API 5L L555Q Pipeline Seamless Steel Pipe
As an ISO certified company, GNEE upholds the principles of quality, safety and precision in all its products. We are the manufacturer, supplier and exporter of L555Q Seamless High Yield Pipe.
L555Q Carbon Steel Seamless Pipe is a seamless steel pipe produced as per API 5L pipeline steel pipe specification and is suitable for oil and gas transportation.
L555Q High Corrosion Resistant Pipe consists of carbon, silicon, manganese, phosphorus, sulfur, vanadium, niobium and titanium, these alloying elements can improve the corrosion and oxidation resistance of the pipe.
L555Q Oil and Gas Pipe is widely used in pipeline transportation systems in the oil and gas industry. It is suitable for transporting natural gas, water and oil, and can be used in offshore structures after modification.
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NS PSL2 Grade L555Q NS EN ISO 3183 Chemical element
| Element | Max |
|---|---|
| CE Pcm | - |
| C | 0.18 |
| Mn | 1.90 |
| P | 0.025 |
| S | 0.015 |
| Si | 0.450 |
| Ni | 1.00 |
| Cr | 0.50 |
| Mo | 0.50 |
| Cu | 0.50 |
| B | 0.004 |
| Nb+Ti+V | 0.150 |
| CEV | - |
NS PSL2 Grade L555Q NS EN ISO 3183 Mechanical properties
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 652 (≥) | 494 (≥) | 22 | 32 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 424 |
L555Q Service liquid acid steel pipe

Why choose us
GNEE pipes and tubes have a wide range of applications in many market sectors, including the oil and gas, petrochemical and construction industries. And we can offer different properties for different purposes (e.g. corrosion protection).
Gnee Factory environment

FAQ
1.One-Stop Solution
We have thousands of total production experience, from raw materials to finished products.
2.Competitive Price
Large scale purchase, standardized production process and efficient management make our price competitive.
3.Quick Shipping
Years of export experience enable us to control the transportation time more accurately.
4.Quality Control
The standardized production process, comprehensive management system, professional testing equipment Special material customization.
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