





Line Pipe Steel Plate
Classification :
Product introduction
Line Pipe Steel Plate is a specialty steel plate used specifically for the manufacture of long-distance pipelines (such as oil and gas pipelines and water pipelines) that transport fluids such as oil, gas, water, and mud. It is a key structural material in energy transportation and urban infrastructure construction. Its core requirements are high strength and toughness, along with excellent Weldable, corrosion resistance, and low-temperature resistance to withstand the complex working conditions encountered during pipeline laying (such as in the field, deep sea, and in low-temperature permafrost regions).
Core features
1. High strength (pressure resistance, deformation resistance)
2. High toughness (low temperature resistance, impact resistance)
3. Excellent Weldable
4. Corrosion resistance
5. Good forming
Implementation standards and specifications
Grade | Implementation standards | Specifications |
L210/A L245/B L290/X42 L360/X52 L390/X56 L415/X60 L450/X65 L485/X70 L245N/BN~L415N/X60N L245M/BM~L555M/X80M L245Q/BQ~L555Q/X80Q L245MS/BMS~L485MS/X70MS L245MO/BM0~L555MO/X80MO L360MH/X52MH L450MC/X65MC | API SPEC5L 46TH EDITION-2018 GB/T 21237 GB/T 9711 | 4~50*1500~4100 |
Implementation standards | Scope of application | Grade | Application engineering |
API 5L | Global oil and gas pipelines (common in international projects) | X42、X52、X60、X70、X80、X100 | China-Russia East Line (X100 section), China-Kazakhstan crude oil pipeline |
GB/T 9711-2011 | Domestic oil, gas and water pipelines | API 5L 的 X42-X100,(如 X65QS、X70L) | West-East Gas Pipeline Lines 1 and 2 (X70), South-to-North Water Diversion Project (X52) |
EN 10219 | Pipeline projects in Europe and export to Europe | S235、S275、S355(对应 API X42-X60)、L415(X60)、L485(X70) | European North Sea oil and gas pipeline |
Implementation standards and specifications
Strength level | Yield strength(MPa) | Tensile strength(MPa) | Typical application scenarios |
X42 | 290 | 415 | Low-pressure water pipelines, low-pressure crude oil pipelines (pressure ≤ 4MPa) |
X52 | 360 | 485 | Medium-pressure natural gas pipelines (city gas pipelines), industrial slurry pipelines |
X60 | 415 | 520 | Medium and high pressure oil and gas pipelines (pressure 6-8MPa), conventional onshore pipelines |
X70 | 485 | 570 | High-pressure oil and gas pipelines (pressure 10MPa) |
X80 | 550 | 625 | Ultra-high-pressure long-distance pipelines (such as the China-Russia East Line natural gas pipeline) |
X100 | 690 | 760 | Ultra-high pressure pipelines (pressure 12-14 MPa), deep-sea pipelines |
Application areas
Pipeline steel plate is a specialty steel designed specifically for pipelines. Its design philosophy centers on "safe transportation" and "environmental adaptability." Through material optimization and process control, it achieves a comprehensive combination of high strength, high toughness, Weldable, and corrosion resistance. With growing global energy demand and the trend toward high-pressure, long-distance, and extreme-environment pipeline projects, pipeline steel is evolving toward higher strength (such as X120) and higher corrosion resistance (such as deep-sea corrosion resistance).
Energy: Oil pipelines (such as the China-Kazakhstan crude oil pipeline), natural gas pipelines (such as the West-East Gas Pipeline Lines 1 and 2, and the China-Russia East Pipeline), and shale gas pipelines.
Municipal: Urban water pipelines and sewage treatment plant sludge pipelines.
Industrial: Acid and alkali solution pipelines within chemical parks and slurry pipelines (such as Desulfurization slurry) for power plants.
CUSTOMER FEEDBACK

APPLICATION AREAS

Ship

Airplane

Mining

Oil mining

Wind power

High -speed railway
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