Stainless Steel, Martensitic
410 Stainless Steel (S41000) Bar
A general purpose martensitic stainless steel containing 11.5% chromium for good atmospheric corrosion resistance.
Grade 410 (1.4006) is a hardenable martensitic stainless steel available in bar form only.
410 stainless steel is a martensitic stainless steel known for its high strength, moderate corrosion resistance, and good wear resistance. It is part of the 400 series of stainless steels and is widely used in applications that require strength, hardness, and moderate corrosion protection.
The corrosion resistance of grade 410 steels can be further enhanced by a series of processes such as hardening, tempering and polishing. Quenching and tempering can harden grade 410 steels. They are generally used for applications involving mild corrosion, heat resistance and high strength.
Martensitic stainless steels are fabricated using techniques that require final heat treatment. These grades are less resistant to corrosion when compared to that of austenitic grades. Their operating temperatures are often affected by their loss of strength at high temperatures, due to over-tempering and loss of ductility at sub-zero temperatures.
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410 Stainless Steel Related Specifications
| System / Standard | Country / Region | Grade / Designation |
| AISI | USA | 410 |
| UNS | International | S41000 |
| EN / W.Nr. | Europe | 1.4006 |
| EN Name | Europe | X12Cr13 |
| ASTM A240 | USA | 410 (plate, sheet, strip) |
| ASTM A276 | USA | 410 (bars, shapes) |
| ASTM A314 | USA | 410 (forged bars for piping) |
| ASTM A743 | USA | CA-15 (cast 410-type) |
| ASTM A182 | USA | F6a (410-type forging) |
| GB | China | 12Cr13 / 1Cr13 |
| JIS | Japan | SUS410 |
| BS | UK | 410S21 |
Properties
Chemical Composition
1.4006 Steel
EN 10088-3
| Chemical Element | % Present |
| Carbon (C) | 0.08 - 0.15 |
| Chromium (Cr) | 11.50 - 13.50 |
| Silicon (Si) | 0.00 - 1.00 |
| Manganese (Mn) | 0.00 - 1.50 |
| Phosphorous (P) | 0.00 - 0.04 |
| Sulphur (S) | 0.00 - 0.02 |
| Nickel (Ni) | 0.00 - 0.75 |
| Iron (Fe) | Balance |
Mechanical Properties
Bar Up to 160mm Dia or Thickness
EN 10088-3
| Mechanical Property | Value |
| Proof Stress | 450 Min MPa |
| Tensile Strength | 650 - 850 MPa |
| Elongation A | 15 Min % |
General Physical Properties
| Physical Property | Value |
| Density | 7.75 g/cm³ |
| Thermal Expansion | 9.9 x 10-6/K |
| Modulus of Elasticity | 300 GPa |
| Thermal Conductivity | 24.9 W/m.K |
| Electrical Resistivity | 0.57 x 10-6 Ω .m |
Applications of 410 Stainless Steel
410 stainless steel is a martensitic stainless steel known for its high strength, moderate corrosion resistance, and good wear resistance. Its heat-treatable nature makes it suitable for components that require hardness, durability, and moderate corrosion protection.
1. Industrial Applications
Valves and pumps: Components subjected to mechanical wear and moderate corrosive environments.
Industrial machinery parts: Shafts, fasteners, and gears requiring strength and wear resistance.
Cutlery and blades: Knives, scissors, and other tools where hardness is essential.
2. Automotive Applications
Engine components: Shafts, spindles, and fasteners.
Transmission parts: Components requiring wear resistance and strength.
3. General Applications
Architectural hardware: Handles, hinges, and decorative elements.
Household appliances: Components exposed to mild corrosion and mechanical stress.
Summary
410 stainless steel is widely used in industrial, automotive, and household applications where a combination of strength, wear resistance, and moderate corrosion resistance is required. Its martensitic structure allows heat treatment to optimize hardness and durability for various applications.
Characteristics of 410 Stainless Steel
410 stainless steel is a martensitic stainless steel known for its high strength, moderate corrosion resistance, and good wear resistance. It is widely used in applications where hardness and durability are important.
1. Mechanical Properties
High strength and hardness: Can be heat treated to achieve desired mechanical properties.
