ASTM A537CL2 SA285GrB

SA285GrB steel plate is a low-carbon steel plate specified by the American Society for Testing and Materials (ASTM) standard A285, mainly used to manufacture low-pressure and medium-pressure heating system pressure vessels. Its typical mechanical properties include a minimum yield strength of 205 MPa, a tensile strength of 380-485 MPa, an elongation of 22%-27%, and an impact toughness of not less than 27J at 0°C. This steel plate is widely used in the manufacture of pressure vessels, heat exchangers, boilers, storage tanks and other components in the petroleum, chemical, electric power, shipbuilding and other industries, and can withstand working requirements under low pressure (not exceeding 2.5 MPa) and medium temperature (not exceeding 350°C).

ASTM A285 Grade B (A285GRB) Pressure Vessel And Boiler Steel Plate Chemical Composition

ASTM A285 Grade B (SA285GRB) Pressure Vessel And Boiler Steel Plate Mechanical Property

Low To Medium Intensity
The yield strength of SA285GrB steel plate is 205MPa, the tensile strength range is 380-515MPa, and the strength is moderate. It can meet the mechanical performance requirements of medium and low pressure vessels, while avoiding the processing difficulties that may be caused by excessively high strength materials. It is suitable for manufacturing storage tanks, low pressure Equipment such as boilers and heat exchangers.

Ductility
The elongation of SA285GrB steel plate is usually between 22% and 27%, indicating that it has high ductility when stretched. Thanks to this, the steel plate is less likely to break during processing and is widely used in pressure vessels that require bending during processing.

Solderability
The carbon equivalent (Ceq) of SA285GrB steel plate is usually less than 0.35%, which is significantly lower than ordinary structural steel (such as Q235, the carbon equivalent is about 0.55%), which greatly improves its weldability and reduces the risk of cracks during welding. reduced to 0.5%. When manufacturing large storage tanks or chemical containers, its welding performance can effectively reduce production cycle and construction costs.

Corrosion Resistance
The surface of the SA285GrB steel plate is coated with an anti-corrosion layer with a thickness of 50-150 μm, which significantly improves its corrosion resistance. When storing chemical liquids (such as low-concentration acid and alkali solutions), their lifespan can exceed 15 years. This feature is particularly suitable for the production of storage tanks and pipelines in the chemical industry, reducing the frequency of equipment replacement and maintenance costs caused by corrosion.

Manufacturing Of Medium And Low Pressure Storage Tanks
SA285GrB steel plates are widely used in medium and low pressure storage tanks for storing liquids and gases, such as oil storage tanks, chemical liquid storage tanks and food processing storage tanks.

Pressure Vessel Structural Parts
SA285GrB steel plates are often used to manufacture equipment for storing pressure media (such as air separation equipment, gas storage tanks).

Pipelines And Containers In The Chemical Industry
SA285GrB steel plates are often used in the manufacture of low-corrosive pipelines and containers in the chemical industry.

Cryogenic Equipment
SA285GrB steel plates can maintain good toughness in low temperature environments (such as -30°C) and are often used to manufacture cryogenic liquefied gas storage tanks and refrigeration equipment.

Food Processing Equipment
The surface treatment process makes the steel plate have good corrosion resistance, which is suitable for manufacturing equipment for storing and processing liquid foods (such as milk and beer).

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