05Cr17Ni4Cu4Nb
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Description
Scope of supply of Aviation Group:
Non-standard forgings, round rods, steel plates, rings, seamless pipes
- 05Cr17Ni4Cu4Nb material introduction
05Cr17Ni4Cu4Nb alloy is a precipitated, hardened, martensite stainless steel composed of copper, niobium/cinnabar.
05Cr17Ni4Cu4Nb is a martensite precipitation hardened stainless steel with high strength, high hardness, good welding performance and corrosion resistance. It has been widely promoted and used in valves, shafts, chemical fibers, aerospace and other industries, and has high-strength components with certain corrosion resistance requirements.
- 05Cr17Ni4Cu4Nb Chemical Components
| alloy | % | C | Mn | And | P | S | Cr | In | Cu | Fe | Nb |
| 05Cr17Ni4Cu4Nb | Minimum value | – | – | – | – | – | 15.5 | 3.0 | 3.0 | margin | 0.15 |
| Maximum value | 0.07 | 1.00 | 1.00 | 0.040 | 0.030 | 17.5 | 5.0 | 5.0 | 0.45 |
- 05Cr17Ni4Cu4Nb Physical Performance
| density | 7.78g/cm3 |
| Melting point | 1400-1440℃ |
Mechanical properties of 05Cr17Ni4Cu4Nb alloy at room temperature:
| alloy | Tensile strength Rm N/mm2 |
Yield strength RP0.2N/mm2 |
Elongation A5 % |
Brinell hardness HB |
| 480℃ aging | ≥1310 | ≥1180 | ≥10 | ≥40 |
| 550℃ aging | ≥1060 | ≥1000 | ≥12 | ≥35 |
| 580℃ aging | ≥1000 | ≥865 | ≥13 | ≥31 |
| Aging effect of 620℃ | ≥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 very low. It has good corrosion resistance to both the atmosphere and diluted acids or salts, and its corrosion resistance is the same as that of 304 and 430.
- 05Cr17Ni4Cu4Nb corrosion resistance
- The corrosion resistance of 05CR17NI4CU4NB alloy is better than any other standard hardenable stainless steel plate. In most cases, its corrosion resistance is no less than 304.
- If there is a risk of stress corrosion cracking, the higher aging temperature must be above 550°C (1022°F), preferably 590°C (1094°F).
- The tempering temperature in the chloride medium is 550°C-1022°F.
- The tempering temperature in H2S medium is 590°C-1094°F.
- It is susceptible to corrosion or crack corrosion in static seawater.
- Its corrosion resistance is the same as the 304L grade in petrochemical, food processing and paper industry.
- 05Cr17Ni4Cu4Nb application field
- Maritime platform, helicopter deck, other platforms
- Food Industry
- Pulp and paper industry
- Aerospace (turbine blades)
- Mechanical components
- Nuclear Waste Bucket
