| SS321 Stainless Steel Coil Specification |
ASTM A240 / ASME SA240 |
| SS321 Stainless Steel Coil Manufacturing Process |
Hot Rolled (HR) / Cold Rolled (CR) |
| SS321 Stainless Steel Coil Grades |
202 / SS321 / SS321L / SS321H / 309S / 310S / 316 / 316L / 316Ti / 317L / 321 / 321H / 347 / 347H / 904L etc. |
| UNS No. - UNS SSS32100, UNS SSS32103, UNS S31008, UNS S31620, UNS S31603, UNS S31603, UNS S31635, UNS S31703, UNS S32100, UNS S34700, UNS S34709, UNS S8904 |
| EN No. - 1.4301, 1.4307, 1.4845, 1.4401, 1.4404, 1.4571, 1.4438, 1.4541, 1.4550, 1.4551, 1.4539 |
| SS321 Stainless Steel Coil Thickness |
0.6 MM TO 80 MM THICKNESS |
| SS321 Stainless Steel Coil Width |
1250 MM / 1500 MM / 2000 MM / 04 Feet / 05 Feet and Custom Cut Width as Per Requirement |
| SS321 Stainless Steel Coil Length |
2400 MM / 2420 MM / 6000 MM / 08 Feet / 10 Feet / Coil Cut and Custom Cut Length as Per Requirement |
| SS321 Stainless Steel Coil Surface Finish |
2B, 2D, BA, MATT, MATT PVC, No.4, No.5, SB, HR, No.8, Mirror, Hairline, Brush, Textured, Oil base wet Polished, Both sides Polished available. |
| SS321 Stainless Steel Coil Coating |
PVC coating Normal / Laser, Film: 100 micrometer, Color: black/white. |
| SS321 Stainless Steel Coil Other Testing |
NACE MR0175, Ultrasoung TEST, IGC TEST, Intergranular Corrrosion Test as per ASTM A262 Practice E, Charpy Impact Test, Macro, Grain Size, Hardness, etc. |
| SS321 Stainless Steel CoilValue Added Services |
Gas Cutting / CNC Plasma Cutting / Profiling / Rolling / Bending / Sheet Metal Fabrication / Drill / Punch / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
| SS321 Stainless Steel Coil Packaging |
Loose / Carrate / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps |
| SS321 Stainless Steel Coil Shipment & Transportation |
By Road - Truck / Train Partial Load, Full Load, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
| SS321 Stainless Steel Coil Material Test Certificate |
Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS, Bureau of Indian Standards BIS Approved ETC |
| Manufacturer |
POSCO, Aperam, Jindal Stainless, DKC Korea, Thyssenkrup, Baosteel, TISCO,Arcelor Mittal, VDM,Nippon Metal, Qingshan,Delong. |
| Shipping Port |
Shanghai/Ningbo port/Tianjin/Qindao |
Global Leader in Stainless Steel Coil Fabrication Services
Type 321 is a premium titanium-stabilized chromium-nickel austenitic stainless steel known for its exceptional corrosion resistance, comparable to the 304/304L grades. This superior grade thrives in the 800-1500˚F temperature range, thanks to its stabilization against chromium carbide precipitation through titanium addition, forming robust titanium carbides. Type 321 stands out with remarkable intergranular corrosion resistance, oxidation resistance up to 1500˚F, and enhanced creep and stress rupture properties compared to 304/304L. It also boasts excellent strength at low temperatures and remains non-magnetic when annealed.
Daxun Stainless Steel champions full traceability for each stainless steel coil via an advanced ERP system, covering type, specification, and origin, and is a staunch advocate for industry anti-counterfeiting measures. Leveraging cutting-edge technology, Daxun sets the industry benchmark with high-precision and top-quality processing and customization. Our comprehensive service approach includes pre-sales professional material selection and processing solutions, rigorous monitoring during sales, and post-sales worry-free service guarantees, ensuring product life cycle management.
Quality, Delivery, Inspection
- At Daxun, we conduct rigorous quality assurance tests to guarantee material suitability for the intended application. These include flattening tests, pitting and resistance tests, mechanical tests, hardness tests, material positive identification, and expansion tests, ensuring the highest standards of quality and reliability.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface of each product. Our standard delivery time ranges from 7-15 days, with special size products extending up to 20 days.
Our delivery schedules are strictly adhered to as per contractual agreements.
- We welcome third-party agency inspections at our factory.
- We offer free sample support for customer testing.
- We provide on-site or video-based factory inspections for customer convenience.
Ordering Information
When placing purchase orders, please include the quantity, grade, type or category, API5L reference, thickness, width, length, and any additional requirements or attachments concerning chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Contact Daxun now, and we will respond to your email promptly.
Daxun's journey in the stainless steel business commenced in 2003. Over the past two decades, it has rapidly ascended to become a leader at the vanguard of China's stainless steel industry, offering materials and processing services of unmatched quality.
With over 20 years of expertise in international markets, Daxun proudly reported export revenues surpassing US$100 million in 2022, cementing its status among China's top stainless steel trade and processing firms. We have established three robust export service bases within China and collaborate seamlessly with engineering companies, steel mills, and global trading firms to serve overseas markets. Our relentless pursuit of excellence and enhanced service capabilities ensure that we continue to thrive and expand our global footprint.
