X6CrNi17-1 Ferritic Stainless Steel
X6CrNi17-1 Ferritic Stainless Steel Data Sheet: EN 10088-1 Grade 1.4017
Complete technical data for X6CrNi17-1 stainless steel including chemical composition, mechanical properties, thermal properties, international equivalents, and typical applications.
Cold forming, bending, deep drawing, welding (with low heat input), machining
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X6CrNi17-1 Ferritic Stainless Steel Introduction
X6CrNi17-1, designated as 1.4017 in the European standard EN 10088-1, is a ferritic stainless steel with a controlled addition of nickel. The nickel content (typically 1.0–1.5%) improves toughness, ductility, and formability compared to plain chromium ferritic grades such as X6Cr17. It offers good corrosion resistance in mildly aggressive environments and moderate mechanical strength. This steel cannot be hardened by heat treatment but can be strengthened by cold working. It is commonly supplied in the annealed condition with a 2B or 2D surface finish and is suitable for deep drawing, bending, and welding under appropriate conditions. Typical applications include household appliances, catering equipment, architectural trims, and automotive components where a balance of performance, workability, and cost is required.
X6CrNi17-1 Ferritic Stainless Steel Chemical Composition
Chemical composition according to EN 10088-1 for ladle analysis. Nickel is intentionally added to enhance toughness and ductility while maintaining a predominantly ferritic microstructure. All values are maximum unless a range is indicated.
| Element | Standard Value (min–max, max) | Remarks |
|---|---|---|
| Carbon (C) | 0.04 – 0.08 | Controls strength; higher than in low-interstitial ferritics |
| Silicon (Si) | ≤ 1.00 | Deoxidizer; higher levels may promote sigma phase |
| Manganese (Mn) | ≤ 1.00 | Austenite former; aids hot workability |
| Phosphorus (P) | ≤ 0.040 | Impurity; kept low for corrosion resistance |
| Sulfur (S) | ≤ 0.015 | Controlled low to maintain toughness |
| Chromium (Cr) | 16.0 – 18.0 | Primary element for corrosion resistance |
| Nickel (Ni) | 1.0 – 1.5 | Improves toughness and formability |
| Nitrogen (N) | ≤ 0.040 | Can refine grain; excess may impair ductility |
X6CrNi17-1 Ferritic Stainless Steel Physical Properties
Typical physical properties at room temperature unless stated otherwise. These are not mandatory requirements but commonly accepted reference values for 1.4017 ferritic stainless steel.
| Property | Typical Value | Unit | Test Condition |
|---|---|---|---|
| Density (ρ) | 7.70 | g/cm³ | 20 °C |
| Modulus of Elasticity (E) | 215 | GPa | 20 °C |
| Shear Modulus (G) | 83 | GPa | 20 °C |
| Poisson's Ratio (ν) | 0.30 | – | 20 °C |
| Thermal Expansion Coefficient (α) | 10.5 | 10⁻⁶/K | 20–100 °C |
| Thermal Conductivity (λ) | 25.0 | W/(m·K) | 20 °C |
| Specific Heat Capacity (cp) | 460 | J/(kg·K) | 20 °C |
| Electrical Resistivity (ρe) | 0.60 | µΩ·m | 20 °C |
X6CrNi17-1 Ferritic Stainless Steel Mechanical Properties
Mechanical properties for plate/coil in the annealed (+A) condition according to EN 10088-2. Values are guaranteed for transverse test pieces unless otherwise noted and apply to thicknesses up to 6 mm. Hardness values are for information.
| Property | Standard Requirement Value | Unit | Test Condition |
|---|---|---|---|
| 0.2% Yield Strength (Rp0.2) | ≥ 350 | MPa | Longitudinal, room temperature |
| Tensile Strength (Rm) | 500 – 700 | MPa | Longitudinal, room temperature |
| Elongation (A80) | ≥ 15 | % | Gauge length 80 mm, longitudinal |
| Hardness | ≤ 223 | HBW | Annealed condition |
X6CrNi17-1 Ferritic Stainless Steel Direct Equivalent Grades
| Country/Region | Standard | Grade | Remarks |
|---|
X6CrNi17-1 Ferritic Stainless Steel Application Introduction
X6CrNi17-1 combines good corrosion resistance with improved formability and weldability, making it suitable for a variety of applications where ferritic stainless steels are preferred but plain chromium grades may lack toughness. The nickel addition also provides a more stable microstructure in welded joints. Typical usage spans the following areas.
Product Applications: Dishwasher and washing machine inner drums, Kitchen sinks and countertops, Decorative panels and elevator interiors, Exhaust system flanges and heat shields, Deep-drawn containers and mixing bowls, Light structural members
Processed into products: Deep-drawn housings, Welded brackets and frames, Stamped brackets and clamps, Spring elements (when cold worked), Fasteners (bolts, nuts) for mildly corrosive environments, Trim rings and bezels
Application industries: Home appliance manufacturing, Commercial catering equipment, Automotive components (exhaust systems, trim), Architecture and construction, Food processing machinery, General engineering
X6CrNi17-1 Ferritic Stainless Steel Similar Alternative Materials
| Country/Region | Standard | Grade | Remarks |
|---|---|---|---|
| USA | ASTM A276 | 431 (UNS S43100) | Similar Cr/Ni base, but higher C (0.12–0.24) makes it martensitic and heat-treatable. |
| Japan | JIS G4303 | SUS 431 | Equivalent to AISI 431; not a direct replacement for X6CrNi17-1. |
| European Union | EN 10088-3 | X17CrNi16-2 (1.4057) | Martensitic with higher carbon; used when higher strength is required. |
| European Union | EN 10088-2 | X6Cr17 (1.4016) | Plain ferritic without Ni; lower strength and toughness but more cost-effective. |
Notes:
When welding X6CrNi17-1, low heat input procedures are recommended to minimize grain growth in the heat-affected zone. Post-weld heat treatment is generally not required, but a full anneal may restore ductility if necessary. The material is magnetic in all conditions. For applications requiring higher hardness or wear resistance, consider martensitic grades such as 1.4057 or AISI 431. Surface finish options include 2B (cold rolled, heat treated, pickled, skin passed) and 2D (cold rolled, heat treated, pickled) according to EN 10088-2.
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