444 Stainless Steel Coil Strip Heat-Resistant Ideal for Automotive Industrial Use

Products Specification

Product Name: 444 Stainless Steel Strip
Grade Specifications: UNS S44400 / EN 1.4521

Innovative Solution for Corrosive Environments

444 stainless steel strip is a premium ferritic alloy engineered to deliver outstanding performance in aggressive and high-temperature settings. Unlike conventional austenitic steels, it combines chromium and molybdenum to combat localized corrosion while maintaining cost efficiency. Ideal for industries demanding durability without the price tag of nickel-heavy alloys.

Core Advantages

• Chloride Resistance: Excels in seawater, chemical, and coastal applications.

• Zero Nickel Design: Reduces costs and price volatility linked to nickel markets.

• Thermal Stability: Retains strength at elevated temperatures (up to 400°C/752°F).

• Eco-Friendly: Fully recyclable and compliant with RoHS standards.

• Low Maintenance: Resists scaling and oxidation in humid or acidic conditions.

Performance Highlights

• Stress Corrosion Cracking (SCC) Resistance: Superior to 304/316 in chloride-rich settings.

• Pitting Resistance Equivalent (PRE): ≥24, ensuring reliability in harsh media.

• Fatigue Strength: Enhanced cyclic load tolerance for dynamic applications.

Technical Specifications

Chemical Composition

• Cr: 17.5–19.5% | Mo: 1.75–2.5% | C: ≤0.025% | N: ≤0.035% | Fe: Balance

Mechanical Properties

• Tensile Strength: 415–550 MPa | Yield Strength: 275–350 MPa

• Elongation: ≥20% | Hardness (Annealed): 170–200 HV

Physical Attributes

• Density: 7.75 g/cm³ | Thermal Expansion: 10.4 μm/m·K (20–100°C)

• Magnetic Response: Fully magnetic, suitable for sensors and electronic housings.

Customization Options

1. Thickness & Width: Ranges from ultra-thin 0.05mm foil to 5mm heavy-duty strips.

2. Surface Treatments:

   • Passivated: Enhanced corrosion protection.

   • Embossed: Anti-slip textures for industrial flooring.

   • PVD Coating: Decorative or functional color finishes.

3. Temper Options: Soft annealed, 1/4 hard, 1/2 hard for tailored strength.

Industry-Specific Applications

• Renewable Energy: Solar panel frames, geothermal piping.

• Water Infrastructure: Desalination plants, wastewater treatment systems.

• Medical Devices: Sterilization trays, surgical tool components.

• Consumer Appliances: Dishwasher linings, refrigerator condensers.

• Transportation: Marine hardware, railcar fittings.

Why Choose 444 Over Alternatives?

• Cost-Efficiency: 30–40% lower lifecycle cost vs. 316L in chloride environments.

• Simplified Fabrication: No post-weld annealing required, reducing processing time.

• Sustainability: 98% recyclability rate, aligning with green manufacturing goals.

Quality Assurance

• Certifications: ISO 9001, ASTM A176, and PED 2014/68/EU compliant.

• Testing Protocols: Third-party validated for intergranular corrosion (ASTM A763) and eddy current flaw detection.

• Traceability: Full material batch tracking via digital MTCs (Mill Test Certificates).

Packaging & Delivery

• Standard: VCI (Volatile Corrosion Inhibitor) film + waterproof wrapping.

• Special Requests: Vacuum-sealed packs for critical applications.

• Lead Time: 2–4 weeks for bulk orders; expedited shipping available.

Contact Us Today!
Request free samples or discuss custom specifications with our metallurgy experts. Ideal for OEMs seeking reliable, budget-friendly stainless solutions.