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Third-and domestic and foreign steel mills to establish long-term friendly cooperative partnership: Japan's Hitachi Metals' Hitachi H1TACH1 special steel, Daido Steel Great DA1DO Special Steel, Japan SUS series stainless steel, Sweden UDDEHOLM one-hundred ASSAB tool steel, the German Sa Site special steel, Austria Bluff BOHLER tool steel, the United States, Fen cola FKL special steel and ALCOA" Aluminum, the Japanese high-cycle KOSHUHI special Steel, the German Sa Site special steel, special steel Austria Bluff and other foreign tool steel. Baoshan Iron and Steel Co., Ltd. and China simultaneously, Fushun Fushun Special Steel Co., Ltd., Changcheng Special Steel Co., Ltd. Wuyang Iron and Steel in the long-term cooperation.
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 2024t3
2024T351 合金特性高强力合金。溶体化热处理后,在常温自然进效。即所谓之超杜拉铝。用途航空机及其他构造物之应用力材化学成分 (%)
Si Fe Cu Mn Mg Cr Zn 其它元素 各計
0.04 0.5 3.8-4.9 0.3-0.9 1.2-1.8 0.1 0.25 0.05 0.15
物理特性
比重 2.77 g/cm3
弹性率 7.5 kg/mm2x103
刚性率 2.9 kg/mm2x103
溶融温度范围 500-640°C
比热 (0-100°C) 0.22 cal/g°C
线膨胀率 (20-100°C) 0.0000232
热传导率 (25°C) 0.29 cal/am.s.°C
比电气阻 (20°C) 0.057 mm2/m
等容量导电率 (20°C) 30%LACS
机械性质
材质 0.2%降伏强度 最高引张强度 伸长率50% 勃氏硬度 最高剪断剪度 疲劳强度
kg/mm2 kg/mm2 t1.6mm d12.7mm kg/mm2 kg/mm2 kg/mm2
0 8.0 19.0 20 22 47 12.5 9.0
T351,T4 33.0 * 48.0 20 19 120 29.0 14.0
*材厚19.05mm以上之制材之强度比这数值大15-25%
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