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Steel 20MnCr5E
2

Steel 20MnCr5E

Steel 20MnCr5E

(OP)
I've come across a reference to the above steel.
Can anyone tell me what is the difference between 20MnCr5E and the 'ordinary' 20MnCr5 I am familiar with??

TIA

Peter
 

RE: Steel 20MnCr5E

I'm not 100% sure about this, but I  think that  they differ slightly in impurities or alloying elements i.e tighter chemical limits or inclusion rating.

Mark

RE: Steel 20MnCr5E

The S indicates a machine grade, high sulphur.  There are no equivalents to the DIN specification

  C;; Mn; Si; Cr; Mo; S; P;                            
20MnCr5    0.17-0.22; 1.10-1.40; 0.15-0.40; 1.00-1.30; 0.03; 0.03   
20MnCrS5  0.17-0.22; 1.10-1.40; 0.15-0.40; 1.00-1.30; 0.20-0.03; 0.03
                                                                       

  

RE: Steel 20MnCr5E

Peter,

The E is indicating that the material/part has been case hardened.  E and V are informally placed at the end of a steel designation to indicate the following:

E = Einsatzgehärtet = Case Hardened
V = Vergütet = Quenched and Tempered

I use the term informally because I have never seen this explicitly stated in a DIN standard, although it is somewhat commonly used in German-speaking countries.

RE: Steel 20MnCr5E

PeterCharles,

Sorry about that and I thank TVP for setting me straight.

RE: Steel 20MnCr5E

(OP)
Thank TVP

Peter

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