EN10088-2 X6CrNiNb18-10, also known as 1.4550, is a precipitation-hardening stainless steel plate that combines excellent corrosion resistance with high strength and toughness. This grade is particularly valued for its ability to maintain these properties at elevated temperatures and is widely used in various industries where these characteristics are crucial.

Chemical Composition:

The chemical composition of X6CrNiNb18-10 is tightly controlled to ensure its unique properties. The typical chemical composition includes:

· Carbon (C): 0.05 - 0.15%

· Silicon (Si): ≤ 1.00%

· Manganese (Mn): ≤ 1.00%

· Phosphorus (P): ≤ 0.045%

· Sulfur (S): ≤ 0.030%

· Chromium (Cr): 17.00 - 19.00%

· Nickel (Ni): 9.50 - 12.50%

· Niobium (Nb): 0.30 - 0.60%

· Nitrogen (N): ≤ 0.11%

· Iron (Fe): Balance

Mechanical Properties:

The mechanical properties of 1.4550 are impressive, with the following characteristics:

· Tensile Strength: 750 - 950 MPa

· Yield Strength: ≥ 550 MPa

· Elongation: ≥ 12%

· Hardness: 270 - 330 HB or 28 - 35 HRC

Heat Treatment Conditions:

The precipitation-hardening process is key to achieving the desired mechanical properties of X6CrNiNb18-10. The typical heat treatment conditions are:

· Solution Annealing: Heat to 1010 - 1120°C, followed by rapid cooling.

· Aging: Precipitation hardening is achieved by heating to 480 - 620°C for 4 hours, followed by air cooling.

Available Dimensions:

TJC Steel Group offers X6CrNiNb18-10 stainless steel plates in a wide range of sizes to meet the diverse needs of our customers. The available dimensions include:

· Thickness: 3mm - 120mm

· Width: 1000mm - 3000mm

· Length: 2000mm - 12000mm

Low-Temperature Impact Test:

X6CrNiNb18-10 demonstrates good toughness at low temperatures, with impact values typically exceeding industry standards. The material is suitable for applications where low-temperature resistance is required.

Main Applications:

Due to its excellent properties, 1.4550 is used in a variety of demanding applications, including:

· Aerospace components

· Nuclear engineering

· Chemical processing equipment

· High-temperature fasteners

· Medical devices

· Pressure vessels

TJC Steel Group Supply Cases:

TJC Steel Group has successfully supplied X6CrNiNb18-10 stainless steel plates to numerous clients worldwide. One notable case involved the supply of high-quality plates for the construction of a chemical processing plant in Europe. The material's resistance to corrosion and its ability to withstand high temperatures made it the ideal choice for the client's application.

Another case saw TJC providing material for a project in the aerospace sector, where the high strength and toughness of 1.4550 were essential for the production of critical components.

In conclusion, EN10088-2 X6CrNiNb18-10, or 1.4550, is a versatile stainless steel grade that offers a unique combination of corrosion resistance, strength, and toughness. TJC Steel Group is proud to offer this material in various sizes and to have supplied it for critical applications across multiple industries. With our commitment to quality and customer satisfaction, TJC continues to be a trusted supplier of high-performance stainless steel products.