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20MnCr5 Round Bar

Name: 20MnCr5 Round Bar
Brand: VENTURA ALLOY AND STEELS PRIVATE LIMITED
Price: 66.0 INR
Availability: InStock

Price 66.0 INR/ Kilograms

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MOQ : 1000 Kilograms

20MnCr5 Round Bar Specification

Length
100 mm to 6000 mm or as required

Grade
20MnCr5

Material Grade
20MnCr5

Type
Round Bar

Application
Automobile, Engineering, Construction, Machinery Manufacturing

Processing
Annealed, Quenched & Tempered, Case Hardened

Specific Use
Gears, Shafts, Pinions, Transmission Components

Standard
EN 10084, DIN 17210, BS 970, IS 4432

Finish
Bright, Black, Peeled

Material
20MnCr5 Alloy Steel

Tolerance
H8, H9, H11 as per DIN EN ISO 286-2

Diameter
8 mm to 300 mm, Custom sizes available

Technique
Hot Rolled / Forged

Delivery Condition
As Rolled / Peeled / Turned

Corrosion Resistance
Moderate (With proper coating/treatment)

Manganese Content (%)
1.10 - 1.40

Chromium Content (%)
1.00 - 1.30

Shape
Round

Hardness
200 - 255 HB (Annealed)

Yield Strength
Over 500 MPa (after heat treatment)

Carbon Content (%)
0.17 - 0.22

Surface Condition
Mill Finish / Ground / Polished

About 20MnCr5 Round Bar

20MnCr5 / 16MnCr5 Case Hardening Alloy Steel

Overview:
20MnCr5 and 16MnCr5 are low-alloy case hardening steels known for their excellent wear resistance, high tensile strength, and good machinability. These steels are widely used for producing components that demand a hard, wear-resistant surface and a tough, impact-resistant core.

Key Properties:

Composition: Low carbon with manganese and chromium additions
Hardening Capability: Excellent surface hardening through carburizing
Core Toughness: Maintains good ductility and toughness in the core after heat treatment
Weldability: Moderate welding is possible with proper precautions and post-weld treatment
Machinability: Good easily shaped and finished before hardening

Common Applications:

Gears
Shafts
Camshafts
Pins and bolts
Transmission components

Heat Treatment Options:

Carburizing: For surface hardening
Quenching and Tempering: For strength and toughness
Annealing: To soften before machining
Normalizing: To refine grain structure and improve uniformity

Conclusion:
20MnCr5 / 16MnCr5 are ideal steels for applications requiring a combination of hard surface wear resistance and core toughness, making them popular in the automotive and mechanical engineering industries.

Precision Alloy for Demanding Applications

The 20MnCr5 round bar offers a combination of high tensile properties, machinability, and case-hardening capability, making it ideal for automotive and engineering sectors. The bar's moderate hardness and durable chromium alloy composition allow it to withstand demanding mechanical stresses-perfect for precision parts like shafts and gears. With a broad size range, multiple finishing options, and tight tolerances, these bars provide flexibility for customized requirements.

Advanced Processing and Finish Options

Each 20MnCr5 round bar can be supplied in a variety of delivery conditions such as as-rolled, peeled, or turned. Advanced processing options include annealed, quenched & tempered, and case-hardened treatments, ensuring the correct mechanical properties are achieved for specific use cases. Available finishes like bright, black, peeled, and ground cater to functional and aesthetic requirements, while surface treatments and coatings can enhance corrosion resistance.

FAQ's of 20MnCr5 Round Bar:

Q: How is the 20MnCr5 round bar processed for optimal hardness and strength?

A: The 20MnCr5 round bar is processed through different techniques such as hot rolling or forging. It can further be annealed, quenched, and tempered, or case hardened to achieve the required hardness (200 - 255 HB in annealed condition) and a yield strength exceeding 500 MPa after suitable heat treatment.

Q: What are the primary applications of 20MnCr5 round bars?

A: This grade is widely used for producing gears, shafts, pinions, and transmission components due to its excellent hardenability and wear resistance. It is also suitable for use in automotive, machinery manufacturing, engineering, and construction industries.

Q: When should I choose ground or polished 20MnCr5 round bars?

A: Ground or polished finishes are selected when superior dimensional accuracy and surface quality are needed, such as in manufacturing precision mechanical components or assemblies that require smooth, aesthetically appealing surfaces.

Q: Where are 20MnCr5 round bars typically used?

A: These bars are commonly utilized in critical machine elements found in automobiles, construction equipment, and industrial machinery, especially where enhanced strength and wear resistance are essential.

Q: What benefits does proper case hardening provide to 20MnCr5 bars?

A: Case hardening significantly improves surface hardness and wear resistance while maintaining a tough and ductile core, thus extending the lifespan of components exposed to repeated friction and mechanical stress.

Q: How does 20MnCr5 steel perform regarding corrosion resistance?

A: 20MnCr5 alloy offers moderate corrosion resistance, which can be boosted using appropriate coatings or treatments to suit applications exposed to harsher environments.

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