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Polished Surface SAE8620 Alloy Steel Round Bar with High Hardenability and Good

China Polished Surface SAE8620 Alloy Steel Round Bar with High Hardenability and Good

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Polished Surface SAE8620 Alloy Steel Round Bar with High Hardenability and Good

MOQ： 1 Ton
Price： US $720-1,350 / Ton
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Diameter Range	6-630mm
Material	SAE8620 Alloy Steel
Standard Code	A50202
Density	7.86 g/cm3
Modulus of Elasticity	210 x 103 N/mm2
Tensile Strength	≥980 MPa
Yield Strength	≥785 MPa
Elongation	≥9%
Reduction of Area	≥40%
Impact Energy	≥47 J
Forging Temperature	1150-850oC
Quenching Temperature	850oC
Tempering Temperature	200oC
Case Hardening Temp	880-980oC
Carburizing Temp	880-980oC

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Product Details
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Product Specification


Diameter Range	6-630mm	Material	SAE8620 Alloy Steel
Standard Code	A50202	Density	7.86 g/cm3
Modulus of Elasticity	210 x 103 N/mm2	Tensile Strength	≥980 MPa
Yield Strength	≥785 MPa	Elongation	≥9%
Reduction of Area	≥40%	Impact Energy	≥47 J
Forging Temperature	1150-850oC	Quenching Temperature	850oC
Tempering Temperature	200oC	Case Hardening Temp	880-980oC
Carburizing Temp	880-980oC
High Light	Polished Surface SAE8620 Alloy Steel Round Bar ，High Hardenability 1.6523 Steel Round Bar ，Good Weldability 20NiCrMo2 Alloy Steel Bar

SAE8620 Alloy Steel Round Bar

SAE8620H alloy steel round bar is a low carbon nickel chromium molybdenum alloy with excellent carburizing properties, formability, and weldability. This widely used carburizing alloy offers high strength case and core toughness, supported by chromium and molybdenum for superior surface hardness and wear resistance.

Key Features

Excellent machinability performance
Superior cold strain plasticity
Good weldability characteristics
High hardenability properties

International Standards Equivalents

Brand Name	Ravne No.	Mat. No.	DIN	EN	AISI
20NCD2	769	1.6523	21NiCrMo2	20NiCrMo2	8620

Chemical Composition (Weight %)

C	Si	Mn	Cr	Mo	Ni	V	W	Others
0.20	max. 0.40	0.80	0.53	0.20	0.55	-	-	-

20NCD2 is a hardenable chromium, molybdenum, nickel low alloy steel designed for carburizing to develop case-hardened parts with excellent wear characteristics.

Physical Properties

Modulus of elasticity: 210 × 10³ N/mm²
Density: 7.86 g/cm³

Heat Treatment Specifications

Treatment	Temperature	Cooling
Case hardening	880-980°C	Oil (water), hot bath 160-250°C
Carburising	880-980°C	Oil (water), hot bath 160-250°C
Direct hardening	880-980°C	Oil, hot bath 160-250°C
Core refining	860-900°C	Oil, hot bath 160-250°C
Core refining	780-820°C	Oil, hot bath 160-250°C
Tempering	150-200°C	Air

Mechanical Properties

Quenching Temperature: 850°C (oil cooled)
Tempering: 200°C (air cooled)
Tensile strength: ≥980 MPa
Yield strength: ≥785 MPa
Elongation: ≥9%
Reduction of area: ≥40%
Impact energy: ≥47 J

Applications

Gears, shafts, bearings, piston rings, ring gears, crankshafts, and other applications requiring hard carburized case with tough core. Widely used in transmission systems, tractor motors, and automotive components.

Available Sizes

Round bar diameter: 12-380mm
Available in various conditions: pre-hardened, hot rolled, annealed, quenched and tempered

Quality Assurance & Services

Quality Commitment

Materials sourced exclusively from certified steel manufacturers with ISO 9001 quality management system certification for consistent product quality.

Value-Added Services

Metal cutting and sizing
Machining (blanking, milling, grinding)
Heat treatment services
Sawing for small or large quantities
Sawing-to-size capabilities

Delivery & Support

Speedy and timely delivery with excellent customer service. Orders of any size and length processed efficiently with competitive lead times.

Disclaimer: The information presented represents typical or average values and is not a guarantee of maximum or minimum values. Applications suggested are for illustration purposes only and are not intended as warranties of fitness for specific purposes.

Company Details

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Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...

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JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
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