In the year 2002, the hot rolled section steel of high quality carbon structure steel won the title of Qingdao Municipal Famous Brand Products.
High Quality and Common Carbon Steel Hot Rolled Round Bar
| Name | Grade | Diameter（mm） | Standard | Application | Status on Delivery | Remarks |
| High Quality Carbon Structure Steel | 45 | ∮14-50 | GB/T699-1999
GB/T702-2008 |
Mainly utilized in the cold, hot cutting process for shaft products, as well as in the construction engineering structure. | Hot Rolled | |
| 50 | ||||||
| 55 | ||||||
| Common Carbon Structure Steel | Q195 | ∮10-45 | GB/T700 –2006 | Construction and Machine Manufacture | ||
| Q215 | ||||||
| Q235 |
In the year 2002, the hot rolled section steel of high quality carbon structure steel won the title of Qingdao Municipal Famous Brand Products.
| Grade | Chemical Contents % | ||||
| C | Si | Mn | P | S | |
| 45 | 0.42~0.50 | 0.17~0.37 | 0.50~0.80 | ≤0.035 | ≤0.035 |
| 50 | 0.47~0.55 | 0.17~0.37 | 0.50~0.80 | ≤0.035 | ≤0.035 |
| 55 | 0.52~0.60 | 0.17~0.37 | 0.50~0.80 | ≤0.035 | ≤0.035 |