440c Stainless Steel Flat Bar
Short Description:
UNS S44000 Flat Bars, SS 440 Flat Bars, Stainless Steel 440 Flat Bars Supplier, Manufacturer and Exporter in China.
Stainless steels are high-alloy steels which have high corrosion resistance compared to other steels due to the presence of large amounts of chromium. Based on their crystalline structure, they are divided into three types such as ferritic, austenitic, and martensitic steels. Another group of stainless steels are precipitation-hardened steels. They are a combination of martensitic and austenitic steels. Grade 440C stainless steel is a high carbon martensitic stainless steel. It has high strength, moderate corrosion resistance, and good hardness and wear resistance. Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Its very high carbon content is responsible for these characteristics, which make 440C particularly suited to such applications as ball bearings and valve parts.
| 440 Stainless Steel Flat Bar Spections: |
| Specification: | A276/484 / DIN 1028 |
| Material: | 303 304 316 321 416 420 440 440C |
| Stainless Steel Round Bars: | Outside Diameter in the range of 4mm to 500mm |
| Width: | 1mm to 500mm |
| Thickness: | 1mm to 500mm |
| Technique: | Hot Rolled Annealed & Pickled (HRAP) & Cold drawn & Forged & Cut Sheet and Coil |
| Length: | 3 to 6 Meters / 12 to 20 feet |
| Marking: | Size, Grade, Manufacture name on Each Bars/Pieces |
| Packing: | Each steel bar has the singal, and several will be bundled by weaving bag or as per requirement. |
| Equivalent Grades Of 440c SS Flat Bar: |
| American | ASTM | 440A | 440B | 440C | 440F |
| UNS | S44002 | S44003 | S44004 | S44020 | |
| Japanese | JIS | SUS 440A | SUS 440B | SUS 440C | SUS 440F |
| German | DIN | 1.4109 | 1.4122 | 1.4125 | / |
| China | GB | 7Cr17 | 8Cr17 | 11Cr179Cr18Mo | Y11Cr17 |
| Chemical Composition Of 440c SS Flat Bar: |
| Grades | C | Si | Mn | P | S | Cr | Mo | Cu | Ni |
| 440A | 0.6-0.75 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.03 | 16.0-18.0 | ≤0.75 | (≤0.5) | (≤0.5) |
| 440B | 0.75-0.95 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.03 | 16.0-18.0 | ≤0.75 | (≤0.5) | (≤0.5) |
| 440C | 0.95-1.2 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.03 | 16.0-18.0 | ≤0.75 | (≤0.5) | (≤0.5) |
| 440F | 0.95-1.2 | ≤1.00 | ≤1.25 | ≤0.06 | ≥0.15 | 16.0-18.0 | / | (≤0.6) | (≤0.5) |
Note: the values in brackets are allowed and not mandatory.
| Hardness Of 440c Stainless Steel Flat Bar: |
| Grades | Hardness, Annealing（HB） | Heat treatment（HRC） |
| 440A | ≤255 | ≥54 |
| 440B | ≤255 | ≥56 |
| 440C | ≤269 | ≥58 |
| 440F | ≤269 | ≥58 |
| SAKY STEEL’S Quality Assurance (including both Destructive and Non-Destructive) : |
1. Visual Dimension Test
2. Mechanical examining like tensile, Elongation and reduction of area.
3. Ultrasonic test
4. Chemical examination analysis
5. Hardness test
6. Pitting protection test
7. Penetrant Test
8. Intergranular Corrosion Testing
9. Impact analysis
10. Metallography Experimental Test
| SAKY STEEL’S Packaging: |
1. Packing is quite important especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put special concern regarding packaging.
2. Saky Steel’s pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,
Applications:
Applications requiring moderate corrosion resistance and high mechanical properties are ideal for Alloy 440. Examples of applications that frequently used Alloy 440 include:
- Rolling element bearings
- Valve seats
- High quality knife blades
- Surgical instruments
- Chisels
