Product Introduction
304 stainless steel coil is the most widely used austenitic stainless steel, also known as 18/8 stainless steel. It features excellent corrosion resistance, formability, weldability and heat resistance, and is widely used in manufacturing, construction, electronics, food equipment and other fields.
| Product Name | Stainless Steel Coil |
| Tolerance | ±1% |
| Surface | 2B, BA, HL, NO.1, NO.4, 8K etc. |
| Steel Grade | 201, 202, 304, 304L, 316, 316L, 317L, 347H, 310s, 309S, 430, 904L, 2205, 2507 or costomized |
| Standard | AISI ASTM DIN JSGBJIS SUS EN |
| Thickness | 0.1-10mm or as required |
| Width | 50cm-2.2m or as required |
| Length | Customized(1-30t/coil) |
| Package | Standard Seaworth Packing |
| Application |
It is widely used in high-temperature and electric industry, medical devices, construction, chemistry, food industry, agriculture, and ship components. It also applies to food and beverage packaging, kitchen supplies, trains, aircraft, conveyor belts, vehicles, bolts, nuts, springs, and screen mesh etc. |
Material Grade & Chemical Composition
| Element | C | Si | Mn | P | S | Cr | Ni | Fe |
| Wt % | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.00–20.00 | 8.00–10.50 | Balance |
Grade equivalent: GB 06Cr19Ni10, ASTM 304 / S30400, JIS SUS304, EN 1.4301
Density: 7.93 g/cm³
Melting point: 1398–1454 °C
Manufacturing Process
Smelting: EAF + VOD/AOD refining to ensure purity and low carbon.
Continuous casting: Cast into slab or billet.
Hot rolling: Heating → descaling → hot rolling → coiling.
Cold rolling: Pickling → cold rolling → annealing → pickling → skin pass.
Finishing: Surface treatment → slitting/rewinding → inspection → packaging.
Dimensional Range and Tolerances
| Item | Standard Range | Typical Tolerance |
| Thickness | Cold rolled: 0.2–3.0 mm, Hot rolled: 1.5–14.0 mm | ±0.01–±0.08 mm (by thickness) |
| Width | 100–1500 mm | ±0.5–±2.0 mm |
| Inner diameter | 508 mm / 610 mm | Standard |
| Coil weight | 2–10 tons (customizable) | - |
Surface Finish Options
NO.1: Hot rolled, annealed, pickled (industrial rough surface)
2B: Cold rolled, annealed, pickled, skin passed (general smooth surface)
BA: Bright annealed (bright mirror-like)
NO.4 / 4K: Polished (hairline)
HL: Brushed (longitudinal hairline)
8K: Mirror polished
Execution Standard & Certifications
Standards: GB/T 3280, GB/T 4238, ASTM A240, JIS G4305, EN 10204
Certifications: ISO 9001, SGS, TÜV, Mill Test Certificate (MTC)
Main Applications
•Food equipment
kitchenware, food processing machinery
•Architectural decoration
elevator, ceiling, handrails
•Electronics & electrical
chassis, parts, shielding
•Mechanical manufacturing
structural parts, springs, fasteners
•Petrochemical & medical
low-corrosion components, pipelines
Packing and Delivery
• Packaging: Waterproof paper + plastic film + metal edge protection + fumigated wooden pallet
- Protection: Anti‑scratch PVC film available on request
- Shipping: Container shipping; air/express for small coils
- •Custom services: Slitting, cutting to length, chamfering, polishing
FAQs
Is your 304 stainless steel coil compliant with international standards?
Yes, All of our 304 stainless steel coils meet ASTM,AISI,GB standards, and we support and provide material test certificates third-party inspection
What custom services are available for 304stainless steel coils?
We have custom thickness and width, slitting and cutting to lenght,surface finish customization, and packaging customization
What is the typical lead time?
Most stock orders ship within 7-15days,custom orders depends on details.
What's the difference between 304 and 201/316 stainless steel?
304 offers good corrosion resistance at a cost-effective price. It is more durable than 201 and more affordable than 316, widely used for general applications.
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