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AISI 8620 Steel Bar with High Hardenability, Good Weldability, and Cold Strain Plasticity for Industrial Applications

Minimum Order Quantity	1 Ton
Price	US $850-1,350 / Ton

Product Details

Model Number	1.6523 / DIN 21NiCrMo2	Surface Treatment	Polished
Alloy Type	Alloy	Diameter Range	OD 6-630mm
Production Capacity	500tons	Carbon Content	0.17-0.23
Silicon Content	0.17-0.37	Manganese Content	0.6-0.95
Phosphorus Content	≤0.035	Sulfur Content	≤0.035
Chromium Content	0.4-0.7	Molybdenum Content	0.20-0.30
Tensile Strength	≥980(100) MPa	Yield Strength	≥785(80) MPa
Elongation	≥9%
Highlight	High Hardenability AISI 8620 Steel Bar , Good Weldability DIN 1.6523 Steel Bar , Cold Strain Plasticity SAE 8620H Alloy Steel Bar

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Product Description

AISI 8620 Steel Bar Stock Overview

SAE8620H Alloy Round Bar (UNS G86200) is a high-quality alloy construction steel offering excellent hardenability, machinability, and weldability. This low carbon nickel chromium molybdenum alloy provides superior carburized properties and formability.

Key Features

Excellent machinability performance
Superior cold strain plasticity
Outstanding weldability
High hardenability without fragility after tempering

International Standards Equivalents

Chinese (GB)	American (AISI)	German (DIN)	Japanese (JIS)
20CrNiMo	SAE8620	1.6523	/

Chemical Composition

Element	Content (%)
Carbon (C)	0.17-0.23
Silicon (Si)	0.17-0.37
Manganese (Mn)	0.6-0.95
Phosphorus (P)	≤0.035
Sulfur (S)	≤0.035
Chromium (Cr)	0.4-0.7
Molybdenum (Mo)	0.20-0.30
Copper (Cu)	≤0.30

Mechanical Properties

Property	Value
Quenching Temperature	850°C (oil cooled)
Tempering	200°C (air cooled)
Tensile Strength (σb)	≥980 MPa (100)
Yield Strength (σs)	≥785 MPa (80)
Elongation (δ5)	≥9%
Reduction of Area (ψ)	≥40%
Impact Energy (Akv)	≥47 J

Typical Applications

Widely used in transmission systems, tractor motors, and small to medium automotive components. Serves as an alternative to 12CrNi3 for high-class carburization and cyanide carburizing parts including oil drilling equipment, mining claws, and cones. Commonly specified for carburized gears, pinions, shafts, bearings, piston rings, ring gears, and crankshafts.

Available Stock Sizes

Round Bar Diameter: 12-380mm

Material Conditions & Forms

Available in round bars, flat bars, plates, and blocks. Various conditions include pre-hardened, hot rolled, annealed, quenched and tempered. Surface conditions range from black, pre-machined, grinding, to polished finishes.

Quality Assurance & Service Benefits

Quality Sourcing

Materials sourced exclusively from government-owned steel mills ensuring consistent high-quality products.

Timely Delivery

Priority treatment for all orders with shortest possible lead times for both raw and finished materials.

ISO 9001 Certified

Continuous improvement of integrated quality management system with regular audits and recertification.

Value-Added Services