Hydraulic systems across various industries often require components made exclusively from stainless steel due to the demanding environments they operate in. Among these materials, dual-certified SS 316/316L stainless steel stands out for its unique properties and wide-ranging applications. This post will explore the distinctive characteristics of SS 316/316L and how it is utilized across numerous industries.
What is SS 316?
SS 316, also known as UNS S31600 or Grade 316, is an austenitic stainless steel alloyed primarily with chromium, nickel, and molybdenum. The addition of molybdenum, absent in SS 304, gives SS 316 enhanced resistance to harsh environments, particularly those containing saltwater or chlorides. SS 316 offers superior corrosion resistance at high temperatures and increased strength compared to SS 304.
In its annealed state, SS 316 is non-magnetic but can become slightly magnetic if extensively cold worked. This can be corrected through further annealing. Although SS 316 cannot be hardened by heat treatment, it can be significantly strengthened through cold working processes.
What is SS 316L?
SS 316L is the low-carbon variant of SS 316, designed to minimize the risk of carbide precipitation during welding. This makes it an ideal material for welded structures, where maintaining corrosion resistance is critical. Though it shares the same corrosion-resistant properties as SS 316, SS 316L has slightly lower mechanical strength due to its lower carbon content.
Dual-Certified SS 316/316L
Dual-certified SS 316/316L (UNS S31600/S31603) combines the best features of both SS 316 and SS 316L, offering enhanced resistance to carbide precipitation and improved performance in high-temperature environments (between 797°F and 1580°F). This makes it particularly suitable for heavy-gauge welded products, typically thicker than 6mm, where corrosion resistance is paramount.
Key Applications and Industries
The versatility and durability of dual-certified SS 316/316L make it an ideal material for a broad spectrum of industries, including:
- Architectural
- Chemical processing
- Marine and shipbuilding
- Mining
- Petroleum
- Pharmaceutical
- Pulp and paper
- Textiles
- Transportation
- Water filtration
Common Products Made from SS 316/316L
Dual-certified SS 316/316L is widely used in the production of various components, including:
- Hydraulic fittings and adapters
- Ball valves
- Compression fittings
- Flanges
- Hardware
- Heat exchangers
- Hose fittings
- Jewelry
- Laboratory benches and equipment
- Pressure reducing valves
- Springs
- Strainers
- Threaded fasteners
The superior corrosion resistance and strength of dual-certified SS 316/316L make it an invaluable material in industries that require high-performance stainless steel products. Whether in hydraulic systems or marine applications, the unique properties of this stainless steel make it a preferred choice for professionals and manufacturers alike.
QC Hydraulics supply Dual SS 316/316L hydraulic hose fittings and adapters. please feel free to contact us for more details.
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- Stainless Hose Fittings
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- Stainless Adapters
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- SS DIN Metric Tube Fittings