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TP321 stainless steel pipe is a stainless steel containing titanium stabilizing elements. Its chemical composition mainly includes chromium (Cr), nickel (Ni), titanium (Ti) and other elements. The reasonable ratio of these elements makes SUS321 stainless steel tube have excellent corrosion resistance and high temperature strength. At the same time, Type SUS321 is equivalent to AISI 321 (UNS S32100) which is a stabilized austenitic stainless steel pipe similar to type SUS304 pipe but with a titanium addition. Meanwhile, This stainlesss steel cannot be hardened by heat treatment,but it can used in high-temperature applications where resistance to intergranular corrosion.
Composition | C | Si | Mn | P | S | Cr | Ni | Mo | Al |
Min | \ | \ | \ | \ | \ | 17.00 | 9.00 | 2.00 | 0.75 |
Max | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 19.00 | 12.00 | 3.00 | 1.5 |
Mechanical properties
Rigidity | Tensile strength | Yield strength | Elongation |
≤187HB | ≥515MPa | ≥205MPa | ≥40% |
Physical properties
Density | Melting points | Specific heat | Magnetism | Resistivity | Thermal conductivity | Linear expansivity |
7.93g/cm3 | 1398℃ | 0.50J/(Kg.℃） | \ | 0.072×10-6Ω·m(20℃) | 16.2W/(m.k)(100℃) | 16.5×10-6/K(20-100℃) |
Type: Seamless / Welded
Size Range:
OD: 6mm – 1200mm
Thickness: SCH 5 – SCH XXS
Surface: Pickled, Annealed, Polished
Testing: Hydrostatic test, NDT, PMI, Mechanical test
Grade: TP321 / SUS321 / UNS S32100
Type: Seamless / Welded
Size Range:
OD: 6mm – 114mm (typical for tubing)
Thickness: Thin wall / precision tubing
Surface: Bright Annealed (BA), Pickled, Polished
Testing: Eddy current test, Hydrostatic test, Mechanical test
Application :
ASTM A269 TP321 tube Suitable for high-temperature,meanwhile,this materia can preventing intergranular corrosion after welding or heat exposure welded environments,so it normally used in wleding environment and material Excellent dimensional accuracy for precision applications, Material with Higher Nickel composition ,so it is Reliable corrosion resistance in industrial systems, many project usually used in heat excahnger and boiler tubing instrumentation lines.
Grade: TP321 / SUS321 / UNS S32100
Type: Seamless (mainly)
Size Range:
OD: 6mm – 114mm
Wall Thickness: As per standard / custom
Surface: Pickled, Bright Annealed
Testing:
Eddy Current Test
Hydrostatic Test
Mechanical Properties Test
SUS321 Boiler tube esigned for high-temperature and pressure environments,it have Long service life in thermal system, it also one of high temperature stainless steel tube with Reliable performance in boiler and heat exchanger applications,This standard tube Suitable for EPC and industrial projects
(1)Corrosion resistance:SUS321 stainless steel pipe performs well in a variety of corrosive environments, especially in oxidizing media.
(2)High temperature resistance:Due to the titanium element,SUS321 stainless steel tube can still maintain good mechanical properties at high temperatures and is suitable for working environments up to 800°C
(3)Resistance to intergranular corrosion:The addition of titanium effectively inhibits the occurrence of intergranular corrosion, allowing SUS321 stainless steel to maintain good corrosion resistance after welding or other high-temperature processing.
MONO Group is one of Austenitic stainless steel, Duplex stainless steel and Precipitation-hardened stainless steel etc manufacturer&Supplier&Wholesaler from China,We can supply ASTM /DIN/ISO/GB stndard high quality alloy plate,sheet,round bar,tube.pipes,fittings,flange,pls contact us freely for your RFQ to info@monokj.com
