Sales hotline: +1 800 878 3675
Contact us on usa@langleyalloys.com to request a quote
Sales hotline: +1 800 878 3675
Ferralium® 255 – FG46是一种超级双相不锈钢,在应变硬化(条件S)后供应。 它针对紧固件应用进行了优化,符合最常用于高压栓接应用的B7级合金碳钢的机械属性。
作为我们独特的Ferralium® 255 – SD50的一种变体,这种含25%铬并添加了大量铜的合金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,它还具有出色的耐点蚀和耐裂隙腐蚀性,临界点蚀温度超过50°C。
尽管强度有所提高,但在环境温度和零下温度时仍保持了出色的延性和耐冲击强度。 同时,它们还能有效地耐受磨蚀、侵蚀和气蚀。 通过专门设计的最高标准测试证实,标志性的Ferralium® 255-FG46具有高完整性和正确的相平衡,且没有Sigma相和其他有负面影响的相。
Cr | Ni | Mo | Co | Nb (+Ta) | Ti | V | W | Cu | C | Mn | N | Si | P | S | Fe | Al | |
Min | 24.50 | 5.50 | 3.10 | 1.50 | 0.80 | 0.20 | |||||||||||
Max | 26.50 | 6.50 | 3.80 | 2.00 | 0.025 | 1.20 | 0.25 | 0.70 | 0.025 | 0.005 | Balance |
Bars up to and including 4.0” diameter or section | ||
0.2% Proof Stress | 720 N/mm2 | 104.4 ksi |
Tensile Strength | 860 N/mm2 | 124.7 ksi |
Elongation, 5.65√S0 and 4D | 16% | |
Reduction of Area | 50% | |
Hardness (Brinell) | 220-335 | |
Impact Strength (Room Temp) | 80J | 59 ft.lb |
Impact Strength (-46degC) | 45J av (35J min) | 33 ft.lb av (25.8 ft.lb min) |
Density (Kg/m3) | 7810 |
Magnetic Permeability (20°C) | 33 |
Young’s Modulus (kN/mm2) | 220 |
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 |
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.