High-performance alloy material for industrial engineering and critical application conditions.
Scope of supply of Aviation Group:
Non-standard forgings, round rods, steel plates, rings, seamless pipes
1. 05Cr17Ni4Cu4Nb material introduction
05Cr17Ni4Cu4Nb alloy is precipitation hardening martensitic stainless steel containing copper and niobium.
05Cr17Ni4Cu4Nb is martensite precipitation hardening stainless steel with high strength, high hardness, excellent welding performance and corrosion resistance. It is widely applied in valves, shafts, chemical fiber, aerospace and other industries for high-strength structural parts requiring certain corrosion resistance.
2. 05Cr17Ni4Cu4Nb Chemical Components
| alloy | % | C | Mn | Si | P | S | Cr | Ni | Cu | Fe | Nb |
| 05Cr17Ni4Cu4Nb | Minimum value | – | – | – | – | – | 15.5 | 3.0 | 3.0 | Bal | 0.15 |
| Maximum value | 0.07 | 1.00 | 1.00 | 0.040 | 0.030 | 17.5 | 5.0 | 5.0 | 0.45 |
3. 05Cr17Ni4Cu4Nb Physical Performance
| density | 7.78g/cm³ |
| Melting point | 1400-1440℃ |
Mechanical properties of 05Cr17Ni4Cu4Nb alloy at room temperature:
| Condition | Tensile strength Rm N/mm2 | Yield strength RP0.2 N/mm2 | Elongation A5 % | Brinell hardness HB |
| 480℃ aging | ≥1310 | ≥1180 | ≥10 | ≥40 |
| 550℃ aging | ≥1060 | ≥1000 | ≥12 | ≥35 |
| 580℃ aging | ≥1000 | ≥865 | ≥13 | ≥31 |
| 620℃ aging | ≥930 | ≥325 | ≥16 | ≥28 |
After heat treatment, the mechanical properties of the product are more perfect, reaching a compressive strength of up to 1100-1300 mpa (160-190 ksi).
This grade cannot be used at temperatures above 300°C (572°F) or extremely low temperatures. It has good corrosion resistance to atmosphere, dilute acids and salts, and its corrosion resistance is equivalent to 304 and 430 stainless steel.
4. 05Cr17Ni4Cu4Nb corrosion resistance
5. 05Cr17Ni4Cu4Nb application field