Good wear resistance: Suitable for components subjected to friction and mechanical stress.
2. Corrosion Resistance
Moderate resistance to oxidation and corrosion in mildly corrosive environments.
Less corrosion-resistant than austenitic or ferritic stainless steels.
3. Fabrication
Can be machined and formed, but work hardens rapidly.
Heat treatment improves hardness and strength but is necessary for certain mechanical applications.
4. Magnetic Properties
Exhibits ferromagnetism due to its martensitic structure.
5. Applications
Cutlery and knives
Shafts, fasteners, and gears in industrial machinery
Automotive components such as engine and transmission parts
Valves, pumps, and architectural hardware
Summary
410 stainless steel is a martensitic stainless steel offering strength, hardness, and moderate corrosion resistance. Its heat-treatable and wear-resistant properties make it suitable for cutlery, automotive, industrial, and mechanical applications.
Additional Information
Fabrication
Fabrication of 410 Stainless Steel
410 stainless steel is a martensitic stainless steel known for its high strength, moderate corrosion resistance, and good wear resistance. Its properties allow it to be fabricated into a variety of components using standard forming, machining, and joining techniques.
1. Forming
Cold Working:
Can be bent, drawn, or rolled, but work hardens quickly.
Intermediate annealing is recommended for extensive deformation to restore ductility.
Hot Working:
Recommended temperature range: 980–1120°C (1800–2050°F).
Suitable for forging, hot rolling, or extrusion to shape thick or complex parts.
2. Machining
Machinable with high-speed steel (HSS) or carbide tools.
Cutting fluids are recommended to reduce heat and tool wear.
Sharp tooling and controlled speeds improve surface finish and dimensional accuracy.
3. Welding
Weldable using conventional methods such as TIG, MIG, or SMAW.
Preheating (150–300°C / 300–570°F) and post-weld tempering are recommended for thicker sections.
Filler metals matching 410 or compatible martensitic stainless steels are preferred.
4. Heat Treatment
Can be annealed, hardened, and tempered to optimize strength, hardness, and ductility.
Stress relief after machining or welding improves dimensional stability.
5. Applications Related to Fabrication
Cutlery, knives, and kitchen tools
Shafts, fasteners, and gears in industrial machinery
Automotive components such as engine and transmission parts
Valves, pumps, and architectural hardware
Summary
410 stainless steel is highly fabricable, with good cold and hot working properties, machinability, weldability, and heat-treatable characteristics. Proper fabrication techniques allow the production of durable, high-strength, and wear-resistant components suitable for industrial, automotive, and household applications.
Weldability
Weldability of 410 Stainless Steel
410 stainless steel is a martensitic stainless steel known for its high strength, moderate corrosion resistance, and good wear resistance. Welding 410 requires care due to its martensitic structure and carbon content, which can increase the risk of cracking and reduce corrosion resistance in the heat-affected zone.
1. Suitable Welding Methods
TIG (GTAW): Provides precise, high-quality welds.
MIG (GMAW): Suitable for faster production.
SMAW (Stick Welding): Common for general fabrication.
2. Welding Considerations
Preheating (150–300°C / 300–570°F) is recommended for thicker sections to reduce thermal stress.
Post-weld tempering helps restore ductility, toughness, and corrosion resistance.
Filler metals should match the 410 grade or a compatible martensitic stainless steel to maintain properties.
3. Limitations
High carbon content increases risk of intergranular cracking and reduced corrosion resistance in the weld zone.
Not recommended for environments with high chloride exposure unless post-weld treatment is applied.
4. Applications Related to Weldability
Valves, pumps, and fittings requiring welded assemblies
Shafts, fasteners, and industrial machinery components
Automotive parts exposed to mild corrosion and stress
Summary
410 stainless steel is weldable, but its martensitic structure and carbon content necessitate controlled preheating, proper filler selection, and post-weld tempering. Following these precautions ensures strong, durable, and moderately corrosion-resistant welds suitable for industrial, automotive, and precision applications.
Machinability
Machinability of 410 Stainless Steel
410 stainless steel is a martensitic stainless steel known for its high strength, moderate corrosion resistance, and good wear resistance. Its machinability is moderate compared to austenitic stainless steels but can be improved with proper tooling and techniques.
