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stainless steel 444

The specific properties of stainless steel SUS444 will be introduced below:

The yield strength of stainless steel SUS444 is 1.5 times that of carbon steel and 6 times that of FRP. It has outstanding performance for shock resistance, snow resistance, wind pressure resistance and stamping resistance. 

SUS444 ferritic stainless steel has high thermal conductivity. 130%-150% of chrome-nickel austenitic stainless steel is very suitable for heat exchange applications. The coefficient of thermal expansion is small, and the squad is only 60%-70% of chrome-nickel austenitic stainless steel. It is very suitable for use under conditions of thermal expansion and contraction and thermal cycling without deformation. 

The steel has good plasticity and toughness and is suitable for stretching, forming and stamping. The steel grade is the most excellent in corrosion resistance. The corrosion resistance in high chloride media is superior to that of ordinary ferritic stainless steel and austenitic stainless steel, and it does not cause stress corrosion cracking of chloride. The steel can be welded by ordinary stainless steel, especially for food processing equipment, heat exchangers, hot water tanks, water storage tanks, solar collector panels, etc

Compared with other stainless steels, the steel is the only one that has magnetic properties. In view of this, the steel is not suitable for use in sensitive electronic equipment, electromagnetic equipment that is subject to electromagnetic waves and magnetic interference.




SUS444 (00Cr18Mo2) is an ultra-low carbon nitrogen, 18% chromium and 2% molybdenum, high corrosion resistant ferritic stainless steel.

The steel grade is generally stabilized with tantalum or titanium to avoid intergranular corrosion after welding. This steel grade is particularly suitable for use in a variety of water treatment plants.

●444(18-2) Chemical Composition :

 C:≤0.025

 Mn:≤1.00

 Si:≤1.00

 Cr:17.5~19.5

 Ni:≤1.00

 P:≤0.04

 S:≤0.03

 Mo:1.75~2.5

 N:≤0.035

 Ti+Nb:≥0.2+4(%C+%N)


Now compare SUS304 stainless steel with SUS444 stainless steel:


SUS304——0Cr18Ni9               SUS444——00Cr18Mo2

SUS304——Non-magnetic       SUS444——Magnetic

SUS304——Low carbon            SUS444——Super Low Carbon

SUS304——Good rust and corrosion resistance      

SUS444——Better rust and corrosion resistance

SUS304——Brighter surface             SUS444——Surface gloss

SUS304——Harmless to the human body, food grade      

SUS444——Harmless to the human body, food grade

SUS304—— Around 5.88 usd/kg      SUS444—— Around 4.4 usd/kg 


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