ASTM A312 TP321 is a specification for seamless, welded, and heavily cold worked austenitic stainless steel pipes. TP321 stainless steel has high lasting strength, high oxidation resistance, and good tissue stability and is often used in high-temperature applications.
United Steel Industry Co., Ltd. is China's leading manufacturer of ASTM A312 TP321 stainless steel seamless pipes. Due to our professionalism, good quality and more market competitiveness, our annual export volume is around 6,000 tons. You are welcome to visit our company, you can visit our factory's production scale and testing equipment. We will provide all customers with the best quality, competitive price and reliable TP321 (0Cr18Ni9Ti; 1.4541) stainless steel seamless pipes.
Chemical Composition of ASTM A312 TP321 SS Seamless Pipe:
|
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) |
|
321H |
min. |
0.04 |
2.00 |
0.75 |
0.045 |
0.030 |
17.0 |
- |
9.0 |
- |
Ti=4(C+N) |
Mechanical Properties of ASTM A312 TP321 SS Seamless Pipe:
|
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 |
|
321H |
515 |
205 |
40 |
95 |
217 |
|
321H also has a requirement for a grain size of ASTM No 7 or coarser. |
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Physical Properties of ASTM A312 TP321 SS Seamless Pipe:
|
Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (μm/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Electrical Resistivity (nΩ.m) |
|||
|
0-100°C |
0-315°C |
0-538°C |
at 100°C |
at 500°C |
|||||
|
321 |
8027 |
193 |
16.6 |
17.2 |
18.6 |
16.1 |
22.2 |
500 |
720 |
Services of ASTM A312 TP321 SS Seamless Pipe:
1. Pipe length can be standard length or customized length
2. Can be made into flat or beveled ends according to customer requirements, and use plastic covers to protect the pipes from damage and dust.
3. If you need custom coating or special surface treatment, please let us know.
4. Better Steel Pipe's stainless steel pipe inventory includes many hard-to-find sizes and grades as well as all common stainless steel pipe grades and sizes.
Packaging of ASTM A312 TP321 SS Seamless Pipe:
- Bundle (Hexagonal)
- Wooden box
- Crate (steel/wood)
- Special crates for U-bends, separated for each radius
- Our ASTM A312 TP321 stainless steel pipe packing can meet any needs of our customers.
United Steel Industry As the most important steel pipe manufacturer and exporter in China, in the past 20 years, we have completed more than 100 projects, with partners in more than 100 countries, and established relationships with oil and gas and EPC companies in many countries business relationship.
For more information about the product price, catalog and rolling mill inspection certificate,
please consult:Email:Sales@usisteels.com
