JIS G3459 SUS321 Stainless Steel Seamless Pipes
SUS321 pipe is generally considered to have comparable weldability to 304 and 304L stainless with the main difference being the titanium addition which reduces or prevents carbide precipitation during welding.
Send E-mail:info@gneestainless.com
Tel:+8615824687445
Description
Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of jis g3459 sus321 stainless steel seamless pipes in China. With abundant experience, we warmly welcome you to wholesale customized jis g3459 sus321 stainless steel seamless pipes from our factory. For price consultation, contact us.
JIS G3459 SUS321 stainless steel seamless pipe is titanium stabilized austenitic stainless steel, which complies with Japanese Industrial Standard (JIS G3459) and is designed for high temperature and corrosive environments.
SUS321 high temperature resistant stainless steel seamless pipe Titanium stabilized design, suitable for scenes where heat treatment cannot be performed after welding, long-term working temperature ≤815℃, short-term tolerance 1000℃, better than 304/316 stainless steel for high temperature pressure vessels, corrosion-resistant shafts, and heat exchangers.
SUS321 steel pipe for automobile exhaust pipe
JIS G3459 SUS321 stainless steel seamless pipe specification
Outer diameter: 6.0 - 60.3 mm (1/8" - 2-3/8").
Wall thickness: 0.5 - 4.0 mm (Sch 10S - Sch 40S).
Length: fixed length (such as 6m, 12m) or random length (5-7m).
JIS G3459 SUS 321 TP stainless steel pipe Chemical Composition and Mechanical Property
| Grade | C | Si≤ | Mn≤ | P≤ | S≤ | Ni | Cr | Mo | other |
| SUS 321 TP | 0.04-0.10 | 0.75 | 2.00 | 0.030 | 0.030 | 9.00-13.00 | 17.00-20.00 | - | Ti4xC%-0.60 |
|
Grade |
Yield Strength N/m㎡≥ |
Tensile Strength N/m㎡≥
|
Elongation % ≥
|
||||||
|
SUS 321 TP |
21(206) | 53(520) |
|
Reasons for choosing GNEE
GNEE factory uses high-precision cold drawing machine and CNC tube rolling machine from hot rolling piercing to cold rolling forming to achieve precise control of outer diameter deviation ±0.3mm and wall thickness deviation ±5%. Through vacuum melting + electroslag remelting process, it ensures uniform distribution of titanium elements and inhibits intergranular corrosion, which is better than the industry average. Equipped with ultrasonic flaw detection (UT) and eddy current flaw detection (ET) equipment, 100% internal defects of pipelines can be detected.
JIS SUS321 Steel Pipe Supplier
FAQ
1. How is the high temperature resistance of SUS321 stainless steel?
A: Long-term working temperature: ≤815℃ (better than 304/316 stainless steel).
Short-term temperature resistance: up to 1000℃, suitable for high temperature oxidation environment (such as automobile exhaust pipes, chemical furnace tubes).
2. Why is SUS321 more resistant to intergranular corrosion than 304 stainless steel?
A: SUS321 forms stable titanium carbide (TiC) by adding titanium (Ti) to carbon, avoiding carbon and chromium from combining to form chromium carbide (Cr23C6), thereby reducing the risk of corrosion caused by chromium depletion at the grain boundary.
3. Under what circumstances should SUS321 stainless steel be selected?
A: High temperature (≥500℃) and sulfur/carbide environment (such as petroleum refining).
Welding is required and post-weld heat treatment is not possible (titanium stabilization design to avoid sensitization).
Hot Tags: JIS G3459 SUS321 Stainless Steel Seamless Pipes, China JIS G3459 SUS321 Stainless Steel Seamless Pipes manufacturers, factory, seamless steel pipe factory, 1 4028 1 4034 Tubes, ASTM 321 347 316 Stainless Steel alloy Pipe, Seamless Tube Features, SUS 410 420J2 440A ss smls pipe, Stainless steel seamless pipe
Send Inquiry
You Might Also Like
