1.4361 / UR™ S1: A 4% Si, austenitic stainless steel resistant to nitric acid solutions
Research shows that a strong addition of silicon to austenitic stainless steels of the 18/10 type has a favorable influence on resistance to transpassive intergranular corrosion.
This type of corrosion develops particularly in very concentrated nitric environments ( > 90%) up to boiling point, also in strongly oxidizing nitric environments (oxidizing ions present such as: hexavalent chromium, pentavalent vanadium - ferritic salts etc...).
PROPERTIES :
STANDARD
> EURONORM :
EN 1.4361
X1 Cr Ni Si 18-15-4
> ASTM :
UNS S30600
CHEMICAL ANALYSIS - WEIGHT %
Typical values
C
≤.0.15
Cr
17
Ni
14.5
Mo
N
-
Others
Si=4
PREN [Cr%] + 3.3 [Mo%] + 16 [N%] ≥ 17
CORROSION RESISTANCE :
1.4361 / UR™ S1 has a chemical composition adapted to work in the transpassive zone. It resists perfectly to intergranular corrosion.
APPLICATIONS :
⦁ Mineral chemistry
Production of concentrated HNO3
⦁ Organic chemistry
Use of concentrated HNO3 (nitration)
⦁ Nuclear industry
Evaporator working in nitric environment, to concentrate products of fusion
⦁ Metallurgical industry
Tanks - equipment destined for nitrogen sulphite mixtures
⦁ Chemical industry
Chrome sulphite mixtures, very oxyding solutions
⦁ Explosive industry
⦁ Aerospatial industry
Rocket tanks
⦁ Galvanotechnology
EXPERTISE IN :
FERTILIZERS I SULFURIC ACID I AMMONIA I NITRATES I PHOSPHATES I CARBAMATE/UREA I POTASH I SYNGAS I MVC I CHLORIDES
Adress
TELUS
23 Salzbaach L-9559 WILTZ
Luxembourg
TVA/VAT : LU261.290.75
Authorization n°10037225/0
Share Capital : 375.000 €