Product brief introduction

SUS444 steel belongs to high alloy ferritic stainless steel, compared with common steel grade SUS430:1. The high chromium content about 1.0%, and added alloying elements molybdenum (Mo), so the steel has good resistance to pitting corrosion, crevice corrosion, stress corrosion, the corrosion resistant ability in some areas even better than that of SUS304 SUS316.
2. Add the titanium (Ti), niobium (Nb), the stabilizing element such as zirconium (Zr), so the steel has good resistance to intercrystalline corrosion and high temperature oxidation resistance.

Product Parameter

Standard：GB/T（China）；JIS（Japan）
Brand：Ocr18Mo2Nb（China）；SUS444（Japan）
Element：（≤）
C：≤0.025
Si：≤1.00
Mn：≤1.00
P：≤0.03
S：≤0.03
Cr：17.00-2.00
Ni：-
Mo：1.75-2.50
N：≤0.025
Remain：Ti/Nb/Zr or 8（C+N）~0.8

Technical Equipment

SUS444Is the most heat-resistant steel, ferritic steel within 1000 ℃ high temperature oxidation resistance is good, on the contrary, the water temperature reached 304 most susceptible to corrosion between 50-90 degrees.