AVAILABILITY
Seamless Pipe 1 /4" - 20"
Weld Pipe 1/2" - 24"
Butt-Weld Fittings 1/2" - 24"
Butt-Weld Fittings 1/2" - 12"
Flanges 1/2" - 24"
Pressure Fittings 1/4" - 4"
150# Fittings/Nipples 1/4" - 4"
Valves 1/2" - 24"
Tubings 1/4", 3/8", 1/2 3/4", 1"
Bar 1/8" - 12"
SPECIFICATlONS
ASTM
A312, A376, A358, A269 A249, A403, A182, A351 A479, A276
ASME
SA312, SA376, SA358, SA269, SA249, SA182, SA276, SA403, SA479, SA351
DESCRIPTION
Type 316 is a molybdenum steel possessing improved resistance to pitting
by solutions containing chlorides and other halides. In addition,
it provides excellent elevated temperature tensile, creep and stress
- rupture strengths.
DESIGN
FEATURES
• Type 316 is more resistant to atmospheric and other mild environments
than Type 304. It is resistant to dilute solutions (i.e. 1-5%) of
sulfuric acid up to 120 deg.F. However, in certain oxidizing acids,
Type 316 is less resistant than Type 304.
• 316 is susceptible to carbide precipitation when exposed in the
temperature range of 800 deg. - 1500 deg.F. and therefore is susceptible
to intergranular corrosion in the as-welded condition.
• Annealing after welding will restore corrosion resistance.
• Type 316L has the same composition as Type 316 except the carbon
content is held below 0.03%. Not unexpectedly, its general corrosion
resistance and other properties closely correspond to those of Type
316. However, it does provide immunity to intergranular attack in
the as-welded condition or with short periods of exposure in the temperature
range of 800 deg. - 1500 deg.F. The use of 316L is recommended when
exposure in the carbide precipitation range is unavoidable and where
annealing after welding is not practical. However, prolonged exposure
in this range may embrittle the material and make it susceptible to
intergranular attack.
• The maximum temperature for scaling resistance in continuous service
is about 1650 deg. F. and 1500 deg.F. for intermittent service.
• May be susceptible to chloride stress corrosion cracking.
• Non-hardenable; non-magnetic in the annealed condition, and slightly
magnetic when cold worked.
• Improved corrosion resistance to chlorides.
TYPICAL
APPLICATIONS
Nuclear, chemical processing, Rubber, plastics, pulp/paper, pharmaceutical
and textile industries, heat exchangers, condensers and evaporators
TENSILE
REQUIREMENTS
Tensile Strength (KSI) 70
Yield Strength (KSI) 25
KSI can be converted to MPA (Megapascals) by multiplying by 6.895.
info section