Corrosion-Resistant Stainless Steel Transition Strip - 430/440 Series

Corrosion-Resistant Stainless Steel Transition Strip - 430/440 Series

​Technical Specifications

​Performance Attributes

​Tensile & Bending Strength

The ​stainless steel transition strip in ​430 grade offers a balanced combination of tensile strength (485–620 MPa) and ductility, making it ideal for architectural applications like ​stainless steel tile edging strip in humid environments. Its low carbon content minimizes carbide precipitation during welding, ensuring structural integrity. In contrast, ​440C stainless steel achieves ultra-high tensile strength (1,860–2,070 MPa) and bending resistance, perfect for heavy-duty ​stainless steel seam strips in industrial flooring or machinery where wear resistance is critical.

​Identification & Traceability

Each ​stainless steel transition strip is laser-marked with a unique code (e.g., "430-TS-3MM") that includes grade, thickness, and production batch. For ​440C strips, a dual marking system (chemical etching + color coding) ensures compliance with aerospace and medical traceability standards.

​Weight Calculation

Calculate the weight of a ​stainless steel tile edging strip using:
$\text{Weight (kg)}=\text{Thickness (mm)}\times \text{Width (mm)}\times \text{Length (m)}\times \text{Density (g/cm³)}\times 0.001$

• ​430 series: Density = 7.70 g/cm³ → A 2 mm × 50 mm × 10 m strip weighs ​7.7 kg.
• ​440C series: Density = 7.80 g/cm³ → A 3 mm × 30 mm × 10 m strip weighs ​7.02 kg.

​Why Stainless Steel Can Rust

While ​stainless steel transition strips resist corrosion, rust may occur under specific conditions:

1. ​Chloride Exposure: Prolonged contact with seawater or de-icing salts degrades the passive chromium oxide layer, especially in ​430 grade (lower Cr content vs. 316).
2. ​Intergranular Corrosion: Sensitization at 450–850°C causes Cr-depleted zones in ​430 stainless steel, but Nb-Ti stabilization (e.g., NTS430FSS) reduces Cr23C6 precipitation.
3. ​Galvanic Corrosion: Contact with carbon steel or copper accelerates oxidation in acidic environments. ​440C’s high carbon content improves pitting resistance but requires passivation for marine use.

​Manufacturing & Processing

• ​Cold Rolling & Slitting: ​430 stainless steel undergoes precision cold rolling (±0.03 mm tolerance) and slitting to produce ​stainless steel seam strips for HVAC and automotive trim.
• ​Heat Treatment: ​440C strips are oil-quenched (1,010–1,060°C) and tempered (150–370°C) to achieve HRC 58–60 hardness.
• ​Surface Treatments: Electro-polishing for ​430 strips enhances corrosion resistance in kitchen applications, while PVD coating on ​440C improves wear resistance in high-friction environments.

​Applications

• ​Architectural Trim: ​Stainless steel tile edging strip (430 grade) for moisture-prone areas like bathrooms and façades.
• ​Industrial Flooring: Heavy-duty ​stainless steel transition strip (440C) in chemical plants and food processing facilities.
• ​Automotive Seams: ​Stainless steel seam strips (430 grade) for exhaust systems and underbody protection.

​Why Choose Our Stainless Steel Transition Strips?

1. ​Material Excellence: ​430 stainless steel meets ASTM A240 standards for oxidation resistance up to 1,500°F, while ​440C complies with AMS 5630 for aerospace durability.
2. ​Precision Engineering: ±0.03 mm tolerances ensure seamless integration of ​stainless steel tile edging strip in architectural projects.
3. ​Corrosion Solutions: Nb-Ti-stabilized ​430 strips reduce intergranular corrosion risks by 80% compared to standard SUS430FSS.
4. ​Customization: Tailored widths (10–1,200 mm) and finishes (PVD, mirror polish) for ​stainless steel seam strips and transition profiles.
5. ​Global Certifications: ISO 9001 and RoHS compliance guarantees reliability for export markets.