A358 TP321H Stainless Steel Pipe
Is a leading manufacturer, supplier and exporter of A358 321H pipes. The stainless steel pipes we produce are widely demanded worldwide for their remarkable properties such as optimum finish, corrosion resistance, dimensional accuracy and durability.
A358 321H stainless steel welded pipe is a modified type of 321 stainless steel with higher carbon content to provide higher high temperature strength.
A358 321H austenitic stainless steel pipe has titanium added to the chromium-nickel stainless steel to prevent intergranular corrosion, especially during welding to prevent intergranular corrosion in the heat affected zone after welding. Therefore, A358 TP321H steel pipe is often used to manufacture steel pipes and pipe fittings such as boiler superheaters, heat exchangers, condensers, catalytic tubes, cracking tube units, etc.
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ASTM A358 Grade 321H Stainless Steel Pipes Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
| 321H | min. max |
0.04 0.10 |
2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 |
- | 9.0 12.0 |
- | Ti=4(C+N) 0.70 |
ASTM A358 Grade 321H Stainless Steel Pipes 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 | ||||
| 321H | 515 | 205 | 40 | 95 | 217 |
A358 321H seamless heat exchanger tube
Advantages of GNEE
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.
GneeGroup participated in the exhibition
FAQ
1. Strong stainless steel production capacity, technology and quality control system.
2. Evaluate suppliers and credit companies.
3. A foreign trade sales team with professional services and a high reputation in overseas markets.
4. The core team has more than 10 years of experience in steel pipe foreign trade business to ensure that your order is worry-free.
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