321 Cold Rolled Stainless Steel Strip For Automotive Metal Bellows

Application scenarios
• High-temperature pipeline systems: such as steam pipelines of boilers and steam turbines, and connecting pipelines of high-temperature reaction devices in petroleum refining, which are used to compensate for the expansion and contraction displacement of pipelines caused by temperature changes.
• Industrial kiln equipment: exhaust pipes and hot air pipes of kilns in metallurgy, ceramics and other industries, which can withstand high-temperature flue gas corrosion and thermal shock.
• Heat exchange equipment: connecting pipelines of condensers and heat exchangers, which can cope with the circulation and transportation of high-temperature media (such as hot water and hot oil) and resist intergranular corrosion under long-term high temperatures.
• Other high-temperature scenarios: such as automobile exhaust treatment devices, high-temperature fluid transportation pipelines in the aerospace field, etc., which require both high-temperature stability and corrosion resistance.

Differences from 316Ti stainless steel with bellows
Both improve the resistance to intergranular corrosion by adding alloying elements, but 321 uses titanium as a stabilizing element and focuses more on performance in high-temperature (above 600°C) environments; 316Ti contains molybdenum and titanium, and has better corrosion resistance (especially to chloride ions), which is suitable for scenarios with high temperatures and corrosive media. 321 is relatively low in cost and is a common choice for high temperature, non-corrosive environments.