General Technical Characteristics
Steel round bar 1.8519 (31CrMoV9 / 30Х3МФ) is a high-quality alloyed rolled metal designed for manufacturing critical components in mechanical engineering and other industrial sectors. This round bar belongs to the category of structural steels with a unique chemical composition and excellent mechanical properties.
Rolled Metal Characteristics
- Type: Round bar
- Steel grade: 1.8519 / 31CrMoV9 / 30Х3МФ
- Available diameters: from 10 mm to 250 mm
- Tolerance: In accordance with international standards
Chemical Composition
The uniqueness of 1.8519 steel is defined by its specific chemical composition:
- Carbon (C): 0.28-0.35%
- Silicon (Si): 0.17-0.37%
- Manganese (Mn): 0.40-0.70%
- Chromium (Cr): 1.40-1.80%
- Molybdenum (Mo): 0.15-0.30%
- Vanadium (V): 0.10-0.25%
- Nickel (Ni): up to 0.40%
This combination of alloying elements ensures high strength, wear resistance, and heat resistance of the metal.
Mechanical Properties
Steel round bar 31CrMoV9 has exceptional mechanical characteristics:
- Yield strength: at least 540 MPa
- Tensile strength: 670-850 MPa
- Relative elongation: 14-18%
- Impact strength: more than 50 J/cm²
- Hardness: 200-240 HB
Application of Steel Round Bar 1.8519
Metal rolled in grade 30Х3МФ is widely used in various industries:
- Mechanical engineering
- Power equipment production
- Manufacturing of steam and gas turbines
- Production of pipeline valves
- Creation of parts for chemical industry
- Manufacturing of high-temperature mechanisms
Features of Steel 1.8519
- High heat resistance: Steel maintains mechanical properties at temperatures up to 600°C.
- Corrosion resistance: Alloying additives provide resistance to aggressive environments.
- Weldability: Round bar 31CrMoV9 is easily weldable with preheating and accompanying heating.
- Heat treatment: Hardening, normalization, and tempering are possible for additional strengthening.
Purchase Advantages
- Guaranteed metal rolling quality
- Compliance with international standards
- Precise geometric dimensions
- Certified products
- Prompt delivery
- Professional specialist consultations
Purchase Conditions
Steel round bar 1.8519 / 31CrMoV9 / 30Х3МФ can be purchased wholesale and retail. Contact our managers for detailed information and order placement.
Reliability, proven by time – steel round bar 30Х3МФ for your production!
Forms made of steel 1.8519 / 31CrMoV9 / 30Х3МФ
Steel round bar | |
| Steel grade | Diameters (mm) |
| 1.8519 / 31CrMoV9 / 30Х3МФ | 30 – 420 |




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