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

