Home > Stainless Steel Pipes & TubesTP309 Stainless Steel Pipes & Tubes
Material Description
UNS S30900
Chemical Composition, %
C
Mn
P
S
Si
Cr
Ni
.20 max
2.0
.045
.03
0.75
22.0-24.0
12.0-15.0
TP309 is an austenitic chromium-nickel stainless steel that provide
excellent corrosion resistance and heat resistance plus good strength at
room and elevated temperatures.
Corrosion Resistance
TP309 provides excellent general corrosion resistance. It is more
resistant to marine atmospheres than TP304. It exhibits high resistance
to sulfite liquors and is useful for handling nitric acid,
nitric-sulfuric acid mixtures, and acetic, citric, and lactic acids.
TP309 is generally considered heat-resisting alloys. Their destructive
scaling temperature is about 2000°F (1093°C). It exhibits good scaling
resistance in both continuous and intermittent service, but the alloy
should not be used above 1800°F (982°C) for intermittent service.
Application
Heat exchanger tubing, condenser tubing, pipelines, cooling and heating coils in the refinery, chemical processing, petrochemical industries
Seamless Tube Information
Specification: ASTM A-213 / ASME SA-213, ASTM A269 / ASME SA269
Outside Diameter: 6.0-406 mm (1/4’’ – 16’’)
Wall Thickness: 0.5-35 mm (0.0196’’ – 1.378’’)
Length: Max.33000 mm (the maximum length is for the scope of special diameters and walls)
Other sizes are on the request
(0086) -512-56305527
andy@apsteels.com
#2212, New Orient Plaza, Zhangjiagang City, Jiangsu Province, China 
