Heat Treatment
-
EN10210 specifies hot-finished structural hollow sections that may include both welded and seamless sections. These sections undergo heat treatment processes such as normalization or thermomechanical rolling to achieve desired mechanical properties.Resistant to dust and dirt
-
EN10219 is designated for cold-formed welded structural hollow sections, which do not require additional heat treatment post-fabrication. The cold working process influences the material's mechanical properties and dimensional precision.
Chemical Composition Differences
- EN10210 has stricter chemical composition requirements due to its focus on the strength and durability of steel. It places tighter limits on elements like sulfur and phosphorus, which can impact steel's strength and weldability.
- EN10219 has fewer chemical composition requirements, prioritizing the machinability and weldability of steel over its strength and durability, as it deals with cold-formed or unheated welded steel pipes for structural use.
| EN10210,EN10219 Permissible deviation of the product analysis from specified limits of the cast analysis give in Tables | ||||
| Element | Permissible maximum content in the cast analysis % by mass |
Permissible deviation of the product analysis from specified limits for the cast analysis % by mass |
||
| EN10210 | EN10219 | EN10210 | EN10219 | |
| C a | ≤0.20 >0.20 |
≤0.20 >0.20 |
+0.02 +0.03 |
+0.02 +0.03 |
| Si | ≤0.60 | ≤0.60 | ＋0.05 | ＋0.05 |
| Mn | non-alloy≤1.60 | non-alloy≤1.60 | ＋0.10 | ＋0.10 |
| fine grain≤1.70 | fine grain≤1.70 | - 0.05 +0.10 |
- 0.05 +0.10 |
|
| P | non-alloy≤0.040 | non-alloy≤0.040 | ＋0.010 | ＋0.010 |
| fine grain≤0.035 | fine grain≤0.035 | ＋0.005 | ＋0.005 | |
| S | non-alloy≤0.040 | non-alloy≤0.040 | ＋0.010 | ＋0.010 |
| fine grain≤0.030 | fine grain≤0.030 | ＋0.005 | 0.005 | |
| Nb | ≤0.060 | ≤0.050 | ＋0.010 | ＋0.010 |
| V | ≤0.20 | ≤0.20 | ＋0.02 | ＋0.02 |
| Ti | ≤0.03 | ≤0.050 | ＋0.01 | ＋0.01 |
| Cr | ≤0.03 | ≤0.03 | ＋0.05 | ＋0.05 |
| Ni | ≤0.80 | ≤0.80 | ＋0.05 | ＋0.05 |
| Mo | ≤0.10 | ≤0.20 | ＋0.03 | ＋0.03 |
| Cu | ≤0.35 0.35 |
≤0.35 0.35 |
+0.04 +0.07 |
+0.04 +0.07 |
| N | ≤0.025 | ≤0.025 | ＋0.002 | ＋0.002 |
| Al total | ≥0.020 | ≥0.020 | -0.005 | -0.005 |
| a For S235JRH in thickness ≤16mm,the permissible deviation ＝ 0.04%C,and for thicknesses >16mm and ≤40mm the permissible deviation＝0.05%C. | ||||
EN10219 steel pipes typically exhibit higher yield strength values than EN10210 steel pipes, making them more suitable for applications that require increased load-bearing capacity.
EN10210 steel pipes usually show higher tensile strength values than EN10219 steel pipes, which is advantageous when the pipes are subjected to high tensile loads or compression.
The impact performance of steel pipes is crucial, especially in applications where low temperatures and harsh environments are common. EN10210 pipes are renowned for their superior impact toughness, making them often preferred in industries that need to resist brittle fracture.
Applications
- EN10210 is more frequently used in structures that bear significant loads and need high-strength support, such as bridges, high-rise buildings, and heavy industrial applications.
- EN10219 has a broader range of applications in general engineering and structures across industrial, civil, and infrastructure sectors, where a balance between strength and cost-effectiveness is essential.
In summary, EN10210 and EN10219 steel pipes have different uses in various industrial applications. Understanding their main differences in terms of purpose, chemical composition, yield strength, tensile strength, and impact performance is crucial for choosing the most suitable steel pipe for a specific project or application.
