×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • 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!
  • Students Click Here

*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.

Students Click Here

Jobs

Sulphur Content in Laser Welding

Sulphur Content in Laser Welding

Sulphur Content in Laser Welding

(OP)
I've been told the sulphur content must be very low to weld 303 stainless steel (maybe .2 max).  Getting 303 with this low of a sulphur content is very difficult.  Does anybody know how low you have to go to weld with 303?  Could a process parameter compensate for higher sulphur?

Thanks

RE: Sulphur Content in Laser Welding

Why 303?  There is a lot of controled microstructure 304 made with about 0.020% S.  This is enough to help machinability but not destroy welding or corrosion resistance.

= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm

RE: Sulphur Content in Laser Welding

(OP)
303 is what we're currently using (wasn't my idea).  I'd like to pursue other options because we're having a rough time getting 303 with .2max Sulphur.  Do you think 304 is easily available with .2Su?  Have a contact at a supplier?  I appreciate your input.

RE: Sulphur Content in Laser Welding

cjholl0,
No 304 with 0.2% S, since 304 has the limit of 0.030% S, maximum.
303 contains 0.15% S, minimum, usually ~0.3%.

Carpenter Technology has improved machining versions of 304 & other SS, within the standard composition limits so no welding problems. Register at their website (free) & download info:

Carpenter Project 70+® Stainless Machining Bar Brochure(6 pages)
Guide to Machining Carpenter Specialty Alloys (170 pages)
"Project 70+ Type 304/304L stainless has been engineered to reduce tool wear as well as increase machine speeds and feeds that help improve productivity while reducing part costs. This patented alloy is an improvedmachining version of conventional Stainless Type 304/304L."

http://www.cartech.com/sao_products/wr_sao_product.html?leftn=sao_products&;lefto=empty&lefti=sao_ps0

RE: Sulphur Content in Laser Welding

The other material that I had in mind was Outokumpu Prodec.  This a 304 with about 0.020%S.  This stuff machines like 303, but welds and resists corrosion like regular 304.

= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

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!


Resources