SUS410L Ferritic Stainless Steel Plate/Coil
SUS410L Ferritic Stainless Steel Plate/Coil: Chemical, Mechanical & Thermal Data
Comprehensive technical data for SUS410L stainless steel plate/coil including chemical composition, mechanical properties, physical properties, equivalent grades, and typical applications.
Hot rolling, cold rolling, annealing, pickling, forming, welding, cutting
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SUS410L Ferritic Stainless Steel Plate/Coil Introduction
SUS410L is a low-carbon, 13% chromium ferritic stainless steel standardized under Japanese Industrial Standard JIS G4304/G4305. It is not an austenitic grade, despite some listings; its ferritic microstructure provides good resistance to atmospheric corrosion, organic acids, and oxidizing media. The extremely low carbon content (≤0.03%) minimizes the risk of sensitization during welding, allowing it to be used in as-welded conditions without post-weld heat treatment.
- Key features: excellent weldability, moderate strength, good formability, and high thermal conductivity compared to austenitic stainless steels.
- Magnetic: ferritic structure is inherently magnetic.
- Delivery conditions: typically supplied in annealed condition as plates and coils, with a surface finish of No.1, 2B, or 2D.
- Typical industries include automotive exhaust systems, heat exchangers, kitchenware, and architectural applications where corrosion resistance and cost-effectiveness are required.
SUS410L Ferritic Stainless Steel Plate/Coil Chemical Composition
The nominal chemical composition specified in JIS G4305 for SUS410L. All values are weight percent maximum unless a range is indicated. The low carbon content ensures ferritic stability and improves weldability, while chromium provides corrosion resistance. No intentional nickel addition is required.
| Element | Standard Value (%) | Remarks |
|---|---|---|
| Carbon (C) | ≤0.03 | Low carbon for weldability |
| Silicon (Si) | ≤1.00 | |
| Manganese (Mn) | ≤1.00 | |
| Phosphorus (P) | ≤0.040 | |
| Sulfur (S) | ≤0.030 | |
| Chromium (Cr) | 11.00 - 13.50 | Main corrosion resistance element |
| Nickel (Ni) | ≤0.60 | Incidental, not required |
| Nitrogen (N) | ≤0.03 | May be present |
SUS410L Ferritic Stainless Steel Plate/Coil Thermal and Electrical Physical Properties
Representative physical properties of SUS410L ferritic stainless steel at room temperature unless indicated otherwise. Data are typical values and may vary slightly depending on processing conditions. The ferritic structure confers higher thermal conductivity and lower thermal expansion than austenitic grades.
| Property | Typical Value | Unit | Test Condition |
|---|---|---|---|
| Density (ρ) | 7.75 | g/cm³ | At 20°C |
| Elastic Modulus (E) | 200 | GPa | At 20°C |
| Shear Modulus (G) | 78 | GPa | At 20°C |
| Poisson's Ratio (ν) | 0.28 | - | At 20°C |
| Thermal Expansion Coefficient (α) | 10.4 | 10⁻⁶/K | 20-100°C |
| Thermal Expansion Coefficient (α) | 11.0 | 10⁻⁶/K | 20-300°C |
| Thermal Expansion Coefficient (α) | 11.3 | 10⁻⁶/K | 20-500°C |
| Thermal Conductivity (λ) | 30.0 | W/(m·K) | At 100°C |
| Thermal Conductivity (λ) | 26.0 | W/(m·K) | At 500°C |
| Specific Heat Capacity | 460 | J/(kg·K) | At 20°C |
| Electrical Resistivity (ρ_e) | 0.60 | µΩ·m | At 20°C |
SUS410L Ferritic Stainless Steel Plate/Coil Mechanical Properties
Mechanical properties for SUS410L plates and coils as per JIS G4304/G4305 in the annealed condition. Tensile testing is performed at room temperature. The values are minimum requirements unless stated otherwise. Elongation depends on the product thickness.
