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商品详情
瑞典伊萨ESAB焊条OK68.81 /E312-17不锈钢电焊条
OK Autrod 13.91瑞典伊萨耐磨焊丝OK Autrodur 56 GM堆焊焊丝盾构机刀盘耐磨焊丝MSG-6-GZ-C-60G耐磨合金焊丝
陕西西安骏焊专业销售瑞典伊萨进口铝镁焊丝 气保耐磨实芯药芯焊丝 不锈钢气保焊丝 镍基焊条镍基焊丝 低合金焊条焊丝 高强钢焊条焊丝 铜焊条焊丝 铸铁焊条焊丝 耐磨焊条焊丝等进口焊条焊丝
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OK 68.81 SMAW Type Rutile-acid OK 68.81 is a high-alloyed electrode which deposits a ferritic-austenitic duplex weld bl with approx. 40% ferrite. Resistant to stress corrosion and highly insensitive to dilution. Good scaling resistance up to 1150?C. OK 68.81 is used for joining dissimilar steels, steels with reduced weldability and buffer layers prior to hardfacing. Applications: rolls, forging dies, hot-work tools, dies for plastics and so on. Welding current, A DC+, AC OCV 60 V |
     
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| Classifications | Approvals | Typical all weld bl comb | Typical properties all weld bl | ||||||||||||||||||||||||||
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Redrying temperature, ?C 350 Redrying time, hours 2 Yield stress, MPa 610 Tensile strength, MPa 790 Elongation, % 22 Elongation, % 22 Ferrite content FN 50-80 Weld bl hardness, a w 220-240 HV Machinability Fair
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| Diameter, mm | 2,0 | 2,5 | 3,2 | 4,0 | 5,0 |
| Length, mm | 300 | 300 | 350 | 350 | 350 |
| Arc voltage, V | 22 | 24 | 25 | 26 | 28 |
| Welding current, A | 40-60 | 50-85 | 60-125 | 80-175 | 150-240 |
| N. Kg weld bl/kg electrodes | 0,64 | 0,64 | 0,62 | 0,62 | 0,65 |
| B. No. of electrodes/kg weld bl | 123,0 | 78,0 | 42,0 | 26,0 | 16,5 |
| H. Kg weld bl/hour arc time | 0,7 | 0,9 | 1,3 | 2,0 | 3,2 |
| T. Burn-off time, secs/electrode | 41 | 48 | 65 | 66 | 68 |
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