

|
SAE
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用途
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G-12
G-14
G-16
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清理大、中型铸钢、铸铁、锻造品、钢材、钢板、橡胶粘着前处理等
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G-18
G-25
G-40
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石料切割,研磨加工,橡胶粘着前处理,钢板、集装箱,船体钢板涂装前处理,喷洗中、小型铸钢、铸铁、锻造品等。
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G-50
G-80
G-120
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钢丝、扳手、钢管之除锈,镀前处理,精密铸造品(如高尔夫球头)之喷洗
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名 称
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铸钢砂
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化学成分
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碳(C)
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0.70-1.20%
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锰(Mn)
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0.35-1.20%
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硅(Si)
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0.40-1.20%
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硫(S)
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≤0.05%
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磷(P)
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≤0.05%
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平均硬度(500g荷载下测定)
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GP钢砂:42-50HRC (399-509HV)
GL钢砂:56-60HRC (620-713HV)
GH钢砂:63-66HRC (795-889HV)
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硬度偏差
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最大偏差范围为±3.0HRC或±40HV
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金相组织
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均匀的回火马氏体或回火屈氏体+弥散分布碳化物
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最小密度(酒精置换法测定)
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7.4g/cm3
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目数
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mm
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铸钢砂规格
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|||||||||
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2.5
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2.0
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1.7
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1.4
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1.2
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1.0
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0.7
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0.4
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0.3
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0.2
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||
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7
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2.80
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all pass
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8
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2.36
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all pass
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10
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2.00
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80%min
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all pass
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12
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1.70
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90%min
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80%min
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all pass
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13
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1.40
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90%min
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80%min
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all pass
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16
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1.18
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90%min
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75%min
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all pass
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18
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1.00
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85%min
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75%min
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all pass
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20
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0.850
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25
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0.710
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85%min
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70%min
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all pass
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30
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0.600
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35
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0.500
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80%min
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40
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0.425
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70%min
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all pass
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45
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0.355
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50
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0.300
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80%min
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65%min
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all pass
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80
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0.180
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|
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75%min
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65%min
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120
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0.125
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75%min
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60%min
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200
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0.075
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70%min
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|
325
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0.045
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SAE
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G-10
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G-12
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G-14
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G-16
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G-18
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G-25
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G-40
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G-50
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G-80
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G-120
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