The main purposes of custom - made heat - treatment processes are as follows:

 

Optimize Mechanical Properties

 

Increase Strength: Processes such as quenching can enhance the strength of steel. For example, quenching enables steel to form a martensitic structure, which has relatively high hardness and strength. In the machinery - manufacturing industry, for parts that bear heavy loads (such as crane rails and construction - machinery components), a combination of quenching and tempering processes can be used. The quenching temperature is from 910 °C to 940 °C, with oil quenching, and the tempering temperature is from 580 °C to 630 °C, with a holding time of 2 - 3 hours followed by air - cooling. This can effectively increase the strength of the steel, enabling it to withstand higher pressure and tensile forces.

 

Improve Toughness: Normalizing and tempering processes are helpful in improving the toughness of steel. In the shipbuilding and marine - engineering field, for components with complex shapes that require microstructure and property improvement after welding (such as the bulkhead structures of ships), normalizing treatment (the normalizing temperature is from 920 °C to 960 °C, and air - cooling after holding) can refine the grain and eliminate welding stress, thereby improving the toughness and fatigue resistance of the material. The improvement of toughness makes the material less likely to break when subjected to impact or dynamic loads, increasing the safety and reliability of the material.

 

 

 

Improve Machining Properties

 

Reduce Hardness for Easier Machining: In the construction industry, if CCS A420 steel is used for large - scale steel structural components (such as bridges and high - rise building columns and beams), annealing treatment (the annealing temperature is generally from 780 °C to 820 °C, with a holding time of 3 - 4 hours, and then slowly cooled in the furnace to room temperature) can be carried out before machining. This can reduce the hardness of the steel, thereby improving the machining performance and making it easier to cut, drill, and so on during the machining process.

 

Eliminate Internal Stress to Reduce Deformation Risk: Both annealing and normalizing processes can eliminate the residual internal stress of steel to a certain extent. In the construction industry, after processing (such as welding and forging), steel will generate internal stress, which may lead to deformation during subsequent use. Through appropriate heat - treatment processes (such as the above - mentioned annealing or normalizing), these internal stresses can be eliminated, the deformation risk can be reduced, and the dimensional stability of the steel during use can be ensured.

 

 

 

 

 

 

 

Grade	Thickness	Yield Strength	Tensile Strength	Elongation	Impact Energy
	(mm)	MPa (min)	MPa	% (min)	(KV J) (min)
					-60 degree
CCS/FH40	8-220	390	510-650	20	41J

 

 

 

 

 

 

 

 

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 CCS F40 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.

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