ASTM A335 is a common material for American standard alloy steel seamless pipes, which are widely used industry such as petroleum, chemical, power, and nuclear energy. It's material contains alloy elements such as Cr, Ni, and Mo, which can improve the high-temperature and high-pressure resistance, corrosion resistance, and mechanical properties of steel pipes. It can be widely used in complex pipeline environments with high temperature and pressure.

ASTM A106 seamless steel pipe outer diameter size range from 1/8 inch to 48 inches.The length of seamless steel pipes is divided into fixed length and loose length, with fixed length generally being 5.8 meters or 6 meters, 11.8 meters or 12 meters per unit length.

As can be seen from the above picture, the EN 1092-1 TYPE11 flange is a weld neck flange. Weld-neck flange is a type of flange pipe with a neck and a circular steel pipe connection, which is connected to the pipe end by butt welding. Weld neck flanges are not easy to deform and are used in conjunction with bolts and gaskets.

EN1092-1 flanges are a European standard flange that specifies requirements for the dimensions, types, materials, and manufacturing of flanges under different pressure levels. This standard ensures the interchangeability and compatibility of flanges, allowing pipe fittings produced by different manufacturers to be smoothly connected.

Butt welding elbow is the most widely used type of pipe fitting in pipeline systems. It plays a role in changing the direction of the pipeline in the pipeline system. EN10253-2 butt welding elbow can be divided into 45 degree elbow, 90 degree elbow and 180 degree elbow according to the angle; it can be divided into 2D elbow, 3D elbow and 5D elbow according to the bending radius.

According to different purposes and connection methods, stainless steel forged fittings can be divided into various types, such as elbows, tees, crosses, couplings, caps, unions, etc. In the current industrial, stainless steel forged fittings have become an important component of fluid conveying systems.