ASTM A249 TP321 Welded Austenitic Steel Tubes
Section Shape：Round,
Size：12.7~152.4mm,
Standards：ASTM A249,
Surfaces：Unpolish, Mill Finish, Polish.,
Export Packing：Ply-Wooden Case / Bundle with Plastic Cap.,
Applications：Heater,Boiler,Heat Exchanger,Dairy,Food Industry.,
ASTM A249 TP321 Welded Austenitic Steel Tubes introduction
ASTM A249 TP321 welded austenitic steel pipe is a type of welded austenitic steel pipe used in boilers, superheaters, heat exchangers, and condensers. Typically, these pipes have a wall thickness ranging from 0.015 inches to 0.320 inches (0.4 mm to 8.1 mm) and an inside diameter from 3.2 mm to 5 inches.
ASTM A249 TP321 Welded Round Steel Tubes
Advantages of ASTM A249 TP321 welded tube
TP321 stainless steel welded tube has a tensile strength of ≥515MPa, a yield strength of ≥205MPa, and an elongation of ≥30%. It maintains good mechanical properties even after long-term use at temperatures below 650°C. Its oxidation resistance is better than that of ordinary stainless steel. It can withstand high pressure loads, mechanical vibrations, and temperature changes, reducing the risk of deformation or breakage.
SS UNS S32100 Welded Tubes has excellent welding performance and supports processes such as TIG, MIG, and arc welding. It can be used with ER321 welding wire and E321-16/-15 welding rods to effectively control welding stress and deformation, ensuring long-term reliable operation of the pipeline system.
TP321 Electric Resistance Welded Pipe Price
Strictly following the ASTM A249 standard, we control the entire process from steelmaking, forming to testing (hydraulic testing, eddy current/radiographic testing), provide material reports, mechanical properties testing and corrosion resistance test data, and support customization within the range of outer diameter 6-610mm and wall thickness 0.5-50mm to meet the personalized needs of special sizes, pressure levels and working conditions.
ASTM A249 TP321 Welded Boiler Tubes Quick Details
Product Name：ASTM A249 TP321 Welded Boiler Tubes
Manufacture：welded process,
Outside Diameter：12.7mm--127mm
Wall thickness：0.9mm--12.7mm
Length：6000mm,12000m or specified length as require
Heat Treatment of ASTM A249 TP321 pipe
| Grade | UNS Number | Solutioning Temperature, min or range | Quenching Method |
| TP321 | S32100 | 1900 °F [1040 °C] C | Quenched in water or rapidly cooled by other methods. |
Chemical Composition of ASTM A249 TP321 Welded Boiler Tubes
| Grade |
UNS Designation |
Composition, % | ||||||||
| Carbon | Manganese | Phosphorous | Sulfur | Silicon | Chromium | Nickel | Nitrogen | Other | ||
| TP321 | S32100 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 9.0–12.0 | 0.10 |
Ti 5(C+N)- 0.7 |
Mechanical Properties of ASTM A249 TP321 SS Welded Tubes
| Grade |
UNS Designation |
Tensile Strength, min, ksi [MPa] |
Yield Strength, min, ksi [MPa] |
Elongation in 2 in. or 50 mm,min, % |
Rockwell Hardness Number,max |
| TP321 | S32100 | 75 [515] | 30 [205] | 35 | B90 |
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