| 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 titanium-stabilized chromium-nickel austenitic stainless steel, offering corrosion resistance comparable to 304/304L. This grade is highly favored for applications within the 800-1500˚F temperature range. Stabilized against chromium carbide precipitation through the addition of titanium, it forms titanium carbides, which significantly bolster its properties. Type 321 boasts superior intergranular corrosion resistance and oxidation resistance up to 1500˚F. It also demonstrates enhanced creep and stress rupture qualities compared to 304/304L, maintains strength at low temperatures, and remains non-magnetic when annealed.
At Daxun Stainless Steel, we ensure full traceability of each stainless steel coil through our advanced ERP system, detailing type, specification, and origin. We are staunch advocates of industry anti-counterfeiting measures. Leveraging cutting-edge technology, we set the industry benchmark for high-precision and high-quality processing and customization. Our comprehensive service model includes pre-sales professional material selection and processing solutions, stringent monitoring during sales, and seamless post-sales service guarantees. We champion product life cycle management to deliver exceptional value.
Quality, Delivery, Inspection
- Daxun conducts rigorous quality assurance tests including flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests. These stringent tests ensure our materials meet the highest standards and are suitable for their intended applications.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface of our products. Our standard delivery timeline is 7-15 days; however, for uniquely sized products, it may extend up to 20 days.
Our delivery timelines are strictly adhered to as per the contract agreements.
- We support inspections by third-party agencies at our factory.
- We offer free samples to customers for testing purposes.
- We welcome on-site or video factory inspections.
Ordering Information
Purchase orders should specify quantity, grade, type or category, API5L reference, thickness, width, length, and any additional requirements related to chemical composition, mechanical properties, heat treatment, extra testing, manufacturing process, surface coating, or end finish. Contact Daxun today, and we will respond to your email promptly.
Daxun's illustrious journey in the stainless steel sector began in 2003. Over the past two decades, this dynamic company has surged to the forefront of China's industry, consistently leading the way in stainless steel materials and processing.
With over 20 years of expertise in overseas markets, Daxun has firmly established itself as a global powerhouse. In 2022, our export revenue soared beyond US$100 million, earning us a top ranking among China's stainless steel trade and processing companies. We have strategically positioned three export service bases across China, and collaborate closely with engineering firms, steel mills, and international trading companies to bolster our reach in overseas markets. Our unwavering commitment to enhancing service capabilities ensures we continuously expand our global footprint.
Daxun International offers a comprehensive stainless steel chain supermarket service, maintaining long-standing relationships with numerous renowned steel mills worldwide. Our impressive stock includes 60,000 tons of standard stainless steel and 20,000 tons of specialty metals such as duplex steel, nickel-based alloys, and heat-resistant steel. At Daxun International, quality is paramount-our stainless steel materials are authentic, with a vast array of varieties, specifications, and delivery weights adhering strictly to industry standards.
Daxun is equipped with state-of-the-art steel processing equipment, a cutting-edge physical and chemical testing center, and diverse processing lines including cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying.
Our services span over 30 industries, ranging from automobiles and home appliances to elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, energy equipment, and more. By partnering with esteemed steel mills and research institutes, we deliver seamless integrated services from project design and material development to processing and manufacturing process optimization.
321Stainless 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 wide range of general steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, 316, 316L 300 series, and more.
Additionally, we specialize in 400 series and duplex stainless steel such as 2205, 2304, 2101, 2507, and high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Certainly! We can manufacture products precisely as per your drawings to ensure complete satisfaction.
Q3. How does your factory do regarding quality control?
Quality is our top priority. We implement rigorous quality control measures from start to finish to ensure exceptional standards.
Q4. Can I request to change the form of packaging and transportation?
Absolutely! We can modify the packaging and transportation form to suit your requests,
though you will need to cover any additional costs incurred during this process.
Q5. How does your factory do regarding quality control?
Quality is our top priority. We implement rigorous quality control measures from start to finish to ensure exceptional standards.
Q6. How long is the delivery time?
A: Typically, delivery takes between 7 to 20 working days after payment confirmation.
For urgent orders, we will expedite production to meet your needs.
Q7. What is your Payment?
A: 100% T/T in advance, or Western Union for small orders.
B: 30% T/T in advance and the remaining 70% 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 ideal for stainless steel pots, sinks, bowls, etc. Let us know your needs, and we'll adjust mechanical properties accordingly.
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 specifics.
Q10: Which countries have you exported to?
A: We have exported stainless steel materials to countries including 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 a pick-up for you.
Audited Supplier 
){kind=link}
){kind=link}