Product Overview
SS 316L Pipes & Tubes for Corrosion-Resistant Industrial Service
What Is SS 316L?
SS 316L is an austenitic chromium-nickel-molybdenum stainless steel
grade commonly identified as UNS S31603. The addition of molybdenum
improves resistance to localized corrosion in many environments,
including applications where chlorides are present.
For this reason, engineers and procurement teams may consider SS 316L
for chemical processing equipment, marine-related systems, food
processing equipment, pharmaceutical installations and other
corrosion-sensitive applications.
SS 316L Pipe and Tube Characteristics
SS 316L combines an austenitic stainless steel structure with chromium,
nickel and molybdenum. As a result, the grade provides a useful balance
of corrosion resistance, fabrication performance and mechanical strength.
However, material selection should always consider the actual process
media, chloride concentration, temperature, pressure and fabrication
conditions. The required dimensions must also match the applicable
product specification.
Molybdenum Addition and Corrosion Resistance
One of the main characteristics of SS 316L is its molybdenum content.
Molybdenum contributes to improved resistance against pitting and
crevice corrosion compared with many standard chromium-nickel
stainless steel grades.
Consequently, SS 316L is frequently considered for systems exposed to
moisture, salts, process chemicals and selected chloride-containing
environments.
SS 316L Pipes for Industrial Processing
Industrial users can specify SS 316L pipes and tubes for chemical
processing lines, pharmaceutical equipment, food processing systems,
marine applications, heat exchangers and selected water treatment
installations.
Moreover, buyers can select outside diameter, wall thickness, length,
surface finish and construction according to installation and
fabrication requirements.
SS 316L Compared With Other Stainless Steel Grades
Material selection depends on the operating environment rather than
the grade name alone. SS 304 may be considered for general-purpose
stainless steel applications, while SS 316L is commonly considered
when additional resistance to chloride-related corrosion is required.
Similarly, SS 316L may be selected where the lower-carbon version is
required, particularly for certain welded constructions. The final
selection should follow the project specification and service conditions.
Seamless and Welded Pipe Options
The required pipe construction depends on the application and
applicable specification. ASTM A312 covers seamless, straight-seam
welded and heavily cold-worked welded austenitic stainless steel pipe
for high-temperature and general corrosive service.
Before ordering, confirm whether the project requires seamless or
welded construction. In addition, review dimensional tolerances,
testing requirements and documentation requirements with the purchase
specification.
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Austenitic stainless steel with molybdenum addition
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Improved resistance to pitting and crevice corrosion in many environments
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Useful corrosion resistance for chemical and process applications
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Suitable for marine, food, pharmaceutical and industrial systems
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Supports common stainless steel fabrication requirements
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Available in different pipe and tube dimensions
