鋼丸技術(shù)指標(biāo)technical specification for steel shot
項(xiàng)目item
|
國(guó)家標(biāo)準(zhǔn)鋼丸national standard steel shot
|
高質(zhì)量鋼丸high quality steel shot
|
化
學(xué)
成
份
%
Chemical composition
|
carbon碳C
|
0.85-1.20
|
0.10-0.20
|
silicon硅Si
|
0.40-1.20
|
0.10-0.35
|
manganese錳Mn
|
0.60-1.20
|
0.35-1.50
|
sulfur硫S
|
<0.05
|
<0.05
|
phosphorus磷P
|
<0.05
|
<0.05
|
硬度hardness
|
鋼丸steel shot
|
HRC40-50
HRC55-62
|
HRC42-48
HRC48-54
|
密度density
|
鋼丸steel shot
|
≥7.20 g/cm3
|
7.4g/cm3
|
金相組織metallographic structure
|
回火馬氏體或屈氏體
tempered martensite or troostite
|
回火馬氏體+貝氏體 復(fù)相組織tempered martensite + bainite
complex phase structure
|
外觀appearance
|
圓球形 rounded
hollow grain空心顆粒﹤10%
crack 裂紋顆粒<15%
|
圓球形 rounded
hollow grain空心顆粒﹤5%
crack裂紋顆粒<10%
|
鋼丸粒度分布表 steel shot grain distribution
篩網(wǎng)號(hào)sieve designation
|
英寸
inch
|
篩網(wǎng)
孔徑
sieve opening
|
SAE J444 鋼丸 steel shot
|
S930
|
S780
|
S660
|
S550
|
S460
|
S390
|
S330
|
S280
|
S230
|
S170
|
S110
|
S70
|
6
|
0.132
|
3.35
|
All Pass
|
|
|
|
|
|
|
|
|
|
|
|
7
|
0.111
|
2.80
|
|
All Pass
|
|
|
|
|
|
|
|
|
|
|
8
|
0.0937
|
2.36
|
≥90%
|
|
All Pass
|
|
|
|
|
|
|
|
|
|
10
|
0.0787
|
2.00
|
≥97%
|
≥85%
|
|
All Pass
|
All Pass
|
|
|
|
|
|
|
|
12
|
0.0661
|
1.70
|
|
≥97%
|
≥85%
|
|
≤5%
|
All Pass
|
|
|
|
|
|
|
14
|
0.0555
|
1.40
|
|
|
≥97%
|
≥85%
|
|
≤5%
|
All Pass
|
|
|
|
|
|
16
|
0.0469
|
1.18
|
|
|
|
≥97%
|
≥85%
|
|
≤5%
|
All Pass
|
|
|
|
|
18
|
0.0394
|
1.00
|
|
|
|
|
≥96%
|
≥85%
|
|
≤5%
|
All Pass
|
|
|
|
20
|
0.0331
|
0.850
|
|
|
|
|
|
≥96%
|
≥85%
|
|
≤10%
|
All Pass
|
|
|
25
|
0.0280
|
0.710
|
|
|
|
|
|
|
≥96%
|
≥85%
|
|
≤10%
|
|
|
30
|
0.0232
|
0.600
|
|
|
|
|
|
|
|
≥96%
|
≥85%
|
|
All Pass
|
|
35
|
0.0197
|
0.500
|
|
|
|
|
|
|
|
|
≥97%
|
|
≤10%
|
|
40
|
0.0165
|
0.425
|
|
|
|
|
|
|
|
|
|
≥85%
|
|
All Pass
|
45
|
0.0138
|
0.355
|
|
|
|
|
|
|
|
|
|
≥97%
|
|
≤10%
|
50
|
0.0117
|
0.300
|
|
|
|
|
|
|
|
|
|
|
≥80%
|
|
80
|
0.007
|
0.180
|
|
|
|
|
|
|
|
|
|
|
≥90%
|
≥80%
|
120
|
0.0049
|
0.125
|
|
|
|
|
|
|
|
|
|
|
|
≥90%
|
200
|
0.0029
|
0.075
|
|
|
|
|
|
|
|
|
|
|
|
|
GB
|
2.8
|
2.5
|
2.0
|
1.7
|
1.4
|
1.2
|
1.0
|
0.8
|
0.6
|
0.4
|
0.3
|
0.2
|
包裝形式
根據(jù)客戶的使用情況和存儲(chǔ)需要,圣世久浩可以提供不同種類的包裝,達(dá)到充分便利于客戶的目的。
1) 1噸/木箱包裝(內(nèi)含40個(gè)25公斤塑料桶)
2) 1噸/大編織袋包裝(內(nèi)含40個(gè)25公斤牛皮紙袋)