Stainless Steel 321H pipes exemplify a remarkable blend of resilience and temperature resistance, making them an indispensable choice for applications requiring durability in high-temperature environments. With a higher carbon content compared to standard 321 stainless steel, 321H pipes are meticulously engineered to endure the demanding conditions of elevated temperatures and thermal cycling. The increased carbon content stabilizes the material against sensitization and carbide precipitation, enhancing its resistance to intergranular corrosion. These pipes are an optimal choice for applications in industries such as power generation, petrochemicals, and heat exchangers, where consistent performance at elevated temperatures is imperative.
The versatility of Stainless Steel 321H pipes becomes apparent through their ability to thrive in both corrosive and high-temperature environments. Their resistance to oxidation and scaling, even at temperatures exceeding 870°C (1600°F), solidifies their position as a prime candidate for applications subjected to harsh conditions. Whether in furnace components, exhaust systems, or thermal processing equipment, these pipes showcase their ability to endure thermal stress and maintain their structural integrity in the face of extreme heat.
In addition to their exceptional high-temperature capabilities, Stainless Steel 321H pipes offer the benefits of weldability and formability. The enhanced resistance to sensitization during welding processes ensures that the pipes retain their corrosion resistance and mechanical properties even after fabrication. This makes them a reliable choice for industries that require precision welding to create intricate structures or complex systems. As an embodiment of advanced metallurgical engineering, Stainless Steel 321H pipes bridge the gap between strength, temperature resistance, and versatility, serving as a reliable cornerstone in industries where withstanding extreme thermal environments is a prerequisite for success.
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Specification:
Grade: Stainless Steel 321H
Sizes (Seamless): 1/2" NB - 24" NB
Sizes (ERW): 1/2" NB - 24" NB
Sizes (EFW): 6" NB - 100" NB
Wall Thickness: Schedule 5S - XXS
Length: Single Random, Double Random, Cut Length
Form: Round, Square, Rectangular, Hydraulic, etc.
Ends: Plain End, Beveled End, Threaded End
Surface Finish: Annealed and Pickled, Polished, Bright Annealed
Corrosion Resistance: Excellent
Temperature Resistance: Up to 1000°C (1832°F)
Weldability: Good
Chemical Composition 321H Stainless Steel Pipes
| Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Chromium (Cr) | Nickel (Ni) | Titanium (Ti) | Iron (Fe) |
| Chemical Composition (% by weight) | 0.04 - 0.10 | 0.75 max | 2.00 max | 0.045 max | 0.030 max | 17.00 - 19.00 | 9.00 - 12.00 | 4x(C+N) min, 0.70 max | Balance |
Mechanical Properties of 321H Stainless Steel Pipes
| Property | Tensile Strength | Yield Strength (0.2% offset) | Elongation at Break | Modulus of Elasticity | Poisson's Ratio | Hardness (Rockwell B) | Hardness (Rockwell C) |
| Value | 515 MPa (74,700 psi) | 205 MPa (29,800 psi) | 40% | 193 GPa (28,000 ksi) | 0.3 | 85 (Brinell scale) | 187 |
Advantages of 321H Stainless Steel Pipes:
- Good general corrosion resistance and high strength
- Good sulfide stress corrosion resistance
- Resistance to chloride pitting and crevice corrosion
- Higher resistance to chloride stress corrosion cracking
- Easy to weld and conform
Some of Our Specialities that make us a profitable Business Partner for our clients are :
- Customer focused approach
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- Customize Size & Specification
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Applications Industry
| Pharmaceutical Equipment | Chemical Equipment |
| Sea Water Equipment | Heat Exchangers |
| Heat Exchangers | Gas Processing |
| Condensers | Specialty Chemicals |
| Pulp and Paper Industry | Pharmaceuticals |
We supply Pipes, Tubes & Fittings Worldwide.
Exporting Steel Pipes & Tubes to over 60 countries including Afghanistan, Albania, Andorra, Angloa, Austria, Australia, Bahrain, Bangladesh, Bhutan, Brazil, Brunei, Belarus, Belgium, Bulgaria, Cambodia, China, Cyprus, Croatia, Czech Republic, Canada, Denmark, Estonia, Egypt, Finland, France, Germany, Greece, Georgia, Hungary, Iceland, Ireland, Italy, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Latvia, Latin America, Liechtenstein, Lithuania, Luxembourg, Malta, Madagascar, Mexico, Moldova, Monaco, Malaysia, Maldives, Mongolia, Myanmar (Burma), Nepal, New Zealand, North Korea, Netherlands, Norway, Nigeria, Oman, Poland, Portugal, Pakistan, Palestine, Philippines, Qatar, Russia, Romania, Russia, San Marino, Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Saudi Arabia, Singapore, South Korea, South Africa, Sri Lanka, Sudan, Syria, Taiwan, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, United Arab Emirates (UAE), Uzbekistan, Venezuela, Vietnam, Yemen, etc.