Products Description
321h stainless steel pipe
The 321h stainless steel pipe works as a titanium-stabilized version of austenitic stainless steel. It brings along several strong features from the start. A key benefit comes from its excellent guard against intergranular corrosion. This holds up well even after time in high temperatures. The titanium addition creates stable carbides that block chromium carbides from building up at grain lines. As a result, it lasts much longer in heat-treated or welded uses. Regular stainless steel pipes do not match that durability level.
Product Specifications & Parameters
|
Category |
Item |
Specification/Value |
|---|---|---|
|
Product Specifications |
Outer Diameter (OD) |
6mm - 630mm |
|
Wall Thickness (WT) |
0.8mm - 50mm |
|
|
Length |
3m - 12m (Customizable) |
|
|
Surface Finish |
Bright Annealed, Pickled & Passivated, Polished (2B, BA, 304#, 400#) |
|
|
Chemical Composition (wt%) |
Carbon (C) |
0.04 - 0.10 |
|
Chromium (Cr) |
17.00 - 19.00 |
|
|
Nickel (Ni) |
9.00 - 12.00 |
|
|
Titanium (Ti) |
5×C - 0.70 |
|
|
Manganese (Mn) |
≤2.00 |
|
|
Silicon (Si) |
≤1.00 |
|
|
Phosphorus (P) |
≤0.045 |
|
|
Sulfur (S) |
≤0.030 |
|
|
Mechanical Properties |
Tensile Strength (σb) |
≥515 MPa |
|
Yield Strength (σ0.2) |
≥205 MPa |
|
|
Elongation (δ5) |
≥40% |
|
|
Hardness (HB) |
≤187 |
|
|
Impact Toughness (AKV) |
≥100 J/cm² |
Beyond the standard ranges listed, we offer flexible customization for the 321H stainless steel pipe's outer diameter, wall thickness, and length to perfectly match your specific project requirements.
The 321H stainless steel pipe features a balanced chemical composition, with chromium (17.00-19.00%) and nickel (9.00-12.00%) forming its corrosion-resistant base, while titanium (5×C-0.70%) stabilizes carbides to avoid intergranular corrosion, a key advantage for high-temperature applications.
Our 321H stainless steel pipe boasts excellent mechanical properties that underpin its industrial reliability: with tensile strength ≥515 MPa and yield strength ≥205 MPa, it delivers robust load-bearing capacity. Its elongation rate of over 40% ensures good formability, while the impact toughness ≥100 J/cm² and hardness ≤187 HB balance toughness and structural stability, making it adaptable to diverse stress scenarios.
Company & Factory Scale
Jiangsu Cunrui Metal Products Co., Ltd. makes and supplies stainless steel pipes as a professional outfit. They have more than 15 years in the industry. The company sits in Jiangsu Province, which counts as a big industrial spot in China. Their factory takes up 30,000 square meters. It comes with five advanced lines for things like cold rolling, hot rolling, annealing, and precision cutting. That setup lets them produce 5,000 tons a year. They handle small custom batches pretty much as well as big orders.
Being a direct manufacturer helps them keep prices 10 to 15 percent below what the market usually charges. They skip the middlemen for that. A solid QC team runs checks with advanced gear, like ultrasonic flaw detectors. Every 321H stainless steel pipe hits the standards that way. Full certifications cover them, including ISO9001, API 5L, and CE. Products move into global markets without much hassle. They even offer third-party shipping through places like Hong Kong or Singapore. That helps clients dodge tariffs in a way.
Packaging, Logistics & Transportation
We take care to get the 321H stainless steel pipes to clients without any issues at all. That involves using strong packaging approaches that follow proven methods. Smaller diameter pipes get plastic caps on both ends to keep them safe. We wrap those pipes in film that blocks out moisture too. Then we load them into wooden crates or sturdy steel frames for the trip. Larger diameter pipes need extra protection between each one with anti-collision pads. Steel straps hold everything in place firmly to stop damage from moving around during transport. Clients can ask for custom touches in the packaging if they want. That might include adding their own logos or particular labels on the outside.
Our logistics setup works with big names in shipping that we trust over the long term. Companies like DHL, FedEx, Maersk, and COSCO handle the details for us. Options cover sea freight for bulk loads, air freight when speed matters, and land transport for closer spots. We ship to main ports and cities pretty much anywhere in the world. Trained staff keep an eye on the whole process in real time. They send updates right away about where the cargo stands. Urgent jobs get fast-tracked services to hit delivery deadlines without fail.
Quality Control
Our 321H stainless steel pipe comes with a full suite of authoritative certifications, including ISO9001 Quality Management System Certification, API 5L, and CE. These credentials, recognized globally, validate its compliance with strict international standards, ensuring seamless access to markets worldwide.
We warmly welcome clients worldwide to visit our factory in person. Our 321H stainless steel pipe has gained trust from customers across Europe, America, Southeast Asia and more, and we look forward to face-to-face communication to deepen mutual understanding and cooperation.
Our 321H stainless steel pipe, paired with professional services, has won consistent praise from numerous clients, who are eager to establish long-term cooperative relationships with us. Choosing Jiangsu Cunrui Metal means partnering with quality and reliability for mutual growth.
FAQ
1.Are You Manufacture or Trade Company?
We are manufacture,we have 20 years experience for supply Metal material and products.
Jiangsu Cunrui Metal Products Co., Ltd. - Your Trusted Partner for 321h Stainless Steel Pipe.
Contact us now for more information and the best quotation!
