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Description: API 5L X70 pipeline steel is a kind of low alloy high strength structural steel, which is the highest level of steel pipe specified by API 5L standard, with the minimum strength level of X70 and the maximum strength level of X80. API 5L X70 pipeline steel...
Processing Service: Cutting, Welding, Drilling, Rolling, Bending, Forming, Grinding, Stamping and so on machining
Available Size: Thickness:1.2mm-40mm, Width:1220mm-4200mm, Length: 5000-18000mm
API 5L X70 pipeline steel is a kind of low alloy high strength structural steel, which is the highest level of steel pipe specified by API 5L standard, with the minimum strength level of X70 and the maximum strength level of X80. API 5L X70 pipeline steel is used for petroleum, natural gas, liquefied petroleum gas, gas, chemical, power, metallurgy and other applications, it has excellent tensile strength and compressive strength, corrosion resistance, can prevent the corrosion of pipeline internal and external, also has good heat resistance performance in high temperature environment.
The chemical composition of API 5L PSL1 X70 pipeline steel is mainly composed of carbon, silicon, sulfur, manganese, nickel, chromium, molybdenum, titanium, zirconium and other components, among which the content of carbon is the highest, the higher the carbon content, the higher the strength of the steel, but at the same time, the toughness of the steel will be reduced. The biggest advantage of API 5L X70 pipeline steel lies in its tensile strength and compressive strength, which are both high, making it a very popular product. The tensile strength of API 5L X70 pipeline steel can reach 485MPa, and the compressive strength can reach 570MPa, which makes it have excellent strength and durability to meet the high requirements of pipeline system. The surface quality of its fracture is also very good, the fracture surface is smooth, few defects, can meet the complex working condition requirements of pipeline system. In high temperature environment, API 5L X70 pipeline steel has good heat resistance performance, its heat resistance limit can reach 650°C, which makes it can meet the requirements of using in high temperature working conditions.
API Spec 5L X70 pipeline steel also has excellent corrosion resistance, it can prevent the corrosion of pipeline internal and external, especially in coastal areas, it can effectively prevent the corrosion of seawater and prolong the service life of pipeline. API 5L X70 pipeline steel has excellent mechanical properties, but its price is relatively expensive, so when using, it requires economic benefits. In addition, the welding performance of API 5L X70 pipeline steel is also very good, it can be welded by fusion welding, as well as arc welding, which can effectively reduce welding loss and improve welding quality.
Thickness: 1.2mm to 40mm
Width: 1220mm to 4200mm
Length: 5000mm-18000mm, customized length
Tolerance: Thickness: +/-0.02mm, Width:+/-2mm
Further processing: Flame Cutting Steel, Laser Cut Steel, Waterjet cutting sheet steel, Plasma Cutting Services, Oil and Gas tanks making.
Grade | Mass fraction, based upon heat and product analysis (%) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
C | Si | Mn | P | S | V | Nb | Ti | C.E. | ||
max. | max. | max. | max. | max. | max. | max. | max. | IIW | PCM | |
X70 or L485 | 0.28 | - | 1.40 | 0.030 | 0.030 | - | - | - | - | - |
Grade | Pipe body of seamless and welded pipe | Weld seam of EW, LSAW, SSAW and COW pipes | ||
---|---|---|---|---|
Yield strength | Tensile strength | Elongation (on 50mm or 2 in) | Tensile strength | |
Rt0.5 | Rm | Af | Rm | |
MPa(psi), min | MPa(psi), min | % minimum | MPa (psi), min | |
L485 or X70 | 485 (70 300) | 570 (82 700) | c | 570 (82 700) |
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