API 5L X70 Pipeline Steel Plate

API 5L X70 is a high-strength low-alloy (HSLA) pipeline steel plate specified by the American Petroleum Institute (API) standard API 5L, primarily designed for oil, gas, and water transmission pipelines. Its excellent mechanical properties, weldability, and resistance to harsh environments make it widely used in long-distance pipeline projects, especially in high-pressure and demanding service conditions. Below is a detailed overview of its key characteristics, applications, and technical specifications:

1. Key Mechanical Properties

API 5L X70 steel plate is defined by its high tensile strength and toughness, ensuring reliability under pipeline operating pressures. Typical properties (per API 5L specifications) include:

 

Minimum yield strength: 485 MPa (70,300 psi) – hence the designation "X70," where "X" denotes tensile strength class and "70" refers to the minimum yield strength in ksi (kilopounds per square inch).

Tensile strength: 570–760 MPa.

Elongation: ≥18% (in 200 mm gauge length), ensuring good ductility for forming and resisting brittle fracture.

Impact toughness: Requires excellent low-temperature toughness (e.g., ≥40 J at -20°C or lower, depending on project specifications) to withstand dynamic loads and cold climates.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
We analyze and compare the previous products and the current technical situation of our API 5L X70 Pipeline Steel Plate, and develop new technical specifications and processes.
Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.
We strictly implement the warm and thoughtful after-sales service, adhere to the development of good professional ethics.
We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
We adhere to the customer-centric and brand-oriented business philosophy, and continue to provide customers with reliable and excellent products and services.
Our factory is committed to upholding the highest standards of safety and quality.
All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.
Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

Hot Tags: api 5l x70 pipeline steel plate, China api 5l x70 pipeline steel plate suppliers, factory, 2 4819, HastelloyB-2, Inconel825, N06600, N06601, N08800