TYPE 316 STAINLESS STEEL
Type 316 is a molybdenum-bearing
grade. This addition gives the better overall corrosion resistance properties
than type 304 and higher creep strength at elevated temperatures. Type 316
gives useful service at room temperature in sulphuric acid of concentration of
lower than 15% and higher than 85%. It also resists chloride attack and is
often selected for use in marine atmospheres.
Type 316L with
its .03 maximum carbon content is used in applications where it is not possible
to anneal after welding and where maximum corrosion resistance is required.
Corrosion Resistance: Good resistance to a wider range
of chemicals than type 304. Highly resistant to the complex sulphur compounds
used in pulp and paper processing. Also resists attack of marine and corrosive
industrial atmospheres.
Heat Resistance: Good oxidation resistance
in intermittent service to 1600°F and in
continuous service to 1700°F. Continuous use of 316 in 800 –
1575°F range not recommended but often
performs well in temperatures fluctuating above and below this range. Type 316L
is more resistant to carbide precipitation and can be used in the above
temperature range.
Heat Treatment: Annealing – heat to 1850
- 2050°F and cool rapidly. These grades
cannot be hardened by thermal treatment.
Welding: Good characteristics suited to all
standard methods. Use Type 316, 316L filler rods or electrodes depending on
application. Welded sections in Type 316 require post-weld annealing for
maximum corrosion resistance. This is not required if Type 316L is used.
TYPICAL APPLICATIONS: The list of applications for this general-purpose grade is very
extensive and includes:
Pulp &
Paper Equipment Dairy &
Brewery Heat
Exchangers Fittings
Food
Applications Pharmaceutical
Equipment Photographic
Developing Equipment
Exterior
Architectural Components in marine coastal areas Dyeing equipment
NOTE: The above information is published as a
general guide only and mechanical and physical properties should only be
applied from mill certificates issued.