| Property | Standard Value | Unit | Test Condition |
|---|---|---|---|
| Yield Strength (ReH) | ≥195 | MPa | Room temperature, 0.2% offset |
| Tensile Strength (Rm) | ≥360 | MPa | Room temperature |
| Elongation (A) | ≥22 (thickness ≤0.3 mm) | % | Gauge length 50 mm |
| Elongation (A) | ≥22 (thickness 0.3-1.0 mm) | % | Gauge length 50 mm |
| Elongation (A) | ≥22 (thickness 1.0-3.0 mm) | % | Gauge length 50 mm |
| Elongation (A) | ≥20 (thickness 3.0-6.0 mm) | % | Gauge length 50 mm |
| Elongation (A) | ≥18 (thickness 6.0-20.0 mm) | % | Gauge length 50 mm |
| Hardness (HV) | ≤200 | HV | Vickers hardness |
| Hardness (HRB) | ≤90 | HRB | Rockwell B hardness |
| Bend Test (Bend Angle 180°) | D=1.0t (thickness ≤3 mm) | - | Inner diameter D, t = thickness |
SUS410L Ferritic Stainless Steel Plate/Coil Fully Equivalent Material Standards and Substitute Grades
| Country/Region | Standard | Grade | Remarks |
|---|---|---|---|
| Japan | JIS G4304/G4305 | SUS410L | Original designation, ferritic stainless steel |
| China | GB/T 20878 | 022Cr12 (S11203) | Close match, C≤0.03, Cr 11.00-13.00 |
| China | GB/T 4237 | 022Cr12 | Hot-rolled plate/coil specification |
| USA | ASTM A240 | S41008 | UNS designation, limits for C, Si, Mn, P, S, Cr match closely |
| International | ISO 15510 | X2Cr12 | Standard composition corresponds to SUS410L |
SUS410L Ferritic Stainless Steel Plate/Coil Application Introduction
SUS410L is widely used where a combination of moderate corrosion resistance, good formability, and low cost is required. It is particularly suited for welding-intensive applications. The ferritic structure avoids stress-corrosion cracking typical of austenitic grades.
- Key advantages: magnetic, high thermal conductivity, low thermal expansion, and eco-friendly (nickel-free).
- Limitations: limited toughness at low temperatures and lower corrosion resistance than 300-series grades.
Product Applications: Cold-rolled sheet for pressed parts, Hot-rolled plate for welded structures, Coil for roll-formed sections, Welded tubing for exhaust systems
Processed into products: Automotive exhaust flanges, Heat exchanger fins and tube plates, Washing machine drum supports, Structural brackets in corrosive atmospheres, Kitchen sink supports and mounting frames
Application industries: Automotive: exhaust manifolds, mufflers, catalytic converter shells, White goods: washing machine tubs, dishwasher interiors, Energy: heat exchanger tubes, flue gas ducts, Construction: architectural panels, handrails, roofing, Food processing: containers, conveyors (non-acidic environments)
SUS410L Ferritic Stainless Steel Plate/Coil Similar and Close Substitute Materials
| Country/Region | Standard | Grade | Remarks |
|---|---|---|---|
| Germany | DIN EN 10088-2 | 1.4000 (X6Cr13) | Higher carbon (≤0.08), lower corrosion resistance |
| Germany | DIN EN 10088-2 | 1.4003 (X2CrNi12) | Contains 0.30-1.00 Ni, slightly better weldability |
| USA | ASTM A240 | 410L | Similar composition, sometimes considered same as SUS410L |
| USA | ASTM A240 | 409 (S40900) | Lower Cr (10.5-11.75), stabilized with Ti, used in exhausts |
| China | GB/T 4237 | 019Cr12 (S11203) | Close but may have slight compositional differences |
Notes:
SUS410L is not precipitation hardening. It is fully ferritic and cannot be hardened by heat treatment. Annealing is typically performed at 700-820°C followed by air or water cooling. Due to the absence of nickel, it is often preferred for cost-sensitive applications and for users with nickel allergy concerns. Weld filler metals of similar composition (e.g., AWS E/ER410L) are recommended for matching corrosion resistance.
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