439 Stainless Steel Properties

Stainless steel 439 does not require annealing after welding to restore ductility or provide intergranular.

439 stainless steel properties.

Aisi type 439 also known as astm xm 8 is a ferritic stainless steel designed to resist corrosion in a variety of oxidizing environments from fresh water to boiling acids. Due to its high chromium content corrosion resistance is much higher compared to type 409 in a variety of oxidizing environments from fresh water to boiling acids. Cited properties are appropriate for the annealed condition. The alloy resists intergranular corrosion and stress corrosion cracking.

The graph bars on the material properties cards below compare aisi 439 stainless steel to. Type 439 stainless steel is a ferritic stainless steel designed to resist corrosion in a variety of oxidizing environments from fresh water to boiling acids. Stainless steel grade 439 is capable of being made into complex shapes such as tubular manifolds and exhaust system components where temperatures tend to go beyond the oxidation limit of grade 409 steel. S43035 is the uns number.

It may be used in either the annealed cold formed or as welded condition in many applications where other stainless steel alloys such as type 304 type 410 type 409 and type 430are used. 439 high performance 10 439 ultra form stainless steel ak steel 439 is a ferritic stainless steel that outperforms type 409 in both oxidation resistance and corrosion resistance. Wrought ferritic stainless steels top all iron alloys middle and the entire database bottom. Ati 439 hp stainless steel is available as sheet and strip coil in the annealed condition with widths to 48 and thicknesses to 0 125.

Type 439 is a titanium stabilized 18 percent chromium alloy that may be used in many oxidizing environments where type 304 is considered adequate in terms of general. Type 439 is an 18 chromium titanium stabilized ferritic stainless steel with corrosion resistance similar to that of 304 304l stainless steel. Type 439 stainless steel is a titanium stabilized 17 to 18 chromium ferritic stainless steel with improved weldability. Ak steel 11 cr cb stainless steel and aluminized type 409 data are shown for comparison.

The ak steel 439 ultra form stainless steel samples at 1700 f 926 c gained 320 mg in 2 after 1000 cycles but were not determined as catastrophic failures. 316l is an austenitic stainless steel and 439 is a ferritic stainless steel. Tube or pipe products using ati 439 hp steel are available from tube pipe manufacturers. Type 439 is stabilized with a titanium addition resulting in good weldability.

This grade may be used in the annealed cold formed or as welded condition in applications where other stainless steels such as type 304 304l and type 430 are used. Figure 4 cyclic oxidation ak steel 439 ultra form stainless steel 1500 f 816 c. Introduction chemical composition mechanical properties other designations applications.