Resists erosion from most acids, alkalis and molten metals, barely reacts with surrounding medium to maintain long service life.
Our graphite blocks integrate high temperature resistance, excellent thermal shock stability and dual thermal-electrical conductivity. The dense uniform structure avoids cracking under frequent cold-hot alternation, delivering stable heat transfer and smooth current conduction for metallurgical furnaces, EDM molds and conductive components. Natural self-lubricating property lowers equipment wear, while superior chemical corrosion resistance resists erosion by molten metal, acid and alkali to extend service cycle greatly.
Produced via precise batching, high-pressure molding and ultra-high temperature graphitization, our graphite blocks feature low porosity and high purity. Customizable density, grain size and size specifications match diverse industrial demands. Widely adopted in steel smelting, non-ferrous metal melting, battery conductive frames and high-temperature sintering kilns, they cut production costs and boost continuous running efficiency for heavy-duty thermal processing workshops.
Select fine-grain graphite blocks with strong thermal shock resistance for steel furnaces with frequent temperature swings. Medium-grain graphite fits constant-temperature sintering. High-temperature resistant substrate prevents cracking under long continuous heating.
High-purity high-conductivity graphite works for electrodes & EDM. High-density high-thermal-conductivity types suit heat sinks. Match resistivity and thermal conductivity data to guarantee uniform current and fast heat dissipation.
Choose graphite blocks with natural self-lubrication for sliding molds and wear liners. Its solid lubricating property eliminates extra oil lubrication, cutting friction loss and factory maintenance costs.
Pick graphite blocks with excellent chemical stability for smelting contacting molten metal or acid & alkali. It barely reacts with corrosive media, resisting erosion and greatly extending service life.
Shuangjing Village, Ligezhuang Town, Jiaozhou City, Qingdao City, Shandong Province, China
English
