Surface Engineering Forum

  • Alternative Forum Home PageSEF Portal
  • Old S E Message Board ArchivesOld Message Board Archives
  • Search
  • Member List
  • Calendar
  • Help

Current time: 04-26-2018, 04:19 PM Hello There, Guest! (Login — Register)


Surface Engineering Forum / Surface Engineering / Surface Engineering Threads v
« Previous 1 ... 4 5 6 7 8 ... 30 Next »
/ Query - SS Wire coating




Post Reply 
Threaded Mode | Linear Mode
Query - SS Wire coating
01-09-2015, 06:06 PM
Post: #1
RV_DMG Offline
Active Member
****
Posts: 26
Joined: Aug 2014
Reputation: 0
Query - SS Wire coating
Hello,

Arc spray is very famous process these days & most of rebuilding & corrosion protection application I have read in several journals they suggest for Stainless steel grades 420, 316, 316L, 321, 304. I have big question how to select among these grades for particular application? is there any thumb rule for this selection? a thought clarification will be very beneficial for me to understand this.

Please help!



Regards
Send this user an email Find all posts by this user
Quote this message in a reply
01-10-2015, 11:45 AM
Post: #2
Vadim Verlotski Offline
SuperMember
******
Posts: 113
Joined: Sep 2014
Reputation: 5
RE: Query - SS Wire coating
Hello RV_DMG,

Stainless steel coatings, applied by thermal spraying are not suitable for corrosion protection, as they are all porous (porous coating of stainless steel does not slow down, but accelerates corrosion of steel, as is the cathode). For corrosion protection with arc spray applied wires of zinc or aluminum.

Regards
Send this user an email Visit this user's website Find all posts by this user
Quote this message in a reply
01-11-2015, 03:37 PM
Post: #3
Parat Tech Offline
Active Member
****
Posts: 37
Joined: Mar 2014
Reputation: 0
RE: Query - SS Wire coating
Dear RV_DMG,

I understand your concern behind this question, many people find it difficult for selecting stainless steel grade while applying stainless steel coating. I try to make it little easy & explanatory here :-

All grades of stainless steel are good for anti-corrosion & anti wear properties while applying reclamation coating works, only differentiation of characteristics of each grade matters for this selection.

300 series of SS grades are categorized into austenitic stainless steel which is more good for protecting corrosion failures.

SS 304 is mostly used for several application with carbon % of around 0.08% & commonly it is called as 18/8 steel which means it contains 18% chromium & 8% nickel.

SS 316; which is commonly called as 18/10 i.e. 18% chromium & 10% nickel. Due to addition of molybdenum this grade is even better for anti-corrosion properties specially resistance to pitting & crevice corrosion in chloride environments. Most of marine & petrochemical coating applications use this grade.

SS 316L is nothing but SS 316 grade only, it contents even lesser amount of carbon i.e. <0.03% which is even stronger for corrosion resistance properties. L stand for low carbon percentage.

SS 321; with addition of Titanium & Niobium becomes good resistance of inter granular corrosion for high temperature application up to 900 degree centigrade. This is very rarely used grade for thermal spray application only few of the power plant applications choose this grade.

SS 420 is high carbon steel with chromium content of min. 12%. This grade of SS is hardest among all above; 50 HRC. If gives a very good surface finish if grinded/lapped after spray, this finished surface provide good corrosion resistance. Common application of this grade in industry is reclamation of shafts.

I think I was able to make my all points clear. If you need any further information on any of these wires you can contact me anytime, as I supply all types of metal spray wires with test certificates.


Regards

Harish Dhanadiya
Parat Technologies
India
info@parattech.com
http://www.parattech.com







(01-09-2015 06:06 PM)RV_DMG Wrote:  Hello,

Arc spray is very famous process these days & most of rebuilding & corrosion protection application I have read in several journals they suggest for Stainless steel grades 420, 316, 316L, 321, 304. I have big question how to select among these grades for particular application? is there any thumb rule for this selection? a thought clarification will be very beneficial for me to understand this.

Please help!



Regards
Send this user an email Visit this user's website Find all posts by this user
Quote this message in a reply
02-13-2015, 06:14 AM
Post: #4
RV_DMG Offline
Active Member
****
Posts: 26
Joined: Aug 2014
Reputation: 0
RE: Query - SS Wire coating
Dear Harish, First of all many thanks for your such a wonderful detailed explanation! Does your co. supply all kinds of stainless steel grade metal spray wires? Please write me in personal message/mail.




