20MnCr5 Round Bars

Starc Metals, located in Canberra, Australia, has built a solid reputation as a reliable manufacturer and supplier of top-notch steel products. With a strong focus on quality and dependability, they offer an impressive selection of steel bars, including the highly regarded 20MnCr5 round bars. These bars are meticulously crafted to meet strict industry standards, ensuring they perform exceptionally well across a variety of applications. By blending cutting-edge technology with skilled craftsmanship, Starc Metals is able to satisfy the needs of industries that demand tough and durable steel components, making them a go-to choice throughout Australia.

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20Mncr5 Round Bars

AISI CS 20Mncr5 Hex Bar

Carbon Steel 20Mncr5 Square Bar

What is 20MnCr5 Round Bar?

The 20MnCr5 round bars are made from alloy steel, primarily consisting of carbon (0.17-0.22%), manganese (1.00-1.30%), and chromium (1.00-1.30%). This unique blend boosts their hardenability and wear resistance. In terms of mechanical properties, these bars boast impressive tensile strength, typically ranging from 600 to 800 MPa, and yield strength around 400 to 600 MPa. They also exhibit good toughness and fatigue resistance, which makes them perfect for carburizing. Plus, with heat treatment, their hardness can be enhanced to between 58 and 62 HRC, a crucial factor for demanding mechanical applications.

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Chemical Compositions of 20MnCr5 Round Bar

Element	Content
Carbon, C	0.310 – 0.380 %
Iron, Fe	98.63 – 99.09 %
Manganese, Mn	0.60 – 0.90 %
Phosphorous, P	0.040 %
Sulfur, S	0.050 %

20MnCr5 Steel Round Bars Mechanical Properties

Properties	Metric	Imperial
Tensile strength, ultimate	585 MPa	84800 psi
Tensile strength, yield	370 MPa	53700 psi
Modulus of elasticity	190-210 GPa	29700-30458 ksi
Bulk modulus (typical for steel)	140 GPa	20300 ksi
Shear modulus (typical for steel)	80 GPa	11600 ksi
Poissons ratio	0.27-0.30	0.27-0.30
Elongation at break (in 50 mm)	30%	30%
Reduction of area	53%	53%
Hardness, Brinell	183	183
Hardness, Knoop (converted from Brinell hardness)	204	204
Hardness, Rockwell B (converted from Brinell hardness)	89	89
Hardness, Vickers (converted from Brinell hardness)	192	192
Machinability (based on AISI 1212 steel. as 100 machinability)	65	65

20MnCr5 Round Bar Equivalent Grades

EN Name	EN Number	DIN	JIS	UNI	BS
C35	1.0501	C35, CM35	S35C	C35	970 070M36

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Alloy 20 Round Bar Types

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Frequently Asked Questions (FAQ)

Can 20MnCr5 Round Bars Be Used For Underground Applications?

Yes, 20MnCr5 Round Bars can be used for underground applications due to their high strength and durability.

Do 20MnCr5 Round Bars Require Corrosion Protection Coatings?

Yes, 20MnCr5 Round Bars may require corrosion protection coatings for enhanced durability in harsh environments.

How Do I Choose The Right 20MnCr5 Round Bars?

Choose 20MnCr5 Round Bars based on required strength, wear resistance, and application-specific environmental conditions.

20MnCr5 Round Bar Uses

Thanks to their strength and wear resistance, 20MnCr5 round bars are widely utilized in the automotive, machinery, and engineering sectors. They’re often found in the production of gears, shafts, sprockets, and other components that require both surface hardness and core toughness. These bars are particularly well-suited for carburizing processes, which boosts their durability in high-stress situations. Additionally, 20MnCr5 is a popular choice for applications that involve dynamic loading, such as agricultural machinery and heavy equipment. Its versatility and reliability make it a vital material for parts that face continuous mechanical stress and wear.

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