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Stainless Steel 316/316L Pipe Fittings

Chemical Composition %

C

Cr

Mn

Mo

Ni

P

S

Si

Max

 

Max

 

 

Max

Max

Max

0.035

16.0-20.0

2.00

2.0-3.0

10.0-15.0

0.040

0.030

0.75


AVAILABILITY

Seamless Pipe 1/4" - 24" 
Weld Pipe 1/2" - 60" 
Seamless Butt-Weld Fit. 1/2" - 24" 
Welded Butt-Weld Fit. 1/2" - 60" 
Threaded Fittings 1/4" - 4"
Forged Fittings 1/4" - 4" 
Outlets 1/4" - 24" 
Flanges 1/2" - 60" 

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.

     
SS 316L 45 Degree Elbow
SS 316L 90 Degree Elbow
SS 316L 180 Degree Elbow
SS 316L Equal Tee
     
SS 316L Unequal Tee
SS 316L Barred Tee
SS 316L Concentric Reducer
SS 316L Eccentric Reducer
     
SS 316L Lateral
SS 316L Y
SS 316L Long Radius Bend
SS 316L Long Stubend
     
SS 316L Short Stubend
SS 316L Cap
SS 316L Swage Nipple
SS 316L Barrel Nipple
     
SS 316L Spool
SS 316L Forged Fitting
SS 316L Threaded Fitting
SS 316L Bsp Threaded Fitting
     
SS 316L Bspt Threaded Fitting
SS 316L Npt Threaded Fittings
SS 316L Sockolet
SS 316L Weldolet
     
SS 316L Elbolet
SS 316L Latrolet
SS 316L Nipolet
SS 316L Flangeolet
     
SS 316L Sweepolet
SS 316L Socketweld Flange
SS 316L Weldneck Flange
SS 316L Blind Flange
     
SS 316L Lap Joint Flange
SS 316L Weldneck Rtj Flange
SS 316L Threaded Flange
SS 316L Orifice Flange
         
SS 316L Spectacle Blind Flange
  SS 316L Pipe        


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