EN10253-4 stainless steel butt welded pipe fittings

• The EN 10253-4 standard is a specification document for the production of stainless steel butt weld fittings, setting clear requirements for the dimensions, tolerance ranges, and material properties of these components. Stainless steel butt weld fittings are widely used in industrial fields as pipe connection components, made from stainless steel material, and are known for their corrosion resistance and high-temperature performance.
• Performance Requirements of EN 10253-4 Stainless Steel Butt Weld Fittings

The EN 10253-4 standard also specifies the mechanical properties and testing methods for these fittings, such as tensile strength, yield strength, and elongation, to ensure that the fittings can withstand sufficient pressure and stress during use. The EN 10253-4 standard includes over twenty European stainless steel materials such as X2CrNi18-9 (1.4307), X2CrNi19-11 (1.4306), X2CrNiN18-10 (1.4311), X5CrNi18-10 (1.4301), X6CrNiTi18-10 (1.4541), X6CrNiNb18-10 (1.4550), X1CrNi25-21 (1.4335), X2CrNiMo17-12-2 (1.4404). Below are the chemical composition and mechanical properties parameters table for each material grade.

Chemical Composition

Mechanical performance

• Types of Stainless Steel Butt Weld Fittings According to EN10253-4

Stainless steel fittings are typically used to connect different parts of a piping system to ensure the smooth transmission of fluids or gases. According to the EN 10253-4 standard, the dimensions of stainless steel fittings must conform to the standard requirements to ensure the interchangeability and assembly accuracy of the fittings. Additionally, the material requirements for the fittings must also meet the standard specifications to ensure the quality and reliability of the fittings. The EN10253-4 standard includes various types of stainless steel butt weld fittings, such as 45-degree elbows, 90-degree elbows, 180-degree elbows, equal tees, reducing tees, concentric reducers, eccentric reducers, and end caps.

• The EN 10253-4 standard provides crucial guidance for the manufacturing and use of stainless steel fittings, ensuring the quality and reliability of these components, and securing the normal operation and safety of the piping systems. When selecting pipe fittings, it is important to consider the specific requirements of the application, such as pressure, temperature, fluid characteristics, mechanical loads, and cost factors. Additionally, the selection should also be based on the recommendations of engineers or designers to ensure that the chosen fittings meet the requirements of the project.