Contact us on usa@langleyalloys.com to request a quote
Sales hotline: +1 800 878 3675
Ferralium® 255 – 3SF是一种作为锻件供应的超级双相不锈钢。 作为一种含25%铬并添加了大量铜的合金，它在各类腐蚀性化学品中都具有出色的耐腐蚀性，包括硫酸、硝酸和磷酸。
在海水及其他含氯环境中，它还能有效耐点蚀和裂隙腐蚀，且临界点蚀温度超过50°C。它在环境温度和零下温度时都具有出色的延性和耐冲击强度，并能有效耐受磨蚀、侵蚀和气蚀。
| Cr | Ni | Mo | Co | Nb (+Ta) | Ti | V | W | Cu | C | Mn | N | Si | P | S | Fe | Al | |
| Min | 24.00 | 4.50 | 2.90 | 1.50 | 0.10 | ||||||||||||
| Max | 27.00 | 6.50 | 3.90 | 2.50 | 0.040 | 1.50 | 0.25 | 1.00 | 0.040 | 0.030 | Balance |
| 0.2% Proof Stress | 550 N/mm2 | 79.8 ksi |
| Tensile Strength | 750 N/mm2 | 108.8 ksi |
| Elongation, 5.65√S0 and 4D | 25% | |
| Reduction of Area | ||
| Hardness (Brinell) | 220 - 270 | |
| Impact Strength (Room Temp) | 80J | 59.0 ft.lb |
| Density (Kg/m3) | 7810 |
| Magnetic Permeability (20°C) | 33 |
| Young’s Modulus (kN/mm2) | 199 |
| Specific Electrical Resistance, 20°C (µΩ-m) | 0.8 |
| Mean coefficient of thermal expansion, 20-100°C (m/m/degC) | 11.1 x 10-6 |
| Specific Heat, 20°C (J/kg.K) | 475 |
| Thermal conductivity, 20°C (W/m.K) | 14.2 |
| Fracture Toughness, KQ (MPa/m2) | 98 |
Worldwide Delivery Available
We can offer air, sea and road freight shipping options, with choice of packaging, to deliver to customers globally.
Inventory Management
Let us manage your total material requirements with call-off and consignment arrangements.
Up to 40 sizes per alloy available
More sizes equal less machining and a more cost-effective supply chain.
