CR270LA Cold Rolled Sheet

 

1. CR270LA standard

CR270LA is a cold-rolled strip steel, and its standard is GB/T 20564-2017 "High-strength low-alloy structural steel high-strength cold-rolled strip steel".

 

2. Specific chemical composition range

The chemical composition range of CR270LA is as follows:

- Carbon (C): 0.08-0.14 percent

- Silicon (Si): Less than or equal to 0.50 percent

- Manganese (Mn): 0.40-0.70 percent

- Phosphorus (P): Less than or equal to 0.025 percent

- Sulfur (S): Less than or equal to 0.025 percent

- Niobium (Nb): 0.015-0.045 percent

- Vanadium (V): Less than or equal to 0.08 percent

- Chromium (Cr): Less than or equal to 0.30 percent

- Nickel (Ni): Less than or equal to 0.30 percent

- Copper (Cu): Less than or equal to 0.30 percent

- Titanium (Ti): Less than or equal to 0.15 percent

- Aluminum (Al): Less than or equal to 0.03 percent

 

3. Tensile strength, yield strength, elongation at break

The mechanical properties of CR270LA are as follows:

- Tensile strength: Greater than or equal to 270MPa

- Yield strength: Greater than or equal to 140MPa

- Elongation at break: Greater than or equal to 34 percent

 

4. Use and state

CR270LA is used in the manufacture of automobile components, automobile frames, etc. Its states include heat treatment, cold rolling, and cold rolling annealing.

 

5. Advantages

The advantages of CR270LA include:

- Good machinability;

- Good weldability;

- Low temperature impact value, can be used in low temperature environments.

 

6. Disadvantages

The disadvantages of CR270LA are that the tensile strength, yield strength, and toughness are generally average, and the cost is higher.

 

7. Most common forms

The most common forms of CR270LA are strip and plate.

 

8. Comparison of domestic and foreign grades

The grades of CR270LA in various countries are as follows:

- China: CR270LA

- United States: ASTM A1008

- Japan: JIS G3141

- Germany: DIN EN 10139

 

Overall, CR270LA is a common cold-rolled strip steel material, widely used in the automotive manufacturing and other fields. Its advantages include good machinability, weldability, and low temperature impact value, while the disadvantages include generally average tensile strength, yield strength, and toughness, and higher costs. The most common forms are strip and plate, and the corresponding grades in each country are different.

 

 

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	7-15 days or according to the order quantity or negotiation

 

 

• Our company adheres to the tenet of "excellent quality, thoughtful service, customer-oriented, and integrity-based" to provide customers with high-quality products and perfect services. With reliable products, advanced production technology, and perfect after-sales service, we have always been in an advantageous position in the industry.
• We make sure that all our CR270LA are rigorously debugged several times prior to leaving the factory to ensure that each customer receives high quality products.

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