API 5L X52 Line Rohr Stahl: Öl & Gas Pipeline Güte
API 5L / ISO 3183 · Published: 2026-05-25 · Updated: July 2026
API 5L X52 is a high-strength carbon steel grade for oil and gas transmission pipelines, with 360 MPa minimum yield strength (52 ksi, hence 'X52'). It is supplied as seamless or welded pipe with stringent controls on chemistry, mechanical...
API 5L X52 ist ein hoch-strength carbon steel grade für öl und gas transmission pipelines, mit 360 MPa minimum yield strength (52 ksi, hence 'X52'). Es ist supplied als seamless oder welded rohr mit stringent controls ein chemistry, mechanical properties, und non-destructive testing. Der controlled rolling oder normalizing process produces fine-grain microstructure wesentlich für fracture arrest in hoch-pressure gas pipelines. X52 welds mit cellulosic (E6010/E8010) oder niedrig-hydrogen (E7018/E8018) electrodes using qualified API 1104 procedures.
Quick Facts
| Kategorie | Kohlenstoffstahl |
| Norm | API 5L / ISO 3183 |
| Density | 7.85 g/cm³ |
| Yield Strength | 360 MPa (52 ksi) |
| Tensile Strength | 460 MPa (67 ksi) |
Global Equivalents & Cross-Reference
| Alternative Standard / Grade | Action |
|---|---|
| L360 | Compare |
| X52 | Compare |
| S355 | Compare |
| L360NB | Compare |
| StE360 | Compare |
Verwandt Materials
🧮 Material Weight Calculator
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Frequently Asked Questions
Was ist der difference zwischen X52 und X65 rohr?
X65 hat ein higher minimum yield strength (450 MPa vs 360 MPa), allowing thinner rohr walls für der gleich operating pressure—reducing material kosten und welding time. However, X65 requires mehr sophisticated steelmaking (thermo-mechanical controlled processing) und mehr careful field welding. X52 remains popular für unter-pressure lines, flowlines, und gathering systems wo der easier weldability outweighs der weight penalty.
References & International Standards
- ASTM International. Norm Specifications für Stahl & Metal Alloys. astm.org
- International Organization für Standardization (ISO). Metallic Materials — Cross-Referenz Database. iso.org
- American Iron und Stahl Institute (AISI). Stahl Güte Designations & Equivalents. steel.org
- European Committee für Standardization (CEN). EN Stahl Standards & Numbering System. cencenelec.eu