| 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, offering corrosion resistance on par with 304/304L. It excels in the 800-1500˚F temperature range, thanks to titanium that prevents chromium carbide precipitation by forming titanium carbides. Known for superior intergranular corrosion resistance and oxidation resistance up to 1500˚F, Type 321 outperforms 304/304L in creep and stress rupture strength. It remains strong at low temperatures and retains its non-magnetic properties when annealed.
At Daxun Stainless Steel, every coil's full traceability is ensured through our ERP system, detailing type, specification, and origin. We are staunch advocates for anti-counterfeiting in the industry. Leveraging advanced processing technology, Daxun is the benchmark for high precision and superior quality. Our service excellence extends across the product lifecycle: from offering expert material selection and processing solutions before sales, through rigorous monitoring during sales, to providing worry-free service guarantees post-sales.
Quality, Delivery, Inspection
- Daxun conducts comprehensive quality assurance tests including flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests. These rigorous evaluations ensure our materials meet the highest standards for their intended applications.
- During production, we meticulously measure product diameter, thickness, and surface quality. Our standard delivery time is 7-15 days, though for special size products, delivery may extend to 20 days.
Our delivery schedule strictly adheres to the contract terms.
- Support for customer third-party agencies to conduct factory inspections
- We offer free samples to customers for testing
- We support both on-site and video factory inspections
Ordering Information
Purchase orders should detail quantity, grade, type or category, API5L reference, thickness, width, length, and any specific requirements related to chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Reach out to Daxun now; we promise a prompt email response.
Established in 2003, Daxun's stainless steel business has flourished over the past two decades. Today, our high-quality stainless steel materials and exceptional processing services are recognized as industry leaders across China.
With over 20 years of experience in global markets, Daxun's export revenue surpassed US$100 million in 2022, placing us among the top stainless steel trade and processing companies in China. Our strategic expansion includes three export service bases in China, in collaboration with engineering firms, steel mills, and international trading companies, to cater to overseas markets. Our continuous improvement in service capabilities and robust partnerships are driving our international growth.
Daxun International offers comprehensive stainless steel chain supermarket services and maintains long-term partnerships with renowned steel mills worldwide. Our inventory 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. We guarantee the authenticity and superior quality of our stainless steel products, strictly adhering to industry standards for variety, specification, and delivery weights.
Our state-of-the-art facilities include multiple steel processing equipment, a cutting-edge physical and chemical testing center, and advanced processing lines for cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying.
We serve over 30 industries, including automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. By collaborating with steel mills, research institutes, and other institutions, we deliver comprehensive services from project design and material development to processing and manufacturing process optimization.
321 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 can provide a wide array of steel products, including general steel types like 310S, 316L, 304, 304L, 201, 904L, 316H, 316, and 316L 300 series.
400 series, duplex stainless steel such as 2205, 2304, 2101, 2507, etc., and high-nickel alloys like 904L, 800H, and 600H.
Q2. Can you produce the products according to my own drawings?
Absolutely, we can manufacture products based on your drawings to ensure complete satisfaction.
Q3. How does your factory do regarding quality control?
Quality is our top priority. We consistently enforce stringent quality control measures from start to finish.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can adapt the packaging and transportation to meet your specific requirements,
though you will need to cover any additional costs and differences incurred.
Q5. How does your factory do regarding quality control?
Quality is our top priority. We consistently enforce stringent quality control measures from start to finish.
Q6. How long is the delivery time?
A: Delivery ranges from 7 to 20 working days after payment confirmation.
For urgent orders, we expedite production to meet your deadlines.
Q7. What is your Payment?
A: 100% T/T in advance, 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, our materials are suitable for deep drawing applications such as stainless steel pots, sinks, and bowls. Simply inform us of your needs, and we'll tailor the mechanical properties accordingly.
Q9: How to get a sample?
A: FREE samples are available for evaluation. For small sample pieces, we may cover the courier cost depending on the situation.
Q10: Which countries have you exported to?
A: We have successfully exported stainless steel materials to various countries including Vietnam, Thailand, Turkey, Russia, Morocco, Korea, India, Pakistan, UAE, Ukraine, and many more.
Q11: How can I visit your company?
A: Fly to Guangzhou Baiyun International Airport, and we will arrange to pick you up from there.
Audited Supplier 
){kind=link}
){kind=link}