EN10028-6 P460QH is a pressure vessel steel grade that is widely recognized for its exceptional strength and durability, particularly at low temperatures. This grade is part of the European standard for flat products for pressure equipment and is designed to withstand the rigorous demands of the chemical, petrochemical, and power generation industries.

Chemical Composition:

The chemical composition of EN10028-6 P460QH is tightly controlled to ensure the steel's mechanical properties and weldability. The typical chemical composition includes:

· Carbon (C): ≤ 0.16%

· Silicon (Si): ≤ 0.50%

· Manganese (Mn): ≤ 1.50%

· Phosphorus (P): ≤ 0.020%

· Sulfur (S): ≤ 0.010%

· Aluminum (Al): ≥ 0.020%

· Niobium (Nb): ≤ 0.05%

· Titanium (Ti): ≤ 0.03%

· Vanadium (V): ≤ 0.05%

· Boron (B): ≤ 0.005%

· Chromium (Cr): ≤ 0.30%

· Copper (Cu): ≤ 0.30%

· Molybdenum (Mo): ≤ 0.10%

· Nickel (Ni): ≤ 0.50%

· Nitrogen (N): ≤ 0.012%

Mechanical Properties:

The mechanical properties of P460QH are characterized by high strength and excellent toughness, which are crucial for pressure vessel applications. The typical mechanical properties are as follows:

· Yield Strength (ReH): ≥ 460 MPa

· Tensile Strength (Rm): 570 - 720 MPa

· Elongation (A5): ≥ 18%

· Impact Energy (KV): ≥ 40 J at -40°C

Heat Treatment:

P460QH is generally supplied in the thermomechanically rolled condition (TMCP), which provides the steel with its superior mechanical properties. The TMCP process involves controlled rolling and cooling techniques that refine the microstructure and enhance the strength and toughness of the steel.

Low-Temperature Impact Test:

The grade is subjected to a low-temperature impact test to ensure its toughness at sub-zero temperatures. The minimum impact energy value of 40 J at -40°C is a testament to its suitability for cryogenic applications.

Available Dimensions:

TJC Steel Group offers EN10028-6 P460QH in a wide range of sizes to cater to various project requirements. The typical available dimensions include:

· Thickness: 6mm to 300mm

· Width: 1500mm to 4020mm

· Length: 3000mm to 18000mm

Main Applications:

The primary applications of P460QH steel plate include:

· Pressure vessels

· Boilers

· Heat exchangers

· Storage tanks

· Columns and other critical components in the oil and gas industry

· Equipment for the chemical and petrochemical industries

· Power plant construction

TJC Steel Group Supply Cases:

TJC Steel Group has a proven track record of supplying high-quality P460QH steel plates to various industries worldwide. One notable supply case involved the delivery of 500 metric tons of P460QH steel plates for a major oil refinery expansion project in Southeast Asia. The steel plates were used to construct high-pressure vessels, and their exceptional performance was highlighted by the client for their reliability and safety in operation.

In another instance, TJC supplied P460QH steel to a leading manufacturer of liquefied natural gas (LNG) storage tanks. The steel's superior low-temperature toughness was critical for ensuring the integrity of the tanks in cryogenic conditions.

TJC Steel Group's commitment to quality and customer satisfaction has made it a trusted supplier of P460QH steel plates, with a reputation for delivering materials that meet and exceed the stringent requirements of the most demanding applications.

In conclusion, EN10028-6 P460QH is a high-performance pressure vessel steel that offers excellent strength, toughness, and weldability. Its versatility and reliability make it suitable for a wide range of critical applications, and TJC Steel Group's extensive experience in supplying this grade underscores its position as a leading provider of high-quality steel products.