Stainless Steel Seamless Tube & Pipe
They are widely used in different applications like transportation of fluid, heat- exchange, chemical processing, and many others. These tubes and pipes are made up of high-quality stainless steel, which provides excellent durability, strength, and resistance to corrosion, heat, and pressure.
One of the key benefits of stainless steel seamless tubes and pipes is their ability to withstand high temperatures and pressures. They are ideal for use in extreme environments that require efficient heat transfer and reliable performance. Moreover, seamless tubes and pipes offer superior mechanical properties and dimensional accuracy, ensuring optimal functionality and efficiency in applications.
Stainless steel seamless tubes and pipes are also hygienic and easy to maintain. They are resistant to bacteria and germs, making them ideal for use in food processing and healthcare facilities. Additionally, they require minimal maintenance, reducing operational costs and downtime.
Another advantage of stainless steel seamless tubes and pipes is their aesthetic appeal. They provide a sleek and polished appearance that complements various architectural designs. They are also available in a wide range of sizes and shapes, enabling them to fit seamlessly into various applications.
In conclusion, stainless steel seamless tubes and pipes are essential components in various industries due to their durability, strength, and resistance to heat, pressure, and corrosion. They offer superior mechanical properties, dimensional accuracy, and hygienic properties, making them ideal for different applications. Their aesthetic appeal and ease of maintenance also make them a popular choice for many industries.
Specification
SS Seamless Tube Chemical Formula
Grade |
UNS # |
Content % by weight |
|||||||
Carbon |
Manganese |
Phosphorus |
Sulfur |
Silicon |
Chromium |
Nickel |
Molybdenum |
||
TP304 |
S30400 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
18–20 |
8–11 |
x |
TP304L |
S30403 |
0.035 |
2.00 |
0.045 |
0.030 |
1.00 |
18–20 |
8–13 |
x |
TP316 |
S31600 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
16–18 |
10–14 |
2–3 |
TP316L |
S31603 |
0.035 |
2.00 |
0.045 |
0.030 |
1.00 |
16–18 |
10–14 |
2–3 |
Standard
Mechanical Property |
|||||
ASTM |
TS(Mpa)≥ |
YS(Mpa)≥ |
EL(%)≥ |
Hardness |
|
HB |
HRB |
||||
201 |
520 |
275 |
40 |
241 |
100 |
202 |
520 |
275 |
40 |
207 |
95 |
301 |
520 |
205 |
40 |
207 |
95 |
304 |
520 |
205 |
40 |
20 |
90 |
304L |
480 |
175 |
40 |
187 |
90 |
309S |
520 |
205 |
40 |
187 |
90 |
310 |
520 |
205 |
40 |
187 |
90 |
310S |
520 |
205 |
40 |
187 |
90 |
316 |
520 |
205 |
40 |
187 |
90 |
316L |
480 |
175 |
40 |
187 |
90 |
316Ti |
520 |
205 |
40 |
187 |
90 |
317L |
480 |
175 |
40 |
187 |
90 |
321 |
520 |
205 |
40 |
187 |
90 |
430 |
450 |
205 |
22 |
183 |
88 |
904L |
490 |
216 |
35 |
|
|
2205 |
640 |
|
25 |
|
|
Process
Hot Rolling (Extruded Seamless Steel Pipe) Process:
round tube billet→heating→perforation→three-roller cross-rolling, continuous rolling or extrusion→tube removal→sizing (or reducing diameter)→cooling→straightening→hydraulic test (Or flaw detection)→mark→storage
Cold Drawn (Rolled) Seamless Steel Tube Process:
round tube billet→heating→perforation→heading→annealing→pickling→oiling (copper plating)→multi-pass cold drawing (cold rolling)→billet→heat treatment→straightening→Hydraulic test (flaw detection)→Marking→Storage.
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