Stainless steel grade 441 Stainless steel grade 441 is a ferritic stainless steel containing niobium that provides the steel good oxidation resistance upto 950 degree Celsius and better corrosion resistance than grade 1.4512(409).441 provides good high-temperature strength in exhaust gas environments, 441 has good for deep drawing, 441 shows Good ductility , brightness and weldability,441 polishes well.The 441 flat rolled stainless steel possesses magnetic quality in all conditions Type 1.4509 can be referred to as a 'Super-Ferritic' Like all ferritic grades, 1.4509 is not susceptible to stress corrosion cracking. Titanium and/or niobium alloying reduces sensitivity to intergranular corrosion. Its relatively high chromium content also improves its resistance to crevice corrosion. Type 1.4509 spans both of these two areas since it was developed for a particular range of applications in certain industries where it can be used in place of type 1.4301 (304). On some aspects, its properties and performance in service are actually superior to 304 whilst on others it falls between 430 and 304. Notably however, it is also lower cost than 304.
Applications:
Catering & appliance
wall panels and claddings
elevator doors and frames
exhaust system parts
heat exhangers
Corrosion resistance
Automotive exhaust manifolds, pipes and catalytic converters
Architectural indoor applications like elevators and door frames
The main target sector is catering equipment to replace grade 304 heat exchangers.