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Corrosion Resisting Alloy S129

Data Sheet S129

Chemical Composition Limits

Weight % C

Si

Mn P+S max Cr Mo

Ni

Others
S129 0.12 max 0.20/1.00 0.50/2.00 0.035P 0.025S 17.00/19.00 - 8.00/11.00 Ti5XC min
2S129 0.08 max 0.20/1.00 0.50/2.00 0.035P 0.025S 17.00/19.00 0.070 max 8.00/11.00 Ti5XC/0.80

Chemically similar British Specifications   BS.970 Pt4.

Weight % C

Si

Mn P+S max Cr Mo

Ni

Others

321S20

321S12 (EN58 B/C)

0.12 max 0.20/1.00 0.50/2.00 0.045P 0.030S 17.00/19.00 - 8.00/11.00 5XC / 0.90 (Ti)
Other Chemically similar Specifications
Weight % C

Si

Mn P+S max Cr Mo Ni Others
AFNOR Z10CNT 18-11

Z6CNT18-11

0.12 max 1.00 max 2.00 max 0.040P 0.030S 17.00/19.00 - 10.00/12.00 Ti5XC/0.80

AISI 321/

SAE 30321

0.80 max 1.00 max 2.00 max

0.045P

0.030S

17.00/19.00 - 9.00/ 12.00

Ti 5XC/min

AMS 5645

0.80 max 1.00 max 2.00 max

0.040P

0.030S

17.00/19.00 0.75 max 8.00/ 12.00

Ti 6XC/0.70

Cu 0.050 max

MIL-S-862B 321 0.80 max 1.00 max 2.00 max

0.045P

0.030S

17.00/ 19.00 - 9.00/ 12.00

Ti 5XC

MIL-S-27419 321 0.80 max 1.00 max 2.00 max

0.025

17.00/20.00 - 9.00/ 13.00

Ti 0.75max

Cu 0.70max

WS 1.4541 X10CrNiTi18 9 1.00 max 1.00 max 2.00 max

0.045P

0.030S

17.00/ 19.00 - 9.00/ 11.50

Ti 5XCmin

 

Austenitic Steel
EN AISI UNS

International

names

Usual names Standards or Specifications
1.4541 321 S32100 GB: S129

Z10CNT18-10

Z6CNT18-10

X6CrNiTi18

 

AIR 9160 C

DMD 276-22

AMS-QQS763 321

ASNA3202

ASNA3139 

BLFG248101

AMS5645 

BLFE248101 

prEN 3487

CR 1.3.0.5 

DMD 0276-22 

GAM MM02

SM16602 

prEN 2462

LA 31 

LA 297

 

 

General characteristics
Core 321/4541 is a titanium-stabilized austenitic stainless steel with improved intergranular corrosion resistance for an extended temperature range. 321 / EN 1.4541 is an austenitic stainless steel that belongs to the standard CrNi stainless steel family. 321 / EN 1.4541 can be welded without becoming susceptible to intergranular corrosion.

The austenitic CrNi standard grades are the most widely used group of stainless steels. 
Their well-balanced material properties make them suitable for the fabrication of many products. 
Due to its titanium content, 321 / EN 1.4541 can be used at elevated temperatures. 
For high-temperature applications, the use of the optimised high-temperature 321H / EN 1.4878 is recommended.
321 / EN 1.4541 is available in many product forms and dimensions, 
Polishing of 321 / EN 1.4541 is limited due to its titanium alloying.


Typical applications
Annealing covers
Stack liners
Automotive exhaust systems
Welded pressure vessels
Flanges and valves

 

Disclaimer

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

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