产品简介 PRODUCT INTRODUCTION
德国标准GERMANY STANDARDS
管道、容器、设备结构用管
STEEL PIPE FOR PIPELINE、VESSEL AND EQUIPMENT STRUCTURE
标准 Standard
DIN1629…………德国工业标准Germany Industry Standard
用途 Application：
适用于制造管道、容器、设备、管件及钢结构。
It is used for manufacturing pipeline , vessel , equipment , pipe fittings and steel structure.
主要生产钢管牌号 Main Steel Tube Grade:
St37.0 St44.0 St52.0
化学成分、机械性能Chemical composition ＆ Mechanical Properties
标准
Standard | 牌号
Grade | 化学成分Chemical Composition（%） | 机械性能Mechanical Properties |
| C | Si | Mn | P | S | Cr | 抗拉强度（Mpa）
Tensile Strength | 屈服强度（Mpa）
Yield Strength | 伸长率（%）
Elongation |
| DIN1629 | St37.0 | ≤0.17 | _ | _ | ≤0.04 | ≤0.04 | _ | 350~480 | ≥235 | ≥25 |
| St44.0 | ≤0.21 | _ | _ | ≤0.04 | ≤0.04 | _ | 420~550 | ≥255 | ≥21 |
| St52.0 | ≤0.22 | ≤0.55 | ≤1.70 | ≤0.04 | ≤0.04 | _ | 550~650 | ≥270 | ≥21 |
