Complaint
Graphite Electrodes are a high-temperature resistant graphite conductive refractory material used in the metallurgical industry. Graphite Electrodes are made of petroleum coke, bituminous coke as aggregates, coal tar pitch as binders, after raw material calcination, crushing and milling, batching, kneading, moulding, roasting, impregnation, graphitization and machining, which are also known as artificial graphite electrodes in order to distinguish from natural graphite electrodes made of natural graphite.
> Be careful when transporting and pilling electrodes with forklift and avoid of collision. One layer of goods at a time; notice the balance and alignment and avoid falling or breakage.
> When loading and unloading with forklift, wire rope must be used and steel wrapping tape cannot be employed directly to fetch electrodes.
> Electrode should be stored in clean and dry place. When pilling up outdoors, it should be covered with rain-proof tarpaulin and the number of piling layers ought not to exceed four.
> When using electrodes, special tools should be employed to cut the steel wrapping tape, and crane should not be adopted to avoid bursting.
> Steel-wire ball, metallic brush or emery cloth is not allowed for cleaning the electrode thread, but compressed air free of oil and water is available.
> Use revolved resilient hanger and put soft truss pad under the electrode joint to avoid breakage of the thread.
> Lift the electrode to the furnace by using a hoister with resilient hangers, and find out the center and move slowly downwards, screw and tight with a hoop.
> If the two poles of the two electrodes are untouched or touched in overpressure, this may cause bad effect.
> In order to avoid electrode breakage put the large materials in lower part and small materials in the upper part.
| RP | HP | UHP |
| Electrode: Bulk Density≥ 1.56g/cm3 Specific Resistivity≤ 8.5μm Bending Strength≥ 10.0MPa Elastic Modulus≤ 9.3GPa Thermal Expansion Coefficient≤ 2.7x10 -6/°C Ash≤ 0.5% Nipple: Bulk Density≥ 1.68g/cm3 Specific Resistivity≤ 7.0μm Bending Strength≥ 14.0MPa Elastic Modulus≤ 13.7GPa Thermal Expansion Coefficient≤ 2.5 x10 -6/°C Ash≤ 0.5% | Electrode: Bulk Density≥ 1.65g/cm3 Specific Resistivity≤ 6.5μm Bending Strength≥ 12.0MPa Elastic Modulus≤ 10.0GPa Thermal Expansion Coefficient≤ 2.2x10 -6/°C Ash≤ 0.3% Nipple: Bulk Density≥ 1.74g/cm3 Specific Resistivity≤ 5.5μm Bending Strength≥ 16.0MPa Elastic Modulus≤ 14.0GPa Thermal Expansion Coefficient≤ 2.0 x10 -6/°C Ash≤ 0.3% | Electrode: Bulk Density≥ 1.68g/cm3 Specific Resistivity≤ 5.8μm Bending Strength≥ 16.0MPa Elastic Modulus≤ 14.0GPa Thermal Expansion Coefficient≤ 1.9x10 -6/°C Ash≤ 0.2% Nipple: Bulk Density≥ 1.76g/cm3 Specific Resistivity≤ 4.5μm Bending Strength≥ 18.0MPa Elastic Modulus≤ 16.0GPa Thermal Expansion Coefficient≤ 1.4 x10 -6/°C Ash≤ 0.2% |
| Actual diameters | Actual lengths | ||||||
| Mm | Mm | MAX | MIN | Rough spot | Length | Tolerance | Shot Ruler size |
| 200 | 8 | 204 | 201 | 198 | 1600 | ±100 | -275 |
| 250 | 10 | 256 | 252 | 248 | 1600 1800 | ||
| 300 | 12 | 307 | 303 | 299 | |||
| 350 | 14 | 357 | 353 | 347 | |||
| 400 | 16 | 409 | 404 | 400 | 1600 1800 2000 | ||
| 450 | 18 | 460 | 455 | 451 | |||
| 500 | 20 | 511 | 506 | 502 | |||
| 600 | 24 | 613 | 607 | 604 | |||
| 780 | 31.2 | 782 | 776 | 774 | 2000 2200 2400 | ±100 | -400 |
| 800 | 32 | 802 | 796 | 794 | |||
| 870 | 34.8 | 872 | 866 | 862 | |||
| 900 | 36 | 902 | 896 | 892 | |||
| 920 | 36.8 | 922 | 916 | 912 | |||
| 960 | 38.4 | 962 | 956 | 952 | |||
| 1020 | 40.8 | 1022 | 1016 | 1012 | 2200 2600 2800 | ||
| 1060 | 42.4 | 1062 | 1056 | 1052 | |||
| 1100 | 44 | 1102 | 1092 | 1092 | |||
| 1146 | 45.8 | 1148 | 1140 | 1138 | |||
| 1197 | 47.9 | 1199 | 1191 | 1189 | |||
| 1250 | 50 | 1252 | 1244 | 1242 | |||
| 1272 | 50.9 | 1274 | 1266 | 1264 | |||
| 1305 | 54.4 | 1307 | 1299 | 1297 | |||
| 1321 | 52.8 | 1323 | 1315 | 1313 | |||
| 1400 | 56 | 1402 | 1394 | 1392 | |||
Qingdao TTWY Manufacturing Co.,Ltd is a company specialized in producing the graphite products and casting equipment, especially in RP HP UHP graphite electrode and fabricating foundry ladle (such as teapot type ladle, insulation ladle and spheroidinzing ladle). It is located in Qingdao,a beautiful harbor city,which is convenient in transportation.
With high quality,reasonable price and attentive service the products produced by TTWY have wined trust from clients at home and aboard.
Q: What information should I let you know if i want to get a quotation?
A: The required material dimension (diameter*length; if possible, please kindly supply us drawings).
If it is possible, please also provide the application of products, we will recommend the most suitable products with details for confirmation.
Q: How can you control your quality?
A: For each production processing, We have a complete QC system for the chemical composition and physical properties. After production, all the goods will be tested, and the quality certificate will be shipped along with goods.
Q: What is your lead time?
A: It usually needs about 15- 20 days after receiving the PO.
Q: What are your payment terms?
A: We can accept a 30% deposit, 70% balance to be against the BL copy or by LC, or other payment terms. (according to your order value)
Q: Can we visit your company?
A: Yes, for sure, It's my pleasure to visit Our company.
Q: What is the shipping cost?
A: The shipping cost is determined by the destination port, weight, packing size, total CBM of the products, we will try best to get the most reasonable shipping cost from the forwarders or express couriers to help you save more money.
