In the intricate realm of stretch shell component fabrication, the importance of meticulous material selection cannot be overstated. Choosing the right materials is paramount to avoid issues such as wrinkling, cracking, and uneven surfaces. To aid in this crucial decision-making process, we’ve curated an exhaustive list of commonly utilized materials tailored for stretch shell applications.

Exploring the Versatility of Low Carbon Steel

Formability, Strength, and Cost-Effectiveness

One standout choice for stretch shell components is low carbon steel, a material boasting commendable formability (dependent on the material grade), elevated strength, and lightweight characteristics. It not only offers superior cost-effectiveness compared to alternative stretch materials but also ensures consistent molding dimensions. Low carbon steel is less susceptible to corrosion, making it an ideal candidate for applications that require post-treatment protective measures, such as electroplating. Widely used in various automotive components, especially those demanding heightened structural integrity, notable low carbon steel variants include 1008, HSLA Grade 50, 1010, HSLA Grade 80, DC03/DC04, B340LA/B410LA, SPCC, SPCD, and SPCE.

Stainless Steel: Unrivaled Strength and Corrosion Resistance

Heat Treatment and Diverse Applications

Renowned for its elevated strength, lightweight attributes, and impressive corrosion resistance, stainless steel stands as another staple material for stretch shell applications. This versatile material is well-suited for heat treatment, exhibits commendable wear resistance, and eliminates the need for additional electroplating protection. Widely employed in automotive manufacturing for crucial components such as fuel supply systems, braking systems, emission systems, oxygen sensors, and decorative elements. Frequently used grades include 304L, 305, 310, 316, 410, and 430.

Aluminum Alloys: Lightweight Powerhouses

Diversity, Strength, and Corrosion Resistance

For those seeking lightweight alternatives, aluminum alloy stretch shells present an excellent choice. Characterized by their lightweight nature (approximately one-third that of low carbon steel), elevated strength, non-magnetic properties, and corrosion resistance, aluminum alloys are versatile and can undergo anodization to prevent corrosion. Commonly applied in the automotive sector and various industries for heat dissipation devices, energy storage units (e.g., batteries), beverage containers, and pharmaceutical manufacturing. Noteworthy aluminum alloy materials include 3003, 5052, and 6061.

Copper: A Reliable Option with Exceptional Properties

Corrosion Resistance and Weldability

Copper, with its distinctive corrosion resistance and weldability, stands out as a common choice for stretch shell applications. Widely utilized in the electrical industry, electronic industry, and automotive sector, copper offers reliability and versatility. Prominent copper alloy variants include C22000, C26000, C28000, and C52100.

In conclusion, the repertoire of materials for stretch shell components is diverse, with low carbon steel, stainless steel, aluminum alloy, and copper alloy taking the lead. By understanding the unique attributes of each material, manufacturers can make informed decisions, ensuring the optimal performance and longevity of their stretch shell components.

stretch shell
stretch shell