Among various stainless steel materials, 1.4017 (X6Cr17) is a widely used, well-balanced, and cost-effective ferritic stainless steel. It is known for its excellent corrosion resistance and good machinability, making it popular in the manufacturing industry. It is particularly suitable for applications such as decorative components, kitchen equipment, and automotive parts.

1. Chemical Composition (Typical Values, %)

• C：≤ 0.08，Reduces carbon content to improve corrosion resistance

• Cr：16.0 – 18.0，Core element for stainless steel, enhancing corrosion resistance

• Si：≤ 1.00，Core element for stainless steel, enhancing corrosion resistance

• Mn：≤ 1.00，Improves hot working performance

• P：≤ 0.040，Limits impurities that can reduce toughness

• S：≤ 0.015，Limits impurities, helps with machinability

• Ni：—，Nickel-free, reducing costs

• Note: 1.4017 is a nickel-free stainless steel, distinct from common austenitic stainless steels like 304 and 316.
  

2. Metallurgical Structure and Performance Characteristics

• Structure Type: Ferritic (Body-Centered Cubic Structure, BCC)

• Magnetic Properties: Magnetic (Distinguished from austenitic stainless steels)

• Coefficient of Thermal Expansion: Low, suitable for applications requiring high dimensional accuracy

• Stress Corrosion Cracking Resistance: Superior to austenitic stainless steels in chloride stress corrosion resistance

• Weldability: Moderate; avoid high heat input as it may cause coarse grain formation

• Strength: Moderate tensile strength of approximately 400–600 MPa, yield strength ≥ 250 MPa

3. Corrosion Resistance

1.4017 contains 16-18% chromium, giving it excellent corrosion resistance in the atmosphere, water vapor, and mildly corrosive media. However, it is unsuitable for use in strong acids and alkalis.

• Suitable for: Clean water, household water, food industry, weak acidic and alkaline media

• Not suitable for: Seawater, salt spray, high chloride environments (such as swimming pools or coastal areas)

4. Machinability and Formability

• Cold Working Performance: Good, suitable for stamping, bending, and stretching

• Hot Working Performance: Can be hot-formed; recommended temperature range: 800–1050°C

• Weldability: Relatively poor; post-welding annealing is required to prevent coarse grain or brittleness

• Machinability: Easier to machine than austenitic stainless steels

5. Typical Application Fields

• Household and Kitchen Equipment: Sinks, cabinet panels, cookware linings, etc.

• Automotive Decorative Parts: Exhaust pipe shields, trim, etc.

• Building Decorations: Handrails, window frames, exterior wall decorations

• Electrical Components: Microwave oven liners, washing machine shells, etc.

• Light Industrial Equipment: Food processing equipment, water storage tanks, etc.

6. Comparison with Other Stainless Steels

（1）1.4017 (430)

• Structure：Ferritic

• Nickel Content：❌ No

• Magnetic Properties：✅ Yes

• Corrosion Resistance：Moderate

• Cost：Low

• Weldability：Fair

（2）1.4301 (304)

• Structure：Austenitic

• Nickel Content：✅ Yes (8%)

• Magnetic Properties：❌ No

• Corrosion Resistance：High

• Cost：High

• Weldability：Excellent

（3）1.4113 (434)

• Structure：Ferritic

• Nickel Content：❌ Trace

• Magnetic Properties：✅ Yes

• Corrosion Resistance：Moderate-High

• Cost：Medium

• Weldability：Fair

7. Summary

1.4017 stainless steel is an economical ferritic stainless steel that plays an important role in various applications, thanks to its good corrosion resistance, magnetic properties, machinability, and low cost. It is particularly suitable for applications that require moderate corrosion resistance but are sensitive to price.

8. About Suzhou Bolaibao Metal

At Suzhou Bolaibao Metal, we are committed to providing reliable and cost-effective metal solutions to various industries. With years of experience and stringent quality control, we ensure that our customers receive high-quality products tailored to their specific needs, such as 1.4017 stainless steel, which is suitable for a wide range of applications. Whether you're looking for corrosion-resistant materials or seeking cost advantages, we offer professional consulting and customized technical support.

Choose Suzhou Bolaibao Metal as your partner to drive innovation and development in your industry.

For more information, visit our website: www.blbszmetal.com 

Phone: +86 15366282159
Email: sale@bolaibao1.com