API 5L X65 steel pipe is a high-strength pipeline steel produced by microalloyed controlled rolling and cooling (TMCP) process. In its name, "X65" represents a minimum yield strength of 65ksi (approximately 448MPa). Its excellent mechanical properties and corrosion resistance enable it to maintain stable performance in various harsh environments, making it an indispensable material in many industrial fields.
X65 Seamless Pipe Characteristics:
Product Standard: API SPEC 5L Pipeline Pipe
Product Specifications: Outer Diameter: 21.3~1026mm, Wall Thickness: 2.0~120mm
The product shall comply with the requirements of TSG D7002 Pressure Piping Component Type Test Rules.
Production Method: Hot rolling, cold drawing, hot expansion. Delivery Condition: Heat treated.
API 5LX65 Seamless Steel Pipe Chemical Composition: Carbon: ≤0.16%, Silicon: ≤0.45%, Manganese: ≤1.65%, Phosphorus: ≤0.020%, Sulfur: ≤0.003%, Vanadium: 0.09%, Niobium: 0.05%, Titanium: 0.06%
Mechanical Properties: Yield Strength: 450MPa~600MPa, Tensile Strength: ≥535MPa~760MPa, Yield Ratio ≤0.93.
Application Areas
- Oil and Gas Transportation: Long-distance, high-pressure natural gas pipelines (such as the West-East Gas Pipeline Project), deep-sea oil and gas field gathering and transportation pipelines
- Marine Engineering: Subsea pipelines, oil platform risers, resistant to seawater corrosion and high hydrostatic pressure
- Chemicals and Energy: LNG storage tank pipelines, high-pressure hydrogen transportation pipelines
- Special Environments: Energy infrastructure in harsh climate regions such as polar regions and deserts
