API 5L X52 Welded Pipe - Straight Seam
Product description
API 5L X52 line pipe can be processed using various mature welding processes, including straight seam submerged arc welding (LSAW), spiral submerged arc welding (SSAW), and high-frequency resistance welding (ERW). In terms of material and manufacturing costs, X52 welded pipe offers significant economic advantages compared to higher-strength steel pipes such as X60 and X70. Its design is relatively simple, and its production process requirements are more lenient, making it suitable for most medium- and low-pressure oil and gas transportation scenarios. Therefore, API 5L X52 welded pipe has become a key material in modern industrial energy transmission systems, with applications spanning the entire industry chain, from upstream extraction and main pipeline transportation to downstream distribution.
Chemical Composition Table
Grade X52-PSL1 Welded Pipe Chemical Element Composition (%)
| Composition | C | Mn | P | S | Cr | Ni | Cu | Mo | B | More | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Weld pipe | Min | - | - | - | - | - | - | - | - | - | |
| Max | 0.26 | 1.4 | 0.03 | 0.03 | 0.5 | 0.5 | 0.5 | 0.15 | 0.001 |
Grade X52Q-PSL2 Welded Pipe Chemical Element Composition (%)
| Composition | C | Si | Mn | P | S | Cr | Ni | Cu | Mo | Ti | V | Nb | B | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weld pipe | Min | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Max | 0.18 | 0.45 | 1.5 | 0.025 | 0.015 | 0.3 | 0.3 | 0.5 | 0.15 | 0.04 | 0.05 | 0.05 | 0.001 |
Grade X52N-PSL2 Welded Pipe Chemical Element Composition (%)
| Composition | C | Si | Mn | P | S | Cr | Ni | Cu | Mo | Ti | V | Nb | B | More | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weld pipe | Min | - | - | - | - | - | - | - | - | - | - | - | - | - | Nb+V+Ti≤0.15 |
| Max | 0.24 | 0.45 | 1.4 | 0.025 | 0.015 | 0.3 | 0.3 | 0.5 | 0.15 | 0.04 | 0.1 | 0.05 | 0.001 |
API 5L standards specify chemical composition, but place greater emphasis on ensuring mechanical properties. PSL2 requirements are stricter than PSL1, particularly regarding carbon equivalent (CE) and the control of harmful elements such as phosphorus and sulfur, to ensure good weldability and toughness.
Carbon Equivalent (CE): PSL2 grade X52 has specific limits on carbon equivalent to ensure good weldability and prevent cracking during welding.
Phosphorus (P) and Sulfur (S) Content: PSL2 grades have lower requirements to improve the purity of the steel pipe and its resistance to hydrogen-induced cracking (HIC).
About our company
GNEE Steel Group is an authorized distributor for numerous steel mills, including Anyang Iron & Steel, Puyang Iron & Steel, Suogang Steel, Shougang Steel, Nanjing Iron & Steel, Wuhan Iron & Steel, and Hebei Iron & Steel. Our main product lines cover 12 major series and over 300 brands. Partnering with many domestic steel mills, we offer reliable product quality, maintain ample inventory, and provide processing technologies such as steel pipe cutting to meet your dimensional needs for steel products.
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