I'm looking for fatigue material data

[Klaus800]

I'm looking for the two steel grades A283C and A572Gr50C (in Germany S235 and S355)the following parameters for the lifetime calculations (FEM calculations of Fatigue/Durability with Siemens NX)

Fatigue Strength Coefficient
Fatigue Strength Exponent
Fatigue Ductility Coefficient
Fatigue Ductility Exponent
Cyclic Strength Coefficient
Cyclic Strain Hardening Exponent

Many thanks for your help and many greetings
Klaus

 

[realtime2]

For the A572 try:

http://fde.uwaterloo.ca/Fde/Materials/Steel/Other/other.html

For the A283C its got higher Mn but
it appears that, according to

https://www.scribd.com/doc/103000868/Comparison-A36-A283-Gr-C

it is equivalent to an A36, which would lead one to web page:

http://fde.uwaterloo.ca/Fde/Materials/Steel/Lowcarbon/lowcarbon.html

I'm not sure about the German standards, but you could try the
T.H.Darmstadt fatigue database. Authors Heuler/Seeger.