Regards



(01-11-2015 03:37 PM)Hari Wrote:  Dear RV_DMG,

I understand your concern behind this question, many people find it difficult for selecting stainless steel grade while applying stainless steel coating. I try to make it little easy & explanatory here :-

All grades of stainless steel are good for anti-corrosion & anti wear properties while applying reclamation coating works, only differentiation of characteristics of each grade matters for this selection.

300 series of SS grades are categorized into austenitic stainless steel which is more good for protecting corrosion failures.

SS 304 is mostly used for several application with carbon % of around 0.08% & commonly it is called as 18/8 steel which means it contains 18% chromium & 8% nickel.

SS 316; which is commonly called as 18/10 i.e. 18% chromium & 10% nickel. Due to addition of molybdenum this grade is even better for anti-corrosion properties specially resistance to pitting & crevice corrosion in chloride environments. Most of marine & petrochemical coating applications use this grade.

SS 316L is nothing but SS 316 grade only, it contents even lesser amount of carbon i.e. <0.03% which is even stronger for corrosion resistance properties. L stand for low carbon percentage.

SS 321; with addition of Titanium & Niobium becomes good resistance of inter granular corrosion for high temperature application up to 900 degree centigrade. This is very rarely used grade for thermal spray application only few of the power plant applications choose this grade.

SS 420 is high carbon steel with chromium content of min. 12%. This grade of SS is hardest among all above; 50 HRC. If gives a very good surface finish if grinded/lapped after spray, this finished surface provide good corrosion resistance. Common application of this grade in industry is reclamation of shafts.

I think I was able to make my all points clear. If you need any further information on any of these wires you can contact me anytime, as I supply all types of metal spray wires with test certificates.


Regards

Harish Dhanadiya
Parat Technologies
India
info@parattech.com
http://www.parattech.com







(01-09-2015 06:06 PM)RV_DMG Wrote:  Hello,

Arc spray is very famous process these days & most of rebuilding & corrosion protection application I have read in several journals they suggest for Stainless steel grades 420, 316, 316L, 321, 304. I have big question how to select among these grades for particular application? is there any thumb rule for this selection? a thought clarification will be very beneficial for me to understand this.

Please help!



Regards
Send this user an email Find all posts by this user
Quote this message in a reply
« Next Oldest | Next Newest »
Post Reply 




Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  MO wire spray parameter for 3GF kim jong hun 1 124 04-13-2018
01:41 PM
Last Post: plasmajet1990
  Mo wire spraying Arturas 6 699 09-15-2017
01:29 PM
Last Post: Arturas
  Coating on Boiler tube in Coal Fired Power Plan by using Tafa wire 97MXC Iwan Sedaryawan CA 4 1,991 04-21-2017
03:17 PM
Last Post: J!m
  difference between wire fed and powder thermal sprayers. wildlife360 4 1,287 04-13-2017
05:22 PM
Last Post: loriolo
  HVOF 88 WC-12Co Cracking problem on wire drawing capstan Hector Monjardin 7 2,310 10-19-2016
11:55 PM
Last Post: Hector Monjardin
  Wire drawing cracking problem Hector Monjardin 3 1,691 06-23-2016
05:37 PM
Last Post: Hector Monjardin
  Arc wire Bond wtaz 1 1,522 06-29-2015
09:47 PM
Last Post: loriolo
  Mix wire feeding with ArcSpray Met.Eng. 4 2,434 04-28-2015
11:12 PM
Last Post: Met.Eng.
  Wire Flame spray and Twin Arc spraying wtaz 1 1,710 03-30-2015
09:41 PM
Last Post: loriolo
  BONDING WIRE wtaz 3 2,372 01-18-2015
12:09 PM
Last Post: loriolo
  Arc Wire Spraying Bond Strength wtaz 4 3,046 12-04-2014
12:02 AM
Last Post: wtaz
  Hardness with Arc Spray Wire Edson 4 2,707 11-21-2014
11:56 PM
Last Post: loriolo
  MIG WIRE FOR TWIN WIRE ARC SPRAYING wellish 1 2,398 11-14-2014
07:39 PM
Last Post: Met.Eng.
  porosity in bronze wire spray KevGarty 1 1,832 07-22-2014
01:45 AM
Last Post: shantanu
  Parameters of Combustion wire gun Turbo Machinery 3 3,015 05-25-2014
06:07 AM
Last Post: Stephen Booth

  • View a Printable Version
  • Send this Thread to a Friend
  • Subscribe to this thread


User(s) browsing this thread: 1 Guest(s)





Surface Engineering Forum Sponsor - Alphatek Hyperformance Coatings Ltd

    Subscribe in a reader

    Contact Us | Thermal Spray Coatings | Return to Top | Return to Content | Lite (Archive) Mode | RSS Syndication

Powered By MyBB, © 2002-2018 MyBB Group.


© Copyright Gordon England