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Alloy 2507 (UNs S32750) is a super duplex stainless steel containing 25% chromium, 4% molybdenum and 7% nickel. The steel has excellent resistance to chloride stress corrosion cracking, high thermal conductivity and low coefficient of thermal expansion. Commonly used in chemical process, petrochemical and seawater equipment.
| Stainless Steel Coil | |
| Product Name | Stainless Steel Coil, Stainless Coil, SS Coil |
| Standard | GB, AISI, ASTM, DIN, EN, JIS |
| Available Grades | 200 Series: 201，202 |
| 300 Series: 304, 304L, 304H, 309, 309S, 310, 310S, 316, 316L, 317, 317L, 321, 321H, 347, 347H | |
| 400 Series: 409, 410S, 416, 420, 430, 439, 440, 444, 446 | |
| Duplex and Others: 2205, 2507, S31803, S32205, S32750, S32760, 253MA, 254SMO, 904L etc | |
| Process | Hot Rolled, Cold Rolled |
| Sizes | Thickness: 0.1-16mm, Width: 600-2000mm (according to customer's request) |
| Surface Treatment | , 2B, NO.4, BA, HL, Mirror |
| Inspection | SGS, TUV, BV, ABS, LR etc. |
| Application | Oil&Gas, Petroleum, Vessels, Ship Building, Water Treatment And Environmental Protection etc. |
| Finish | Description | Thickness (mm) | Width (mm) |
| 2B | Smooth finish, reflective grey sheen.Most widely used surface finish. | 0.55 | 914 & 1219 |
| Bright Annealed (BA) | Cold rolled, annealed in a controlled atmosphere to retain a highly reflective finish. | 0.70 | 914 & 1219 |
| Dull Polish (DP) | Selected for ease of cleaning, brushed look, non-reflective, used extensively in the catering industry, also push plates and kickplates. | 0.90 | 750, 914 & 1219 |
| Hot Rolled (HR) | Scaled finish, ideal if surface finish is not a key concern. | 1.20 | 750, 914, 1050, 1219 & 1500 |
| No.1 | Finished by hot-rolling,annealing and pickling, characterized by white pickled surface | 1.50 | 914, 1219 & 1500 |
| HL | finished by continuous liner polishing | 1.60 | 914, 1219 & 1500 |
| No.4 | polishing with No.150 to No.180 mesh | 2.00 | 914, 1219 & 1500 |
| No.8 | a mirror-like reflective surface by polishing | 2.50 | 914, 1219 & 1500 |
