Using Fire - retardant Coatings

 

Principle: Fire - retardant coatings will undergo physical and chemical changes when exposed to fire, forming a heat - insulating and oxygen - isolating protective film. This film can prevent heat from being transferred to the interior of the steel, reduce the heating rate of the steel, and thus delay the decline of the mechanical properties of the steel. For example, intumescent fire - retardant coatings will expand and foam when heated, forming a foamy carbonaceous layer with a thickness that can be dozens of times the original. The thermal conductivity of this carbonaceous layer is very low and can effectively block heat.

 

Construction Key Points: Before construction, it is necessary to clean and derust the surface of the steel to ensure that the surface is flat and dry. Generally, spraying or brushing methods are used. The coating thickness should be uniform and meet the specified fire - resistance rating requirements. For example, for different building fire - protection grade requirements, the thickness of the fire - retardant coating may range from a few millimeters to dozens of millimeters. During the construction process, attention should be paid to the ambient temperature and humidity, and construction in bad weather conditions should be avoided to prevent the adhesion and fire - retardant performance of the coating from being affected.

 

Wrapping with Fire - proof Boards

 

Principle: Fire - proof boards are plates with good fire - proof performance, such as gypsum boards and fiber - reinforced cement boards. Wrapping them around the surface of low - alloy high - strength structural steel can play a role in isolating flames and heat when a fire occurs. These fire - proof boards usually have a relatively high fire - resistance rating and can maintain structural integrity for a certain period of time, providing time for personnel evacuation and fire - fighting and rescue.

 

 

 

Filling with Fire - proof and Heat - insulating Materials

 

Principle: Fire - proof and heat - insulating materials such as rock wool and aluminum silicate fiber can be filled in the hollow parts of steel structure members or wrapped around them. These materials have a very low thermal conductivity and can effectively prevent the transfer of heat. For example, rock wool will not burn at high temperatures and can absorb a large amount of heat, making the steel heat up slowly in a fire.

 

Construction Key Points: When filling, it is necessary to ensure that the materials are filled densely without voids. If it is a wrapped - type filling, the heat - insulating materials need to be fixed with suitable binding materials (such as high - temperature - resistant fabrics, etc.). For different - shaped steel structure members, appropriate filling or wrapping methods should be adopted to achieve the best fire - proof and heat - insulating effect. At the same time, it should be noted that the selection of fire - proof and heat - insulating materials should meet the requirements of building fire - protection design and environmental protection requirements.

 

 

 

 

 

 

BV F690 Mechanical properties

Grade	Thickness	Yield Strength	Tensile Strength	Elongation	Impact Energy
	(mm)	MPa (min)	MPa	% (min)	(KV J) (min)
					0 degree
BV F690	8-260	690	770-940	14	46J

 

 

 

 

 

Conducting Fire - proof Structural Design

 

Principle: Through reasonable building structural design, steel structure members are placed in positions with relatively less impact from fire. For example, in high - rise buildings, steel structure columns can be placed inside the core tube, and non - combustible materials such as concrete can be used to protect the steel structure. At the same time, fire - compartments and fire - separation components such as fire - walls and fire - curtains are set up to prevent the fire from spreading to the area where the steel structure is located.

 

Construction Key Points: In the building design stage, fire - protection measures for the steel structure should be considered and comprehensive fire - proof structural design should be carried out. The division of fire - compartments should comply with relevant building design codes, and the fire - resistance rating of fire - walls and fire - curtains should meet the requirements. During the construction process, it is necessary to ensure the installation quality of fire - separation components, guarantee their sealing and stability. And it is necessary to consider the coordination between the fire - proof structural design and other building systems (such as ventilation systems, water - supply and drainage systems, etc.).

 

 

 

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 BV/F690 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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