Knowledge

Under normal circumstances, the ferrite content in austenitic stainless steel is 50%-60%, while the ferrite content in duplex stainless steel is higher, up to more than 75%.

Duplex stainless steel is called "duplex" because its metallographic microstructure consists of two stainless steel grains, ferrite and austenite.

2205 duplex stainless steel is a duplex stainless steel composed of 22% chromium, 3% molybdenum and 5-6% nickel nitrogen.

High molybdenum super austenite with excellent resistance to chloride pitting, crevice corrosion and stress corrosion cracking.

2205 is a 22% Cr duplex stainless steel supplied in the solution annealed condition with improved machinability as standard.

Semi-martensitic stainless steel has high strength and toughness after quenching and tempering, and has good corrosion resistance and machining performance in weakly corrosive media with a temperature

Mechanical properties: Tensile strength: σb≥655Mpa, Yield strength σb≥310Mpa: Elongation: δ≥35%, Hardness: 182-223 (HB) Corrosion resistance and main use environment: 254SMO stainless steel is a high

Many people will have questions about the three materials of Incoloy 800H, 800, and 800HT. As everyone guessed, these three materials are the ordinary version, the advanced version and the advanced ve

The Cr content in 800 alloy is usually 15-25%, the nickel content is 30-45%, and contains small amounts of aluminum and titanium.

347H is the American standard ASTM executive standard steel grade.

When brown rust spots (dots) appear on the surface of stainless steel pipes, people are surprised and think that "stainless steel does not rust. If it gets rusty, it is no longer stainless steel. Ther

Duplex stainless steels are becoming more and more widely used, and users are becoming more and more familiar with this type of stainless steel. This article focuses on one of the difficulties in the