很多接觸鋼球或五金的朋友，對不銹鋼產品的特性多多少少都有了解。而不銹鋼球的力學性能和化學性能主要是有材料本身的化學成分來決定的，比如，含Ni和Gr的金屬一般具有防銹防蝕的特性；有的特意多加一點P元素，金屬的硬度會增加， 脆性相對也會增大，從而影響產品的使用壽命。所以，一般S、P一般是作為有害物質列出，一般不能超過0.03%和0.045%。以下為制造精密鋼球所以不銹鋼材質，化學成分要求，僅作參考。如您有更好的建議和意見，敬請聯系我們乾潤鋼球銷售部王麗薩女士。謝謝！
|
AISI Number
|
C%
|
Si%
|
Mn%
|
Cr%
|
Ni%
|
Mo%
|
P%
|
S%
|
Property
|
|
AISI 304
|
0.07
Max
|
1.00
Max
|
2.00
Max
|
17.0~
19.0
|
8.0~
10.5
|
|
0.045
Max
|
0.03
Max
|
Slightly magnetic ,Flat surface HRC 25min.
Better corrosion resistance than 4 series stainless steel
|
|
AISI 316
|
0.07
Max
|
1.00
Max
|
2.00
Max
|
16.5~
18.5
|
10.5~
13.5
|
2.00~
2.50
|
0.045
Max
|
0.03
Max
|
Slightly magnetic ,Flat surface HRC 25min.
Better corrosion resistance than SS304
specially against Sulfuric acid and ink/bleach/nitric acid
|
|
AISI 420
|
0.07~
0.25
|
1.00
Max
|
1.00
Max
|
12.0~
14.0
|
|
|
0.045
Max
|
0.03
Max
|
Magnetic,martensite steel.
flat surface HRC 50min,
better corrosion resistant than SS440
|
|
AISI 430
|
0.08
Max
|
1.00
Max
|
1.00
Max
|
15.5~
17.5
|
|
|
0.045
Max
|
0.03
Max
|
Ferritic stainless steel,better
corrosion resistant than 3 series
at higher temperature
Flat surface HRB 85 min
|
|
AISI 440
|
0.95~
1.20
|
1.00
Max
|
1.00
Max
|
16.0~
18.0
|
|
|
0.045
Max
|
0.02
Max
|
Martensite,fair corrosion to water,
alcohol,oil and food product,
flat surface HRC 58 min
|
|
