Smart questions
Smart answers
Smart people
Join Eng-Tips Forums
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Member Login




Remember Me
Forgot Password?
Join Us!

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips now!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

Join Eng-Tips
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.
Jobs from Indeed

Link To This Forum!

Partner Button
Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.
Just copy and paste the
code below into your site.

calliste (Mechanical) (OP)
12 May 11 3:29
Hello,

In what conditions S335 J0 can be used instead of S335 J2?  
calliste (Mechanical) (OP)
12 May 11 4:10
Sorry, I'm new in material zone so  i mistyped the material grades then question should be
"in what conditions S355 J0 instead of S355 J2?"
Thanks
vthomidis (Mechanical)
12 May 11 8:57
The main difference between structural steel grade S355 J2 and JO
is that at the notch impact test (longitudinal ) :

JO : absorbs energy min. 27 J at temperature   0 C
J2 : absorbs energy min. 27 J at temperature -20 C

So it concerns impact behaviour at different temperatures.

If -20 C temperature is out of every probability in the particular use of the steel then choice of S355J0 is OK.

In both cases however the price ( cost of steel ) is  almost the same....  
calliste (Mechanical) (OP)
12 May 11 9:30
Does it mean JO can be upgrade and acceptable if i can do longitudinal -20 degree impact test ? Another question is about the chemical compositions.

for JO materials P, S values should be max 0,030 and N need to be 0,015
but for J2 P, S values are 0,025 and there isnt N ?

 
vthomidis (Mechanical)
16 May 11 8:21
As for P,S values are more like
J0- P,S : 0,040 percent N : 0,015 ( all maximum )
J2- P,S : 0,035    "    N : no

 ( for long products P and S may be 0,005 more ).

All those qunatities are actually very small, so you should estimate if they are a concern at all for your application
( most probably they are not - this quality being conventional  
  construction oriented. )

 

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close