X70 Pipeline steel Introduction X70 pipeline steel cutting X70 blanking

X70 Pipeline steel Introduction X70 pipeline steel cutting X70 blanking

Introduction of X70 steel plate
1, X70 steel sheet Introduction X70 pipeline steel is the American Petroleum Institute "API Spec 5L pipeline steel Specification" in the label. X stands for pipeline steel in the API Spec 5L standard, and 70 is the strength level, which is measured in kpsi.
2, X70 steel yield strength X70 pipeline steel US unit yield strength * small value the first two X70 that is, pipeline steel pipe * small yield strength 70psi.
3, X70 steel main properties X70 pipeline steel has high strength, high toughness, good weldability, a certain resistance to HIC, SSC performance, and improve the pipeline steel grade can save construction costs.
4, X70, L485 pipeline steel implementation standards: API SPEC 5L-2012 standard, GB national standard, special standards for each project.
5, X70 pipeline steel delivery status: mainly in hot rolled or normalizing supply.
6, X70 steel plate chemical element analysis pipeline steel Early pipeline steel has been C, Mn, Si type of ordinary carbon steel, in the metallurgical side of the heavy performance, there are no strict regulations on the chemical composition. Since 1960, with the increase of the pressure and diameter of oil and gas pipelines, low-alloy high-strength steel (HSLA) has been used, mainly in hot rolled and normalized supply.
 

Chemical composition

Tabulation: Depu Steel Date: 2024-01-16

C	Si	Mn	P	S
≤0.12	≤0.45	≤1.70	≤0.025	≤0.015

Attachment: Cu≤0.50%; Ni≤0.50%; Cr≤0.50%; Mo≤0.50%; B 0.001% or less

X70 steel plate Practical application: X70 pipeline steel is mainly used in oil and gas pipelines.
X70 pipeline steel plate cutting: steel plate cutting refers to the process of using natural gas flame (oxygen-natural gas) to preheat the cut metal to the ignition point that can be violently burned, and then release the hyperbaric oxygen gas stream to further violently oxidize the metal and blow off the slag generated by combustion to form a incision.
The cutting methods of steel plate include flame cutting, laser cutting, wire cutting, plate shears, plasma cutting, ultra-high pressure water cutting and other methods. The cost of flame cutting equipment is low and it is an economical and effective means to cut thick metal plates, but it has its shortcomings in thin plate cutting. So thick plates are usually cut with flame.