API 5L X52 X56 X60 PSL1 PSL2 Linepipe Seamless Steel Tube
API 5L Steel Line pipe for oil & gas
As a professional steel line pipe supplier, we keep more than 10000+ tons seamless steel pipe stock in warehouse with different size and steel grade
all smls pipe from famous and big mill, like TPCO,BAOSTEEL......etc
All pipe will delivery with original Mill Test Certificate
Chemical Composition | |||
The chemical composition controls the weldability and mechanical properties of the pipes. For PSL1 grade materials: | |||
Element | X52 | X56 | X60 |
Carbon (C) max% | 0.28 | 0.28 | 0.28 -2 |
Manganese (Mn) max% | 1.4 | 1.4 | 1.40 -2 |
Phosphorus (P) max% | 0.03 | 0.03 | 0.030 -2 |
Sulfur (S) max% | 0.03 | 0.03 | 0.030 -2 |
For PSL2 grades, stricter chemical requirements apply with lower carbon content (max 0.24%) and tighter controls on phosphorus and sulfur | |||
Mechanical Properties Comparison |
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Understanding the mechanical properties is crucial for foreign trade as different projects require specific strength characteristics. Here's a comprehensive comparison of the three grades: | |||||||
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Grade | Yield Strength | Yield Strength | Tensile Strength | Tensile Strength | Elongation (%) |
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X52 | 52 | 360 | 66 | 460 | 21 |
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X56 | 56 | 390 | 71 | 490 | 19 |
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X60 | 60 | 415 | 75 | 520 | 19 |
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Manufacturing Processes and Size Range | ||
API 5L X52, X56, and X60 pipes can be manufactured through various processes: | ||
Manufacturing Method | Typical Size Range | Applications |
Seamless (SMLS) | 1/8" to 36" (17-914mm OD) | High-pressure, critical service |
ERW (Electric Resistance Welded) | 14" to 24" OD | General transmission lines |
LSAW (Longitudinal Submerged Arc Welded) | 18" to 56" (457-1422mm OD) | Large diameter, high-pressure |
SSAW (Spiral Submerged Arc Welded) | 8" to 120" OD | Large diameter, lower pressure |
