ASTM A249 TP321 Welded Condenser Tubes
Specification:ASTM A249 / ASME SA249
Manufacturing Type:ERW / Welded
Delivery Condition:Annealed and Pickled (AP), Polished
Surface Finish:BA, 2B, No.4, No.1, No.3, No.8, 8K, HL, 2D, 1D, Mirror Polished, 180G, 320G, 400G Satin/ Hairline, 400G, 500G, 600G or 800G
Outside Diameter (OD):6 to 304.8 mm
Wall Thickness Range:0.5 to 6 mm
Standard:SUS, JIS, AISI, ASTM, GB, DIN, EN
ASTM A249 TP321 stainless steel condenser Tube introduction
ASME SA249 TP321 welded stainless steel pipe for condenser is austenitic stainless steel. Titanium (Ti) is added to stabilize carbon, thereby improving its resistance to intergranular corrosion. It has good high temperature strength and corrosion resistance, and is often used in various equipment and piping systems in high temperature environments.
TP321 SS welded pipes are usually supplied in a solution treated state. Solution treatment is to heat the pipe to a certain temperature (usually 920 - 1150℃), keep it warm for a certain period of time, and then cool it quickly to fully dissolve elements such as carbon and titanium in austenite, thereby obtaining a uniform structure and good performance.
ASME SA249 TP321 Welded Tubing
What are the advantages of TP321 pipes compared with TP304 TP316 stainless steel pipes?
Intergranular corrosion resistance: TP321 fixes carbon by adding titanium, avoiding the precipitation of carbides at the grain boundaries during welding or high-temperature use, thereby significantly improving the ability to resist intergranular corrosion, which is beyond the reach of TP304 and TP316.
High temperature performance: In high temperature environments, TP321 has better strength and oxidation resistance than TP304, and has better stability under certain specific high temperature conditions than TP316.
Why choose GNEE?
GNEE is a professional steel pipe exporter with 12 production lines and an annual output of 50,000 tons. It has obtained the ISO9001 international quality management system certificate.
In addition, we can also provide a full range of processing services: cutting, chamfering, punching, welding, bending, notching, pickling.
Our experienced staff is always available to discuss your requirements and ensure full customer satisfaction. Your inquiries are always welcome!
ASTM A249 TP321 Stainless Steel Tube Specification
UNS S32100 Stainless Steel Welded Tube Chemical Composition
| Grade | C | N | Ni | Si | P | S | Mn | Cr | TI | |
| SS 321 | Min | - | - | 9.00 | - | - | - | - | 17.0 | 5(C+N) |
| max | 0.08 | 0.10 | 12.00 | 1.00 | 0.045 | 0.030 | 2.00 | 19.0 | 0.70 max |
Stainless Steel WERKSTOFF NR. 1.4438 Welded Tubing Mechanical Properties
| Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| SS 321 | 515 | 40 | 205 | 95 | 217 |
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