Characteristics:The products are mainly used to produce fasteners of class 8.8 ~ 10.9. Use of Products:10B28are mainly used to produce fasteners of class 8.8 ~10.9, It has of uniform-chemicalcomposition, low percentage of harmful elements, high puruty, slight decarburisation, good surface quality, good cold heading perfomence, low rigidity. They also has characteristics of high intensity and good hardenability after heat treatment.
Established a perfect mechanism for quality inspection, and specialized the management of the flow of product control. After many years’ endeavor, we have built an excellent image of “professionalism and concentration” within our trade. Our products have been sold in large quantities to US, European, Southeastern Asian, as well as Russian markets.
|
Grade |
Chemical composition % |
|
SAE Standard |
C |
Mn |
Si |
S |
P |
B |
Al |
|
10B18 |
0.16~0.23 |
0.60~0.90 |
0.10Max |
Max0.30 |
Max0.30 |
0.0008~0.003 |
Min0.020 |
|
10B21 |
0.18~0.23 |
0.60~0.90 |
0.10Max |
Max0.30 |
Max0.30 |
0.0008~0.003 |
Min0.020 |
|
10B28 |
0.26~0.32 |
0.70~1.00 |
0.40Max |
Max0.30 |
Max0.30 |
0.0008~0.003 |
Min0.020 |
|
10B30 |
0.28-0.34 |
0.70~1.00 |
0.10Max |
Max0.30 |
Max0.30 |
0.0008~0.003 |
Min0.020 |
|
10B33 |
0.29~0.38 |
0.70~1.00 |
0.15~0.35 |
Max0.35 |
Max0.30 |
0.0008~0.003 |
Min0.020 |
|
10B38 |
0.35~0.42 |
0.70~1.00 |
0.15~0.35 |
Max0.35 |
Max0.30 |
0.0008~0.003 |
Min0.020 |
