优质碳素结构钢2002年度青钢牌热轧型钢获青岛市名牌产品称号。In the year 2002, the hot rolled section steel of high quality carbon structure steel won the title of Qingdao Municipal Famous Brand Products.
优质、普通碳素结构钢热轧圆钢
| 产品名称Name | 牌号Grade | 规格（mm）Diameter | 执行标准Standard | 用途Application | 交货状态Status on Delivery | 备注Remarks |
| 优质碳素结构钢High Quality Carbon Structure Steel | 45 | ∮14-50 | GB/T699-1999
GB/T702-2008 |
主要用于轴类的冷、热切削加工，同时也用于建筑工程结构中。Mainly utilized in the cold, hot cutting process for shaft products, as well as in the construction engineering structure. | 热轧Hot Rolled | |
| 50 | ||||||
| 55 | ||||||
| 普通碳素结构钢Common Carbon Structure Steel | Q195 | ∮10-45 | GB/T700 –2006 | 用于机械制造行业等结构用钢Construction and Machine Manufacture | ||
| Q215 | ||||||
| Q235 |
优质碳素结构钢2002年度青钢牌热轧型钢获青岛市名牌产品称号。In the year 2002, the hot rolled section steel of high quality carbon structure steel won the title of Qingdao Municipal Famous Brand Products.
| 牌号Grade | 化学成分， 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 |