The difference between duplex stainless steel and ordinary steel: duplex stainless steel has the characteristics of austenitic stainless steel and ferritic stainless steel! In other words, it has the characteristics of stainless steel and carbon steel! Compared with ferrite, it has higher plasticity, toughness, no room temperature brittleness, resistance to intergranular corrosion and high weldability, ferritic stainless steel to maintain 475℃ high brittleness, high thermal conductivity, superplasticity. Compared with austenitic stainless steel, it has high strength, intergranular corrosion resistance and chloride stress corrosion resistance. Duplex stainless steel has excellent corrosion resistance and is also a nickel stainless steel.
2507 duplex stainless steel and 316 stainless steel difference?
2507 duplex stainless steel and 316 stainless steel are two different stainless steel materials. 316 stainless steel and 2507 duplex stainless steel are as follows:
1.2507 The yield strength of duplex stainless steel is more than twice that of 316 stainless steel, and the plastic toughness required for molding is enough, which is conducive to reducing costs.
2.2507 Duplex stainless steel has excellent resistance to stress corrosion cracking ability, especially in the Marine environment containing chloride ions, stress corrosion is a prominent problem that is difficult to solve austenitic stainless steel, including 316 stainless steel.
3.In many media, the corrosion resistance of 2507 duplex stainless steel is better than that of ordinary 316 stainless steel, because duplex stainless steel has high corrosion resistance, such as acetic acid, formic acid, etc., and can even replace austenitic stainless steel and even corrosion resistant alloys. However, 2507 duplex stainless steel or 316 stainless steel should be selected according to environmental needs and cost.
4.2507 duplex stainless steel has high strength, good local corrosion resistance, wear resistance, corrosion, fatigue performance is better than 316 stainless steel.
5.2507 duplex stainless steel linear expansion coefficient is lower than 316 stainless steel, close to carbon steel, suitable for carbon steel connection, has important engineering significance.
6.2507 duplex stainless steel has higher energy absorption capacity than 316 stainless steel under dynamic or static load conditions, and has obvious advantages and practical application value for structural parts or pipelines to deal with sudden collisions and explosions.
