Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of 18-8 stainless steel in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
18-8 Stainless Steel, also known as 304 stainless steel or AISI 304, is a high-quality austenitic stainless steel widely used for its excellent corrosion resistance, durability, and formability. Available in sheets, strips, coils, and fabricated parts, 18-8 stainless steel is ideal for kitchenware, food processing equipment, medical instruments, architectural decoration, chemical tanks, and industrial hardware. Our products meet ASTM A240, A666, EN 10088, and JIS G4304 standards, providing reliable performance for OEM projects, precision fabrication, and custom stainless steel solutions.
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Products Description
Product Name: 18-8 Stainless Steel
Alias: 304 Stainless Steel, 18/8 SS
Standards: ASTM A240, A666 / EN 10088 / JIS G4304
Surface Finish: 2B, BA, No.4, Hairline, Mirror 8K
Material/Grade: 304 / 304L
Available Specifications (Metric + Imperial)
| Form | Thickness | Width | Length | Tolerance |
|---|---|---|---|---|
| Sheet | 0.3–6.0 mm | 1000–1500 mm | 2000–4000 mm | ±0.02–0.08 mm |
| Coil | 0.3–3.0 mm | 1000–1500 mm | Custom | ±0.02–0.05 mm |
| Strip | 0.02–3.0 mm | 3–600 mm | Coil or cut-to-length | ±0.01–0.2 mm |
Chemical Composition (Typical, %)
| Element | 304 | 304L |
|---|---|---|
| C | ≤0.08 | ≤0.03 |
| Mn | ≤2.0 | ≤2.0 |
| Si | ≤1.0 | ≤1.0 |
| P | ≤0.045 | ≤0.045 |
| S | ≤0.03 | ≤0.03 |
| Cr | 18.0–20.0 | 18.0–20.0 |
| Ni | 8.0–11.0 | 8.0–12.0 |
Mechanical Properties
| Property | 304 | 304L |
|---|---|---|
| Tensile Strength (MPa) | ≥520 | ≥485 |
| Yield Strength (MPa) | ≥210 | ≥170 |
| Elongation (%) | ≥40 | ≥45 |
| Hardness (HB) | ≤180 | ≤170 |
Surface Finish Options
| Finish | Description | Typical Application |
|---|---|---|
| 2B | Smooth matte | General industrial use |
| BA (Bright Annealed) | Reflective, bright | Kitchen, medical, electronics |
| No.4 | Satin brushed | Appliances, elevator panels |
| Hairline (HL) | Long, continuous lines | Architectural decoration |
| Mirror 8K | Super reflective | Luxury interiors, signage |
Product Features
Excellent corrosion resistance to air, water, food acids, and chemicals
Durable, hygienic, and easy to clean
Non-magnetic in annealed state
High formability, suitable for bending, deep drawing, stamping
Wide availability in sheets, coils, and strips
Products Applications
Kitchenware and utensils
Food and beverage processing equipment
Medical instruments and laboratory equipment
Chemical and pharmaceutical tanks
Architectural panels and decorative cladding
Industrial machinery and hardware
For pricing, samples, or custom 18-8 stainless steel solutions, please contact:
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
Inspection & Quality Assurance
Raw material chemical and mechanical testing
Thickness, width, flatness, and surface finish inspection
Tensile, elongation, and hardness tests
Surface roughness (Ra) measurement for polished sheets
MTC provided according to EN 10204 3.1 / 3.2
Third-party inspection: SGS / BV / TUV available
FAQ
1. What does "18-8" mean in stainless steel?
It refers to 18% chromium and 8% nickel, which provides austenitic structure and excellent corrosion resistance.
2. What is the difference between 304 and 304L?
304L has lower carbon content for better weldability and reduced carbide precipitation during welding.
3. Can 18-8 stainless steel be used in marine environments?
Yes, it offers good resistance to freshwater and mild seawater, but for prolonged exposure to chlorides, 316 or duplex grades are recommended.
4. What surface finish is best for decorative purposes?
Mirror 8K or Hairline (HL) are preferred for visual aesthetics.
5. What forms are available?
Sheets, coils, strips, and cut-to-length pieces.
6. Can 18-8 stainless steel be polished or coated?
Yes. Available surface treatments include polishing, brushing, BA, mirror, and PVD color coating.
7. What is the typical lead time for 18-8 stainless steel sheets or strips?
Stock sizes: 5–7 days
Custom thickness or finish: 10–15 days
PVD or special polishing: 15–25 days
8. Do you provide certificates and test reports?
Yes, MTC (EN 10204 3.1 / 3.2), chemical composition, mechanical tests, and optional third-party inspection reports are available.
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