303 stainless steel is a free machining, austenitic, nickel stainless steel that is used primarily for parts requiring machining, grinding or polishing. The sulfur addition present in 303 SS assists in breaking up turnings which reduces drag on cutting tools. This alloy offers good corrosion resistance and oxidation resistance in mild environments and excellent forming properties. It is non-magnetic in the annealed condition, is not hardenable by heat treatment – it can only be work hardened through cold working. It is also difficult to weld, and may require filler rods and post-weld annealing to maintain corrosion resistance.
Product Description:
| Product Name | Stainless Steel Coils Grade 303 |
| Size | as required |
| Width | 1000mm,1220mm,1250mm or as required |
| Thickness | 0.3mm-80mm or as required |
| Standard | AISI /ASTM,JIS,GB,UNS |
| Technique | Hot rolled / cold rolled |
| Surface Treatment | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, chequered, embossed, hairline, sand blast, Brush, etching, Hot rolled plate (HR), Cold rolled sheet (CR), SATIN (Met with Plastic Coated) etc |
| Thickness Tolerance | ±0.01mm~ ±0.25mm |
| Material | 303 Stainless steel |
| Application | Petroleum, electronics, chemical industry, medicine, light textile, food, machinery, construction, nuclear power, aerospace, military industry and so on. |
| MOQ | 1 ton , We can accept sample order. |
| Shipment Time | Within 15-20 workdays after receiving deposit or workable L/C |
| Export Packing | Waterproof paper, and steel strip packed.
Standard Export Seaworthy Package.Suit for all kinds of transport,or as required |
| Capacity | 250,000 tons/year |
Chemical Composition:
| C | Si | Mn | P | S | Cr | Ni | N |
| ≤ % | ≤ % | ≤ % | ≤ % | ≥% | % | % | ≤ % |
| 0.15 | 1.0 | 2.0 | 2.0 | 0.15 | 17.0-19.0 | 8.0-10.0 | / |
Mechanical Properties of 303:
| Tensile strength σb (MPa) | ≥520 |
| Yield strength σ0.2 (MPa) | ≥205 |
| Elongation δ5 (%) | ≥40 |
| Reduction of area ψ (%) | ≥50 |
| Hardness (HB) | ≤187 |
| Hardness (HRB) | ≤90 |
| Hardness (HV) | ≤200 |
Characteristics of 303 stainless steel
The improved machinability of this 303 stainless steel alloy (UNS S30300) makes it ideal for screw machine applications, aircraft fittings, and fasteners. The additional sulfur that allows this material to be readily machined also lowers its corrosion resistance compared to a grade like 304 stainless steel. Overall toughness is lower but still good, despite the inclusion of sulfur, and is comparable to other austenitic grades of stainless steel.
Standard Inventory Specifications:
- UNS S30300
- AMS 5640 Chem Only
- ASTM A 895
FAQ:
Q1. What are your company's main products ?
A1: Our main products are stainless steel plate/sheet, coil, round/square pipe, bar, channel, etc.
Q2. How do you control quality ?
A2: Mill Test Certification is supplied with shipment, Third Party Inspection is available. and we also get ISO,SGS,Alibaba Verified.
Q3. What are the advantages of your company ?
A35: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.
Q4: What is the terms of packing?
A3: generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers requirement.
Q5:What is your delivery time?
A4: For stocks, we could transport the goods to loading port within 7 days after we received your deposit
For production period, it usually takes about 15 days-30 days after receiving the deposit.
Q6. Can you provide sample ?
A7: We can provide the samll samples in stock for free, as long as you contact us.
Customized samples will take about 5-7days.
Q7. How many coutries you already exported ?
A6: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan,India, etc.
Product Tags:
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303 UNS S30300 ASTM A895 Stainless Steel Slit Coil Images
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