Prime Quality 440A 440b 440c Stainless Steel Bar with Low Price
China Prime Quality 440A 440b 440c Stainless Steel Bar with Low Price, Find details about China 440c Stainless Steel Bar, Stainless Steel Bar from Prime Quality 440A 440b 440c Stainless Steel Bar with Low Price
| Product Name | Hard JIS G4303 440A 440B 440C Stainless Steel Bar with Low Price |
| Standard | ASTM A276, ASTM F899, A479, JIS G4303, EN 10088 |
| Diameter | 4 mm - 300 mm |
| Length | As requirement |
| Finish | Black, Peeled, Polishing, Bright |
| Technical | Hot rolled, cold drawn, forged |
| MOQ | 5 ton |
| Certification | ISO 9001:2008 , MTC , PMI , CO , SGS |
| Shape | stainless steel round, square, rectangular, bending |
What is 440 Stainlesss Steel?
Stainless steel grade 440A is a high carbon martensitic stainless steel that possesses good strength, moderate corrosion resistance, and excellent hardness and wear resistance.Stainless steels are available in three different groups based on their crystalline structure. These groups include martensitic, austenitic and ferritic. The combination of martensitic and ferritic steels forms a fourth group of stainless steels known as precipitation-hardened steels. Grade 440B stainless steel is a high carbon martensitic stainless steel containing good strength, moderate corrosion resistance and ability to obtain and maintain wear resistance and excellent resistance.
440C is a 400 series stainless steel, and is the highest carbon content from 400 stainless steel series. It is usually heat treated to reach hardness of 58-60 HRC. It is a bearing steel, and used in rolling contact stainless bearings, e.g. ball and roller bearings. It is also used to make knife blades. 440C can be oil quenched to achieve maximum hardness.
| Stainless steel grade and chemical composition(%) |
| Grade | C | Si | Mn | P ≤ | S ≤ | Cr | Ni | Mo | N |
| 201 | ≤0.15 | ≤1.00 | 5.5-7.5 | 0.06 | 0.03 | 16-18 | 3.5-5.5 | - | ≤0.25 |
| 202 | ≤0.15 | ≤1.00 | 7.5-10.0 | 0.06 | 0.03 | 17-19 | 4-6 | - | ≤0.25 |
| 301 | ≤0.15 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 16-18 | 6-8 | - | ≤0.10 |
| 304 | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 18-20 | 8-10.5 | - | - |
| 304L | ≤0.03 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 18-20 | 8-12 | - | - |
| 309 | ≤0.2 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 22-24 | 12-15 | - | - |
| 309S | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 22-24 | 12-15 | - | - |
| 310 | ≤0.25 | ≤1.50 | ≤2.00 | 0.045 | 0.03 | 24-26 | 19-22 | - | - |
| 310S | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 24-26 | 19-22 | - | - |
| 316 | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 16-18 | 10-14 | 2-3 | - |
| 316L | ≤0.03 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 16-18 | 10-14 | 2-3 | - |
| 316H | 0.04-0.1 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 16-18 | 10-14 | 2-3 | - |
| 316Ti | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 16-18 | 10-14 | 2-3 | ≤0.10 |
| 317 | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 18-20 | 11-15 | 3-4 | - |
| 317L | ≤0.03 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 18-20 | 11-15 | 3-4 | - |
| 321 | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 17-19 | 9-12 | - | ≤0.10 |
| 321H | 0.04-0.1 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 17-19 | 9-12 | - | ≤0.10 |
| 409 | ≤0.08 | ≤1.00 | ≤1.00 | 0.045 | 0.03 | 10.5-11.7 | ≤0.50 | - | - |
| 410 | ≤0.15 | ≤1.00 | ≤1.00 | 0.04 | 0.03 | 11.5-13.5 | ( ≤0.75) | ||
| 420 | ≥0.15 | ≤1.00 | ≤1.00 | 0.04 | 0.03 | 12-14 | - | - | - |
| 430 | ≤0.12 | ≤1.00 | ≤1.00 | 0.04 | 0.03 | 16-18 | - | - | - |
| 2507(Cu ≤0.5) | ≤0.03 | ≤0.8 | ≤1.2 | 0.035 | 0.02 | 24-26 | 6-8 | 3-5 | 0.24-0.32 |
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