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Mat.No. 1.1178/DIN Ck30/AISI 1030

This is a higher carbon (0.30%) manganese steel in the plain carbon steel alloy family. It provides greater strength than the lower carbon grades while still retaining reasonable ductility.
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  • Mat.No. 1.1178/DIN Ck30/AISI 1030

  • Osaka

This is a higher carbon (0.30%) manganese steel in the plain carbon steel alloy family. It provides greater strength than the lower carbon grades while still retaining reasonable ductility.


Designation by Standards


Mat. No.DINENAISI
1.1178Ck30-1030



Chemical Composition (in weight %)


CSiMnCrMoNiVWOthers
0.31max.0.400.65max. 0.40max. 0.10max. 0.40--(Cr+Mo+Ni) = max. 0.63



Applications 

CK30 steel is generally used in the quenched and tempered condition for strength. Applications include machinery parts where strength and hardness are requisites. 


Physical properties (average values) at ambient temperature 

Modulus of elasticity [103 x N/mm2]: 200  

Density [g/cm3]: 7.85 

Thermal conductivity [W/m.K]: 51.2  

Specific heat capacity[J/g.K]: 0.486

 

Soft Annealing 

A full anneal is accomplished at 870 to 980oC followed by slow cooling in the furnace. A stress relief anneal may be done at 540oC. 


Hardening

Heat treat at 810 to 870oC and water quench, followed by a tempering treatment. 


Tempering 

Temper, after heat treat and quench, at 320 to 540oC depending upon strength level desired. 


Forging 

Hot forming temperature: 1050-850oC.

 

Machinabilty 

Machinabilty of CK30 steel is rated at 70% that of the AISI 1112 steel considered to be 100% machinable as a reference. 


Corrosion Resistance  

This is a plain carbon steel and will rust unless protected. 


Welding

CK30 steel may be welded by all methods. In heavy sections it is advisable to pre-heat at 150 to 260oC and post-heat at 540 to 650oC for welding. 


Cold working

Cold working of CK30 steel in the annealed condition may be don by conventional methods. A full or stress relief anneal may be needed after cold working. 


Forms manufactured

Please see the Dimensional Sales Program. 


Disclaimer 

The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes. There is no representation that the recipient of this literature will receive updated editions as it becomes available. Unless otherwise specified, registered trademarks are property of Metal Ravne company. Copyright 2015 by Metal Ravne. All rights reserved. Contact our Sales Office for more information.


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