1. Key Machining Characteristics
Moderate machinability: Easier to machine than many other martensitic stainless steels.
Can achieve good surface finish and dimensional accuracy with appropriate tools and conditions.
Work hardens moderately, requiring attention to cutting speed and feed rate.
2. Tooling Recommendations
High-speed steel (HSS) or carbide tools are recommended for efficient machining.
Use cutting fluids to reduce heat, improve tool life, and maintain surface quality.
Sharp tools and proper speeds help minimize work hardening.
3. Machining Considerations
Suitable for turning, milling, drilling, and tapping.
Controlled speeds and feeds are essential to avoid excessive tool wear or surface hardening.
Post-machining stress relief or tempering may be applied for high-strength or high-wear applications.
4. Applications Related to Machinability
Shafts, fasteners, and gears in industrial machinery
Automotive components requiring precise tolerances
Valves, pumps, and fittings
Cutlery and knives
Summary
410 stainless steel has moderate machinability, allowing effective turning, milling, drilling, and tapping with proper tooling and conditions. Combined with its strength, wear resistance, and moderate corrosion resistance, it is suitable for industrial, automotive, and household components.
Corrosion Resistance
Corrosion Resistance of 410 Stainless Steel
410 stainless steel is a martensitic stainless steel with moderate corrosion resistance. It is suitable for environments where mechanical strength and wear resistance are important, but it is not intended for highly corrosive or chloride-rich conditions.
1. General Corrosion Resistance
Resists oxidation and mild corrosion in air, water, and mildly corrosive atmospheres.
Performance is lower than austenitic stainless steels (e.g., 304, 316).
Corrosion resistance can be enhanced by proper surface finishing, passivation, or coating.
2. Stress Corrosion and Chloride Sensitivity
Moderate resistance to stress corrosion cracking.
Susceptible to pitting and crevice corrosion in chloride-containing environments.
3. Effects of Heat Treatment and Welding
Heat treatment, such as tempering, can improve mechanical properties while maintaining moderate corrosion resistance.
Welding may reduce corrosion resistance in the heat-affected zone if post-weld tempering or passivation is not applied.
4. Applications Related to Corrosion Resistance
Cutlery and knives exposed to mild moisture
Shafts, fasteners, and gears in industrial machinery
Automotive components in moderately corrosive environments
Valves, pumps, and architectural hardware
Summary
410 stainless steel provides moderate corrosion resistance, suitable for mildly corrosive environments. When combined with its strength, wear resistance, and heat-treatable properties, it is ideal for industrial, automotive, and household components that do not face aggressive corrosion conditions.
Cold Working
Cold Working of 410 Stainless Steel
410 stainless steel is a martensitic stainless steel with high strength, moderate corrosion resistance, and good wear resistance. It can be cold worked to form components, but care must be taken due to its work-hardening tendency.
1. Cold Working Processes
Bending and Forming: Can be bent into shapes for industrial, automotive, and household components.
Rolling: Suitable for producing sheets, strips, and bars.
Drawing and Stamping: Allows creation of precision parts and complex shapes.
Punching and Shearing: Components requiring precise cutting can be fabricated efficiently.
2. Work Hardening
410 stainless steel work hardens moderately during cold working.
Excessive deformation may require intermediate annealing to restore ductility.
Cold working increases strength and hardness while reducing ductility.
3. Fabrication Considerations
Use gradual deformation to prevent cracking or distortion.
Proper tooling and lubrication ensure smooth forming and minimize surface defects.
Cold-worked components may benefit from stress-relief heat treatment before service, especially in high-stress applications.
4. Applications Related to Cold Working
Cutlery and knives
Shafts, fasteners, and gears in industrial machinery
Automotive components
Valves, pumps, and fittings requiring dimensional accuracy and mechanical strength
Summary
410 stainless steel exhibits good cold working properties, allowing bending, rolling, drawing, stamping, and punching. Cold working improves strength and hardness but may require stress relief or intermediate annealing for extensive deformation. This makes 410 stainless steel suitable for industrial, automotive, and household components.
Heat Treatment
Heat Treatment of 410 Stainless Steel
410 stainless steel is a martensitic stainless steel with high strength, moderate corrosion resistance, and good wear resistance. Heat treatment is used to optimize hardness, strength, ductility, and toughness for industrial, automotive, and household applications.