Daxun International offers a comprehensive stainless steel supply chain service, forged through long-term alliances with numerous prestigious steel mills globally. Our inventory boasts 60,000 tons of conventional stainless steel and 20,000 tons of specialty metals including duplex steel, nickel-based alloys, and heat-resistant steel. We pride ourselves on the impeccable authenticity and superior quality of our stainless steel materials, with all varieties, specifications, and delivery weights adhering strictly to rigorous standards.
Equipped with state-of-the-art steel processing machinery, Daxun boasts a professional physical and chemical testing center and an array of processing lines encompassing cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying. This comprehensive setup ensures precision and excellence in every product.
Our services span over 30 diverse sectors including automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. Partnering with steel mills, research institutes, and various institutions, we deliver integrated solutions from project design and material development to the optimization of processing and manufacturing processes.
321321 Stainless Steel Coil Chemical Composition
| Element |
Type 321 |
Element |
Type 322 |
Element |
Type 323 |
Element |
Type 324 |
| Carbon |
0.08 max. |
Carbon |
0.09 max. |
Carbon |
0.10 max. |
Carbon |
0.11 max. |
| Manganese |
2.00 max. |
Manganese |
2.01 max. |
Manganese |
2.02 max. |
Manganese |
2.03 max. |
| Sulfur |
0.030 max. |
Sulfur |
0.031 max. |
Sulfur |
0.032 max. |
Sulfur |
0.033 max. |
| Phosphorus |
0.045 max. |
Phosphorus |
0.046 max. |
Phosphorus |
0.047 max. |
Phosphorus |
0.048 max. |
| Silicon |
0.75 max. |
Silicon |
0.76 max. |
Silicon |
0.77 max. |
Silicon |
0.78 max. |
| Chromium |
17.00 - 19.00 |
Chromium |
17.00 - 19.01 |
Chromium |
17.00 - 19.02 |
Chromium |
17.00 - 19.03 |
| Nickel |
9.00 - 12.00 |
Nickel |
9.00 - 12.01 |
Nickel |
9.00 - 12.02 |
Nickel |
9.00 - 12.03 |
| Titanium |
5x(C+N) min. - 0.70 max. |
Titanium |
5x(C+N) min. - 0.71 max. |
Titanium |
5x(C+N) min. - 0.72 max. |
Titanium |
5x(C+N) min. - 0.73 max. |
| Nitrogen |
0.10 max. |
Nitrogen |
0.11 max. |
Nitrogen |
0.12 max. |
Nitrogen |
0.13 max. |
321 Stainless Steel Coil Mechanical Properties
| Type |
Yield Strength 0.2% offset (KSI) |
Tensile Strength (KSI) |
% Elongation (2″ Gauge length) |
| 321 |
30 min. |
75 min. |
40 min. |
321 Stainless Steel Coil Physical Properties
| Density (lb./ in^2) @ RT |
|
0.29 |
| Modulus of Elasticity in Tension (psi x 10^6) |
|
28 |
| Specific Heat (BTU/o F/lb.) |
32 to 212 oF |
0.12 |
| Thermal Conductivity (BTU/hr/ft^2/ft) |
212oF |
9.3 |
| |
932oF |
12.8 |
| Mean Coefficient of Thermal Expansion (in. x 10^-6 per o F) |
32 to 212oF |
9.2 |
| |
32 to 600oF |
9.5 |
| |
32 to 1,000oF |
10.3 |
| |
32 to 1,200oF |
10.7 |
| Electrical Resistivity (micro ohms - cm) |
at 70oF |
28.4 |
| Melting Point Range (oF) |
|
2500 - 2550 |
Q1: What products can you offer?
A: We proudly offer a diverse range of steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 300 series.
Additionally, we provide 400 series and duplex stainless steels such as 2205, 2304, 2101, 2507, 904L, 800H, and 600H high-nickel alloys.
Q2. Can you produce the products according to my own drawings?
Yes, we can meticulously craft products according to your specific drawings to meet your utmost satisfaction.
Q3. How does your factory do regarding quality control?
Quality is our top priority. We consistently emphasize rigorous quality control from inception to completion.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can alter the packaging and transportation methods as per your request.
Please note that any additional costs and price differences incurred during this period will be your responsibility.
Q5. How does your factory do regarding quality control?
Quality is our top priority. We consistently emphasize rigorous quality control from inception to completion.
Q6. How long is the delivery time?
A: Typically, it takes 7-20 working days after payment confirmation.
For urgent orders, we can expedite processing to meet your deadlines.
Q7. What is your Payment?
A: 100% T/T in advance or via Western Union for small orders.
B: 30% T/T upfront, with the remaining 70% due before shipment.
C: 100% Irrevocable LC at sight for large orders.
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Yes, we can. Our materials are suitable for stainless steel pots, sinks, bowls, etc. Specify your application, and we will adjust the mechanical properties to meet your needs.
Q9: How to get a sample?
A: FREE samples are available for your inspection and testing. For small pieces, we may cover courier costs, depending on the situation.
Q10: Which countries have you exported to?
A: To date, we have exported stainless steel materials to Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and more.
Q11: How to visit your company?
A: Fly to Guangzhou Baiyun International Airport, and we will arrange for your pickup.
Audited Supplier 
){kind=link}