ASTM A249 TP321 Welded Tubes For Heat Exchanger
YUHONG Group offers ASME SA249 / ASTM A249 TP321 welded stainless steel tubes and we sell these tubes in more than 70 countries up to now.
This specification covers nominal-wall-thickness welded tubes and heavily cold worked welded tubes made from the austenitic steels, with various grades intended for such use as boiler, superheater, heat exchanger, or condenser tubes.
TP321 stainless steel has good corrosion resistance in organic and inorganic acids with different concentrations and temperatures, especially in oxidizing media.Its performance is very similar to 304, but due to the addition of metal titanium, it has better grain boundary corrosion resistance and high temperature strength.
Also, it has excellent high temperature stress, breaking performance, high temperature creep resistance and stress mechanical properties, and is suitable for welding components used at high temperatures.
Specifications
| Standard | ASME SA249 / ASTM A249 |
| Name of Material | Stainless Steel Tubes----Welded |
| Keywordas | Austentic stainless steel; welded steel tube;boiler / condenser tube;etc. |
| Size and Thickness | Usually furnished to this specification are 1 ⁄ 8 in. [3.2 mm] in inside diameter to 12 in. [304.8 mm] in outside diameter and 0.015 to 0.320 in. [0.4 to 8.1 mm], inclusive, in wall thickness. |
| Condition | Annealed |
| Quantity | Feet,metres,or number of lengths |
| Length | Specific or random |
Heat Treatment
TP321------S32100-------Solution Treatment-------1900°F------Quenched in Water or Rapidly Cooled by Other Methods
Test Required
Chemical Analysis/ Mechanical Properties/ Hardness Test/ Flattening Test/ Tension Test/ FlaringTest
Reverse-Bend Test/ Intergranular Corrosion Test/ Hydrostatic or Nondestructive Electric Test/ Grain Size
Chemical Composition % TP321
| C | Mn | P | S | Si | Cr | Ni | N | Other |
| 0.08max | 2.00max | 0.045max | 0.03max | 1.00max | 17.0-19.0 | 9.0-12.0 | 0.1 | Ti 5(C+N)-0.7 |
Tensile Requirements
| Grade | Yield Strength (Mpa) | Tensile Strength (Mpa) | Elongation (%) |
| TP321 | 205 | 515 | 35 min |
Applications Industries
Food Processing
Pulp and Paper Industry
Condensers & Boiler & Heat Exchangers
Sea Water Equipment
Oil Waste Gas Combustion Pipeline
Engine Exhaust Pipe
Petrochemicals- Oil Refining Chemical,etc.
Energy Field- Nuclear Power Generation,Tidal Power Generation,etc
Environmental Protection Field- Gas Processing,Waste Water Treatment,etc.
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ASTM A249 TP321 Welded Tubes For Heat Exchanger Images
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