鹽城市蘇北龍金屬磨料有限公司
電 話:0515-83752570 137-7028-2341
傳 真:0514-82932644
郵 箱:subeilong@126.com
網 址:qfmq.com.cn
地址:江蘇省鹽城市大豐區西團鎮大龍工業區鑫磊路2號(寶豐鋼廠向西800米)
合金鑄鋼丸
名 稱 | 鑄鋼丸 | |
化學成分 | 碳(C) | 0.90~1.10% |
錳(Mn) | 0.60~1.20% | |
硅(Si) | 0.60~1.00% | |
硫(S) | ≤0.04% | |
磷(P) | ≤0.04% | |
平均硬度
(500g荷載下測定)
|
42~45HRC | |
硬度偏差 | 最大偏差范圍為±3.0HRC | |
金相組織 | 均勻的回火馬氏體或回火屈氏體+彌散分布碳化物 | |
最小密度
(酒精置換法測定)
|
7.4g/cm3 |
蘇北龍鑄鋼丸粒度分布:
篩孔規格 |
相應篩網上累積殘留率% |
||||||||||||
目數 |
孔徑mm |
SS-2.5 |
SS-2.0 |
SS-1.7 |
SS-1.4 |
SS-1.2 |
SS-1.0 |
SS-0.8 |
SS-0.6 |
SS-0.5 |
SS-0.4 |
SS-0.3 |
SS-0.2 |
7 |
2.80 |
all pass |
|
|
|
|
|
|
|
|
|
|
|
8 |
2.36 |
|
all pass |
|
|
|
|
|
|
|
|
|
|
10 |
2.00 |
≥85% |
|
all pass |
all pass |
|
|
|
|
|
|
|
|
12 |
1.70 |
≥97% |
≥85% |
|
≤5% |
all pass |
|
|
|
|
|
|
|
14 |
1.40 |
|
≥97% |
≥85% |
|
≤5% |
all pass |
|
|
|
|
|
|
16 |
1.18 |
|
|
≥97% |
≥85% |
|
≤5% |
all pass |
|
|
|
|
|
18 |
1.00 |
|
|
|
≥96% |
≥85% |
|
≤5% |
all pass |
|
|
|
|
20 |
0.850 |
|
|
|
|
≥96% |
≥85% |
|
≤10% |
all pass |
|
|
|
25 |
0.710 |
|
|
|
|
|
≥96% |
≥85% |
|
≤10% |
all pass |
|
|
30 |
0.600 |
|
|
|
|
|
|
≥96% |
≥85% |
|
≤10% |
all pass |
|
35 |
0.500 |
|
|
|
|
|
|
|
≥97% |
≥85% |
|
≤10% |
|
40 |
0.425 |
|
|
|
|
|
|
|
|
≥97% |
≥85% |
|
all pass |
45 |
0.355 |
|
|
|
|
|
|
|
|
|
≥97% |
≥80% |
≤10% |
50 |
0.300 |
|
|
|
|
|
|
|
|
|
|
≥90% |
|
80 |
0.180 |
|
|
|
|
|
|
|
|
|
|
|
≥80% |
115 |
0.125 |
|
|
|
|
|
|
|
|
|
|
|
≥90% |
120 |
0.075 |
|
|
|
|
|
|
|
|
|
|
|
|
325 |
0.045 |
|
|
|
|
|
|
|
|
|
|
|
|
SAE |
S-780 |
S-660 |
S-550 |
S-460 |
S-390 |
S-330 |
S-280 |
S-230 |
S-170 |
S-130 |
S-110 |
S-70 |