A312 TP321 Heat-resistant welding Stainless Steel Pipe
The pipes supplied by GNEE undergo multiple inspections to ensure quality, with sizes ranging from 1/8″NB TO 30″NB IN, and wall thicknesses from 0.6 - 12.7 mm or even thicker.
A312 TP321 alloy pipe is an austenitic stainless steel stabilized by titanium with major element additions of 17% to 19% chromium and 9% to 12% nickel. Therefore A312 TP321 polished stainless steel pipe has high strength, anti-scaling and phase stability, as well as resistance to subsequent aqueous corrosion due to its chemical composition.
In addition, A312 TP321 welded austenitic stainless steel pipe can resist intergranular corrosion in high temperature environments from 800 to 1500°F for applications in corrosive and high temperature environments.
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ASTM A312 TP 321 Stainless Steel Tube Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
321 |
min. |
– |
2.00 |
0.75 |
0.045 |
0.030 |
17.0 |
– |
9.0 |
0.10 |
Ti=5(C+N) |
ASTM A312 TP 321 Stainless Steel Pipe Mechanical Properties
|
Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness |
|
|---|---|---|---|---|---|
|
Rockwell B (HR B) max |
Brinell (HB) max |
||||
|
321 |
515 |
205 |
40 |
95 |
217 |
ASTM A312 TP 321 tube Physical Properties
|
Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (m/m/0C) |
Thermal Conductivity (W/m.K) |
|||
|---|---|---|---|---|---|---|---|
|
0-1000C |
0-3150C |
0-5380C |
at 1000C |
at 5000C |
|||
|
321 |
8027 |
193 |
16.6 |
17.2 |
18.6 |
16.1 |
22.2 |
A312 TP321 stainless steel pipe
Why choose us
Gnee company covers an area of 35,000 square meters and has more than 200 employees, including 80 technical staff. We have established an effective and complete quality control and assurance system. The company has also obtained ISO9001 quality system certification.
Gnee Company Environment
FAQ
1.Q.What's your advantage?
A.Honest business with competitive price and professional service on export process.
2.Q.Can your products be customized?
A.Yes, we can produce and process according to your requirements.
3.Q. Do you have a quality control system?
A.Yes, we have our own quality control laboratory.
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