1. Stainless Steel 410s Pipe Oxidation Resistance:

• Good oxidation resistance.
• Can be used in continuous service up to 1300°F (705°C).
• Scaling becomes excessive above 1500°F (811°C) in intermittent service.

2. Stainless Steel 410s Pipe Corrosion Resistance:

• Corrosion resistance of 410S stainless steel is similar to type 410.
• Resists corrosion in atmospheric conditions, fresh water, mild organic and mineral acids, alkalis and some chemicals.
• Exposure to chlorides in everyday activities (e.g., food preparation, sports activities, etc.) is satisfactory when proper cleaning is performed after exposure to use.

3. Stainless Steel 410s Pipe Heat Treatment:

The alloy can not be hardened by heat treatment. It is annealed between 1600 – 1650°F (871 – 899°C), and then air cooled to relieve cold working stresses. 410S should not be exposed to temperatures above 2000°F (1093°C), due to embrittlement. If large grains are found after annealing mildly cold-worked material, the annealing temperature should be decreased to 1200 – 1350°F (649 – 732°C).

4. Stainless Steel 410s Pipe Welding:

410S is generally considered to be weldable by the common fusion and resistance techniques. Special attention should be given to avoid brittle weld fractures during fabrication; this includes minimizing discontinuities, maintaining low weld heat input, and occasionally warming the part somewhat before forming. 410S is generally considered to have slightly poorer weldability than the most common ferritic stainless steel grade 409. A major difference can be attributed to the addition of alloy, to control hardening which results in the need for higher heat input during welding.