UNS: S41008
EN-DIN: 1.4510
Printable PDF: 410S Stainless Steel Alloy Data Sheet
410S Stainless Steel is a non-hardening modification of Type 410. A small aluminum addition minimizes austenite formation at high temperatures, thereby restricting the alloy’s ability to harden. The result is a soft, ductile condition when the material is rapidly cooled from above the critical temperature. This non-hardening characteristic also retards formation of hardening cracks when the steel is welded. The alloy is completely ferritic in the annealed condition.
Nominal Composition
| C: | 0.080 max |
| Mn: | 1.0 max |
| P: | 0.040 max |
| S: | 0.030 max |
| Si: | 1.00 max |
| Cr: | 11.50 – 13.50 |
| Ni: | 0.60 max |
| Ti: | 0.20 max |
| Fe: | BAL |
Physical Properties
At 70°F (At 20°C)
Density
0.280 lb./in³ / (7.73 kg/m³)
Modulus of Elasticity (E)
29.0 x 10³ ksi / (200 x 10³MPa)
Coefficient of Expansion
9.6 x 10-6 microinches/in.-°F (32-212°F) / (17.3 μm/m-°C) (0-100°C)
Electrical Resistivity
23.7 μ ohm.in / (60.0 μ ohm.cm)
Thermal Conductivity
15.6 Btu-in./ft.²hr.-°F (100°C)/ (26.9 W/m-K) (100°C)
Applicable Specifications
ASTM A240
Typical Mechanical Properties – Typical Room Temperature Mechanical Properties
Typical mechanical properties are based on AK source, ASTM A240
Condition
Annealed
Tensile Strength (UTS)
65 ksi (448 MPa)
0.2% YS
40 ksi (276 MPa)
Elongation% in 2” (50.8 mm)
25%
Hardness Rockwell
75 HRBW
**The information and data in this product data sheet are accurate to the best of our knowledge and belief, but are intended for general information only. Applications suggested for the materials are described only to help readers make their own evaluations and decisions, and are neither guarantees nor to be construed as express or implied warranties of suitability for these or other applications. Data was obtained from our melt sources with data referring to mechanical properties and chemical analyses are the result of tests performed on specimens obtained from specific locations with prescribed sampling procedures; any warranty thereof is limited to the values obtained at such locations and by such procedures. There is no warranty with respect to values of the materials at other locations. Further information should be sought from the melt sources.
Additional Information on 410s Stainless Steel
Alloy 410 stainless steel is a martensitic stainless steel grade routinely supplied in a hardened condition where high strength and moderate heat and corrosion resistance are required. 410S stainless steel is a low Carbon, non-hardening modification of Alloy 410 stainless.
Low Carbon plus a small amount of Titanium and/or Niobium minimize austenite formation at high temperatures restricting the ability for the alloy to harden. This keeps 410S soft and ductile even when cooled from above at critical temperature.
The non-hardening property helps to prevent cracking when the alloy is exposed to high temperatures or when welded.
410S is completely ferritic in the annealed condition, which means it has a body-centered cubic crystal making it less ductile than austenitic steel. It is used mainly for household utensils and other applications that do not demand high anti-corrosion properties. 410S has adequate corrosion resistance, much like 410, and good oxidation resistance.
410S is annealed, or softened, to make it less brittle. This is done by heating it to between 1600 – 1650°F (871 – 899°C), then air cooling it slowly at room temperature to relieve cold-working stresses.
Sometimes, if excessive large grains are encountered after annealing mildly cold-worked material, the annealing temperature should be decreased to a range of 1200 – 1350°F (649 – 732°C) range. However, it should never be increased to 2000°F (1093°C) or above due to embrittlement, which is the partial or complete loss of the material’s ductility, the opposite of the desired result of annealing 410S.
For maximum corrosion resistance to chemical environments, the 410S surface should be free of all heat tint or oxide formed during the annealing or hot working process. It is essential that all traces of oxide and surface decarburization be removed by grounding or polishing all surfaces. Afterwards, parts are immersed in a 10% to 20% nitric acid solution followed by a water rinse. This is to ensure the removal of any residual Iron.
After this step, stainless steel 410S parts are generally considered able to undergo welding by common fusion and resistance techniques, though special attention is paid in order to avoid brittle weld fractures during fabrication and to minimize discontinuities.
The main difference between stainless steel 410 and 410S is that 410 is a basic, general purpose, martensitic stainless steel that can be hardened whereas 410S is a lower Carbon modification of 410 stainless steel, more easily welded but possessing reduced mechanical properties. 410S stainless steel can be easily formed by drawing, spinning, bending, and roll forming.
The corrosion resistance of ESM’s 410S stainless steel is similar to type 410. It resists corrosion in atmospheric conditions, fresh water, mild organic, and mineral acids, alkalis, and some chemicals. It requires proper cleaning after being used in order to continue performing at peak or near-peak levels after exposure to chlorides in everyday activities like food preparation or sports activities.
Type 410S stainless steel has unique properties and chemical composition, which makes it useful in a variety of applications across a large range of critical industries including:
- Petroleum refining and petrochemical processing – specifically columns, distillation trays, heat exchangers, and towers
- Ore processing – specifically mining machinery
- Thermal processing – specifically annealing boxes, partitions, and quenching racks
- Gate valves, and
- Press plates.
Applications using 410S Chromium ferritic stainless steel have considerably increased in recent years in chemical industries as well as oil or gas transportation industries. Experiments to determine phase transformation temperatures are ongoing to determine the alpha to gamma transformation temperatures for this alloy in different cooling conditions. Results will determine how 410S can be best used in these industries.
The unique properties and chemical composition of Type 410S also makes it useful for a variety of applications in a large range of critical industries including:
- Petroleum refining
- Petrochemical processing
- Thermal processing
- Gate valves
- Press plates
- Heat exchangers
- Ore processing and mining machinery
ESM supplies Type 410S stainless steel alloy in a number of different forms and sizes all of which meet some of the toughest international standards including, ASTM A 240 and ASME SA 240.
The ESM-Hampshire mill is one of the foremost stainless steel re-roll mills in the industry when it comes to delivering high-quality products on time at competitive prices. Even when the order has a short lead time, our customers know that they can count on us for reliable delivery of excellent light gauge stainless steel strip produced to precision thickness and widths in accordance with our customers’ specifications.
