All Products

Raian Ionescu

Material quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future

Contact Person : Gao

Phone Number : 18068357371

Whatsapp : +8618068357371

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

Minimum Order Quantity	1 Ton
Price	US $650-1,380 / Ton

Product Details

Diameter	OD 6-630mm	Material	Alloy Steel
Surface Treatment	Polished	Carbon Content	0.20%
Silicon Content	Max. 0.40%	Manganese Content	0.80%
Chromium Content	0.53%	Molybdenum Content	0.20%
Nickel Content	0.55%	Density	7.86 G/cm3
Modulus Elasticity	210 X 103 N/mm2	Tensile Strength	≥980 MPa
Yield Strength	≥785 MPa	Elongation	≥9%
Reduction Area	≥40%
Highlight	Polished Surface Steel Round Bar , High Hardenability Alloy Steel Round Bar , Good Weldability SAE8620 Round Bar

Leave a Message

Product Description

SAE8620 Alloy Steel Round Bar

SAE8620H Alloy Round Bar is a low carbon nickel chromium molybdenum alloy steel with excellent carburizing properties, formability, and weldability. This widely used carburizing alloy offers high strength case and core toughness due to its nickel content, with chromium and molybdenum providing superior surface hardness and wear resistance.

Key Features

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

International Standards Equivalents

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

Material Description

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

Typical Applications

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

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

Available Stock Sizes

Round Bar Diameter: 12-380mm
Available in various conditions: pre-hardened, hot rolled, annealed, quenched and tempered
Surface conditions: black, pre-machined, grinding, polish

Quality Assurance & Services

Quality Commitment

ISO 9001 certified quality management system with continuous improvement processes and regular audits.

Speedy Delivery

Timely delivery of both raw materials and finished products with machining or heat treatment services.

Value-Added Services

Metal cutting, sizing, machining (blanking, milling, grinding), heat treatment, and sawing services available.

Product Images