PREMIUM 1.6587

Delivery hardness max. 229 HB
Tensile strength (approx. on delivery) 770 N/mm2
Working hardness max. 60 HRC
Tensile strength (at max. working hardness) 1300 N/mm2
Working temperature20 up to 200°C
Wear resistance
Corrosion resistance

Technical properties:

AISI/SAE 4820: CrNiMo alloyed case-hardening steel for highly stressed components with high core strength and toughness. This steel is used for gear parts such as ring gears or drive pinions and gear wheels. The 4820 is usually difficult to weld. Surface hardenss according to case hardness: approx. 58-60 HRC.


AISI/SAE 4820: Shafts, gear parts, gears, bevel gears, driving pinion.

C 015 up to 021 Ni 14 up to 17
Si - up to 04 V - up to -
Mn 05 up to 09 W - up to -
P - up to 0025 Cu - up to -
S - up to 0035 N - up to -
Cr 15 up to 18 Ti - up to -
Mo 025 up to 035 Co - up to -

Data given should to be taken as a guideline value.

<h3>Precision round steel black</h3> 500 mm

Precision round steel black

500 mm
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<h3>Precision round steel black</h3>  mm

Precision round steel black

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ABRAMS Engineering Services GmbH & Co. KG
Hannoversche Strasse 38
49084 Osnabrück / Germany

T: +49 (0) 5 41/3 57 39 - 0

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District Court Osnabrück / Germany, HRA 6865
VAT-No.: DE 221940667

General Partner

ABRAMS Engineering Verwaltungs GmbH
District Court Osnabrück / Germany, HRB 20019

Managing Director

Dipl.-Wi.-Ing. Dr. Jürgen Abrams


The contents of this application have been carefully compiled based on the best technology currently available.

Please note that the ABRAMS STEEL GUIDE provides an overview of general properties and uses and is therefore intended to facilitate the selection of materials. Not least of all due to the numerous application possibilities and their influencing factors, an express written agreement is required in every case in order to guarantee certain properties and values. A liability of any kind will otherwise be excluded. See also

ABRAMS Engineering Services GmbH & Co. KG is the sole owner of all rights and contents of this application, unless otherwise indicated. Any further use of any content or results of use in other programs or in print or online media without written authorisation is prohibited. The contents of this application are subject to continuous development. In order to always be able to use the most up-to-date information, the user should inform oneself about any possible updates in the App Store. The contents of this application, whether it be part or the entirety, may be changed, supplemented or deleted without prior announcement. There is no obligation to publish the contents permanently.

©2013 / Patent No.: US 8,463,771 B2
Date of Patent: Jun. 11,2013

Design & Realisation:

ABRAMS Engineering Services GmbH & Co. KG,

Realisation of the ABRAMS STEEL GUIDE application for web browser

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