Two: chemical composition:

C≤0.030？ Mn≤2.00？ Si≤ 1.00？ p≤0.030？ S≤0.020？ Cr？ 22.0~23.0? Ni? 4.5~6.5? Mo3.0~3.5？ No. 14~0.20

Three. Scope of application Application field:

Pressure vessel, high-pressure storage tank, high-pressure pipeline, heat exchanger (chemical processing industry). ? Oil and gas pipeline, heat exchanger pipe fittings. ? Sewage treatment system. ? Pulp and paper industry classifier, bleaching equipment, storage and processing system. ? Rotating shaft, pressure roller, blade, impeller, etc. In a high-strength corrosion-resistant environment. The container of a ship or truck? . Food processing equipment?

Fourth, physical properties.

2205 density: 7.98g/cm3, melting point: 1300- 1390℃, magnetism: none? Heat treatment: heat preservation at 1000- 1050℃ 1-2 hours, and rapid air cooling or water cooling.

V. Overview

The yield strength of 2205 duplex stainless steel is twice that of austenitic stainless steel, which enables designers to reduce the weight when designing products, and also makes this alloy have more price advantages than 3 16, 3 17L. This alloy is especially suitable for the temperature range of-50 F/+600 F. For applications beyond this temperature range, this alloy can also be considered, but there are some restrictions, especially when it is applied to welded structures.