1. Annealing
Purpose: Relieve internal stresses and restore ductility after cold working or machining.
Temperature range: 800–850°C (1475–1560°F)
Cooling: Slow furnace cooling for maximum softness and ductility.
2. Hardening (Quenching)
Purpose: Increase hardness and tensile strength for wear-resistant applications.
Temperature range: 980–1050°C (1800–1920°F)
Cooling: Rapid quenching in oil or air, depending on thickness and desired properties.
3. Tempering
Purpose: Reduce brittleness after hardening and improve toughness.
Temperature range: 150–370°C (300–700°F)
Adjusts the balance of hardness, strength, and ductility for service requirements.
4. Stress Relief
Applied to machined or welded parts to minimize residual stresses.
Typically done at 425–650°C (800–1200°F) for moderate durations.
5. Applications Related to Heat Treatment
Cutlery and knives
Shafts, fasteners, and gears in industrial machinery
Automotive components such as engine and transmission parts
Valves, pumps, and architectural hardware
Summary
410 stainless steel can be annealed, hardened, tempered, and stress-relieved to achieve the desired combination of hardness, strength, and ductility. Proper heat treatment ensures durable, wear-resistant, and dimensionally stable components suitable for industrial, automotive, and household applications.
Heat Resistance
Heat Resistance of 410 Stainless Steel
410 stainless steel is a martensitic stainless steel with high strength, moderate corrosion resistance, and good wear resistance. Its heat resistance is moderate, making it suitable for intermittent or mild high-temperature applications, but it is not designed for prolonged exposure to extreme heat.
1. Continuous Service Temperature
Suitable for continuous service up to approximately 425°C (800°F).
Retains moderate strength and hardness at elevated temperatures.
2. Intermittent Exposure
Can tolerate short-term exposure up to 760°C (1400°F).
Prolonged exposure above recommended temperatures can result in loss of hardness, strength, and corrosion resistance.
3. Oxidation Resistance
Forms a thin chromium oxide layer that provides limited protection against oxidation.
Not suitable for high-temperature, aggressive oxidizing environments.
4. Applications Related to Heat Resistance
Cutlery and knives exposed to heat
Industrial components with moderate thermal exposure
Automotive parts such as engine and transmission components
Valves, pumps, and fittings in mildly elevated temperature conditions
Summary
410 stainless steel provides moderate heat resistance, suitable for applications with intermittent or mild elevated temperatures. Combined with its strength, wear resistance, and heat-treatable properties, it is ideal for industrial, automotive, and household components that do not require prolonged exposure to high heat.
Hot Working
Hot Working of 410 Stainless Steel
410 stainless steel is a martensitic stainless steel known for its high strength, moderate corrosion resistance, and good wear resistance. Hot working allows shaping and forming of components while minimizing the risk of cracking and improving ductility.
1. Recommended Hot Working Temperature
Optimal temperature range: 980–1120°C (1800–2050°F)
Working above this range may cause grain growth, reducing mechanical properties.
Working below this range can increase the risk of cracking due to the martensitic structure.
2. Hot Working Processes
Forging: Suitable for shafts, gears, and thick components.
Hot Rolling: Used for producing sheets, strips, and bars.
Extrusion: Allows shaping of rods, bars, and complex profiles.
Hot Forming and Pressing: Enables production of large or intricate parts with minimal work hardening.
3. Advantages of Hot Working
Reduces work hardening compared to cold working.
Improves ductility and toughness, facilitating easier shaping.
Produces components with uniform mechanical properties.
4. Post-Hot Working Treatment
Annealing may be applied to relieve residual stresses and restore ductility.
Pickling or passivation can enhance surface corrosion resistance if scale forms during hot working.
5. Applications Related to Hot Working
Industrial machinery components
Automotive parts requiring forging or extrusion
Shafts, gears, and precision components that require uniform mechanical properties
Summary
410 stainless steel exhibits good hot working properties, allowing forging, rolling, extrusion, and hot forming at 980–1120°C. Hot working improves ductility, reduces work hardening, and ensures uniform mechanical properties, making 410 stainless steel suitable for industrial, automotive, and precision components.
