St70-2 is a carbon structural steel in the German standard2. It has relatively high strength and good toughness, and is widely used in the engineering field for manufacturing various engineering components and mechanical parts3. Here is a detailed introduction:

Naming Convention2

In the name "St70 - 2", "St" represents "steel", which means carbon steel. The number "70" indicates that the average carbon content in the steel is 0.70%, and "2" represents the quality grade as level 2.

Chemical Composition3

Carbon (C): 0.60% - 0.75%

Silicon (Si): 0.15% - 0.35%

Manganese (Mn): 0.90% - 1.20%

Phosphorus (P): 0.04% - 0.09%

Sulfur (S): 0.03% - 0.07%

Mechanical Properties3

Tensile strength: \(\sigma_b \geq\) 700MPa

Yield strength: \(\sigma_s \geq\) 450MPa

Elongation: \(\delta \geq\) 16%

Reduction of area: \(\psi \geq\) 50%

Impact toughness: \(\alpha_k \geq\) 20J/cm²

Specification we supply：

Thickness	3-200mm
Width	1500-4000mm
Length	5000-15000mm

 

 

 

 

 

 

 

 

 

 

 

 

 

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 St70-2 High Performance Steel, 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.

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