The chemical composition of ASTM A537 mainly includes carbon (C), manganese (Mn), silicon (Si), phosphorus (P), sulfur (S), nickel (Ni), chromium (Cr) and molybdenum (Mo). The specific chemical composition range is as follows:
The content of carbon (C) should not be greater than 0.24%.
The content of manganese (Mn) should be between 0.7~1.6%.
The content of silicon (Si) should be between 0.15~0.5%.
The contents of phosphorus (P) and sulfur (S) should not exceed 0.035%.
The content of nickel (Ni) should not be greater than 0.25%.
The content of chromium (Cr) should not be greater than 0.25%.
The content of molybdenum (Mo) should not be greater than 0.08%.
The proportion and content of these chemical components have an important impact on the mechanical properties, wear resistance, corrosion resistance and other characteristics of ASTM A537 steel plates.
ASTM A537 is an American standard steel plate for pressure vessels. Its characteristics are mainly reflected in the following aspects:
1. Excellent mechanical properties: ASTM A537 steel plate has high yield strength and tensile strength, allowing it to withstand large pressures and heavy loads. In addition, it also has good impact toughness, especially in low temperature environments, which provides a strong guarantee for the safe operation of pressure vessels.
2. Good welding performance: This kind of steel plate can be connected by conventional welding methods. The welded joint not only has high strength, but also has good toughness, which greatly increases its flexibility in the manufacturing of various structural parts.
3. Good corrosion resistance: ASTM A537 steel plate has a certain degree of corrosion resistance and can resist the erosion of corrosive media to a certain extent, thereby extending the service life of the equipment.
4. Wide range of applications: Due to its excellent performance, ASTM A537 steel plates are widely used in the manufacturing of pressure vessel equipment in petroleum, chemical, fertilizer, power station and other industries. Specific products include reaction heat exchangers, separators, spherical tanks, oil and gas tanks, liquefied gas tanks, nuclear reactor pressure shells, boiler drums, high-pressure water pipes for hydropower stations, turbine volutes and other equipment and components.
The delivery method of ASTM A537 steel plates is usually determined according to the customer's needs and the specific circumstances of the order. Generally speaking, there are the following common delivery methods:
Delivery in hot-rolled condition: This is the most common delivery method for ASTM A537 steel plates. Hot-rolled steel plates are rolled at high temperatures during the production process and have excellent mechanical properties and surface quality. After customers receive the steel plates, they can undergo further processing or heat treatment as needed.
Delivery in normalized or normalized + tempered state: For orders with certain specific requirements, ASTM A537 steel plates can also be delivered in normalized or normalized + tempered state. This delivery method can ensure that the steel plate has specific organization and performance to meet customers' special requirements for materials.
ASTM A537 has a wide range of applications and is mainly used to manufacture various pressure vessels and high-temperature and high-pressure equipment. Specifically, this kind of steel plate is often used to manufacture equipment and components such as boilers, pressure vessels, reactors, heat exchangers, separators, spherical tanks, oil and gas tanks, liquefied gas tanks, etc. In addition, it is widely used in key equipment and structures such as nuclear reactor pressure shells, boiler drums, high-pressure water pipes in hydropower stations, and turbine volutes.
