AISI 904L Stainless Steel Balls

Austenitic stainless steel, this material shows the highest corrosion resistance properties. This steel show excellent corrosion resistance against acids like phosphorous and sulphuric. As a standard practice at the Tolia Group all stainless steel 904L balls are supplied in a passivated condition.

Applications :
  • Chemical / Nuclear Industries
  • Applications where Alkaline water is in contact with the balls
  • Special valves
Chemical composition
%C %Si %Mn %P %S %Cr %Ni %N %Mo %Cu
0.020 max 1.00 max 2.00 max 0.045 max 0.035 max 19.00-23.00 23.00-28.00 0.100 max 4.00-5.00 1.00-2.00
International Standards and material codes
USA ITA GER FRA UK JAP
904L X1 NiCrMoCu 25-20-5 1.4539 Z 2 NCDU 25-20 904S13 SUS 890L
Technical Properties
Property Type U.o.M. