20NiCrMo14-5 / 1.6772 Alloy Steel

Steel Round Bar 1.6772 / 20NiCrMo14-5: Specifications, Applications, and Features

Steel round bar 1.6772 (20NiCrMo14-5) is a high-quality alloyed material used for manufacturing components that operate under high loads and wear conditions. Thanks to its strength, wear resistance, and ability to undergo heat treatment, this alloy is widely applied in mechanical engineering and other industrial sectors. Below are its key specifications, chemical composition, mechanical properties, applications, and features.

General Specifications

Steel round bar 1.6772 / 20NiCrMo14-5 belongs to the group of alloyed structural steels. Its main advantage is the combination of high strength, hardness, and ductility after heat treatment. Key parameters include:

• Steel grade: 1.6772 (EN), 20NiCrMo14-5 (European standard).
• Form of supply: Round bar with diameters ranging from 10 mm to 300 mm.
• Type of processing: Hot-rolled, calibrated, or polished.
• Heat treatment methods: Carburizing, quenching, and tempering.
• Corrosion resistance: High resistance to corrosion after heat treatment.

This material is ideal for components operating under load in aggressive environments or conditions of constant friction.

Chemical Composition

The balanced chemical composition of steel 1.6772 / 20NiCrMo14-5 ensures its unique properties:

• Carbon (C): 0.17–0.23%
• Chromium (Cr): 0.90–1.20%
• Nickel (Ni): 3.20–3.50%
• Molybdenum (Mo): 0.15–0.25%
• Manganese (Mn): 0.50–0.80%
• Silicon (Si): Up to 0.40%
• Phosphorus (P): ≤ 0.025%
• Sulfur (S): ≤ 0.035%

The addition of nickel and chromium increases the material’s strength and hardness, while molybdenum enhances wear resistance and corrosion resistance.

Mechanical Properties

After heat treatment, steel 1.6772 exhibits the following mechanical properties:

• Tensile strength (σv): 800–1100 MPa.
• Yield strength (σ0.2): 600–700 MPa.
• Hardness (HB): Up to 250 (as delivered), increases after quenching.
• Elongation at break: 10–15%.
• Impact toughness: High resistance to dynamic loads.

These characteristics make the material reliable for use in critical structures and mechanisms.

Applications

Steel round bar 1.6772 / 20NiCrMo14-5 is widely used in the following sectors:

1. Mechanical engineering.
   Used for manufacturing gears, shafts, gear wheels, and other components subjected to high loads.
2. Automotive industry.
   Suitable for producing axles, drive shafts, and other transmission components.
3. Shipbuilding.
   Applied for making engine parts operating in high humidity and saline water conditions.
4. Equipment manufacturing.
   Used for creating load-bearing elements of presses, molds, and other mechanisms.
5. Aerospace industry.
   Used for components where a combination of lightness and strength is required.

This material is ideal for long-term operation under friction and dynamic loads.

Features of Steel 1.6772

The round bar made of steel 1.6772 / 20NiCrMo14-5 has the following key features:

• Strength and wear resistance.
  The material retains its properties even during prolonged operation under constant friction.
• Load resistance.
  High mechanical properties make this steel optimal for use under high dynamic and static loads.
• Ductility.
  High ductility is maintained after heat treatment, facilitating material processing and adaptation.
• Heat treatment adaptability.
  The material is well-suited for carburizing, quenching, and tempering, allowing optimal characteristics for specific tasks.
• Corrosion resistance.
  High resistance to aggressive environments makes this steel suitable for challenging conditions.

Advantages of Buying from Us

We offer a wide range of steel round bars 1.6772 / 20NiCrMo14-5 in various diameters and processing options. Our advantages:

• High-quality products.
  All products comply with international quality standards.
• Competitive prices.
  Flexible pricing policy for wholesale and retail clients.
• Cutting and delivery services.
  We prepare products according to your specific needs.
• Expert consultations.
  Our specialists will help you choose the optimal solution for your project.

Contact us to get a quote and place your order. Steel round bar 1.6772 / 20NiCrMo14-5 is a reliable choice for your production needs!

Forms made of steel 1.6772 / 20NiCrMo14-5