Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

HV=220 of steel 37 sheet , does full annealing work and make the hardness reach to 140 ?

Status
Not open for further replies.

AhmedDeiaa

Mechanical
Joined
Nov 1, 2014
Messages
29
Location
EG
HV=220 of steel 37 sheet , does full annealing work and make the hardness reach to 140 ?
 
Hello,

the only steel 37 i know of is the former denomination of todays S235 steel series as per Eurpean standards. But, tensile str. as per spec. would be max. 470 MPa which could be translated to around 140 HV. HV = 220 seems far off?! However, this might be a property that was set when the sheet was rolled (thermomechanical rolling process), but then you could have a more serious issue with the material as the strength properties of the material might be compromised (prone to brittle failure, nonsufficient capacity to take on deformation) and when annealing, the mech. properties might change to anything.
So, perhaps you could give more input on your base steel: denomination, stand. mech. properties, previous heat treatment etc., or finally get to the supplier and request for support?
Regards


Roland Heilmann
Lpz FRG
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top