Ferritic SS 410
SS 410 is martensitic stainless steel with a body-centered tetragonal (BCT) crystal structure and low carbon content. Stainless steel 410 has high hardenability due to its nickel, cobalt and copper content which stabilize austenite and helps martensitic transformation.
SS 410 Chemical composition
| Grade | Ni | Cr | Si | C | Mn | S | P | |
|---|---|---|---|---|---|---|---|---|
| SS 410 | Min | – | 11.5 | – | 0.08 | – | – | – |
| Max | 0.75 | 13.5 | 1 | 0.15 | 1 | 0.03 | 0.04 |
SS 410 chemical composition is special due to the 11.5% to 13.5% content of chromium which makes it resistant to corrosion. But the corrosion resistive properties of stainless steel 410 can be enhanced further by various processes like tempering, hardening, and polishing.
Is 410 ss magnetic?
Yes, SS 410 is magnetic in both the annealed and hardened conditions.
Physical properties of stainless steel 410
| Grade | Density (g/cm3) | Elastic Modulus (GPa) | Mean Co-eff of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat ( J/Kg.K) | Electrical Resistivity (μΩ.m) | |||
|---|---|---|---|---|---|---|---|---|---|
| SS 410 | 7.8 | 200 | 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | 0-100°C | 570 |
| 9.9 | 11 | 11.5 | 24.9 | 28.7 | 460 | ||||
SS 410 is a martensitic alloy widely supplied in the hardened but still stays in machinable condition. Stainless steel 410 has excellent hardness after treated with heat and the material can be used in the fabrication of extremely stressed parts.
Martensitic alloy 410 stainless steel is fabricated with many techniques that require a final process of heat treatment. Grade 410 steel can be easily machined in extreme tempered or annealed conditions and further quenching and tempering can harden grade 410 stainless steel.
SS 410 Heat Treatment
At temperatures ranging from 815 °C to 900 °C, grade 410 stainless steel can be completely annealed, and further, slow furnace cooling and air-cooling are necessary. Process annealing of SS 410 can be worked out at temperatures ranging from 650 °C to 760 °C followed by air-cooling. Grade 410 stainless steel is good scaling resistant at a temperature maximum of 650 °C. But, the mechanical characteristics of the material may reduce at temperatures ranging from 400 to 580 °C.
Stainless steel 410 can undergo hardening processes at temperatures ranging from 925 °C to 1010 °C, and further air and oil quenching are needed. To improve the mechanical properties and hardness of 410 stainless steel, followed by the tempering process. It is not advised to work tempering at temperatures ranging from 400 °C to 580 °C.
SS 410 Specifications
| GRADE | UNS | OLD BRITISH | EURONORM | SWEDISH SS | JAPANESE JIS | ||
|---|---|---|---|---|---|---|---|
| SS 410 | S41000 | BS | EN | NO | NAME | 2302 | SUS 410 |
| 410S21 | 56A | 1.4006 | X12Cr13 | ||||
410 stainless steel can be welded using all conventional techniques of welding, but the materials have to be preheated at temperatures like 150 °C to 260 °C and after which, annealing treatment needs to be done to mitigate cracking. SS 410 is good weldable and can be readily joined with fusion and resistance welding methods.
410 stainless steel properties are enhanced with 11.5% to 13.5 % chromium content and 0.12% carbon content which has made it emerge as a low-cost option for applications that combine good mechanical strength and resistance to corrosion.
410 stainless steel properties are suitable in applications like:
- Oil and natural gas extraction
- Turbine blades
- Compressors
- Rods, valves, shafts, and bearings.
SS 410 grade is resistant to steam, hot gases, mild acids, food and alkalis, freshwater, and dry air. 410 stainless steel gets its maximum corrosion and heat resistance through hardening. It is also commonly used for applications where mild corrosion can be subject to the material, heat resistance and high strength.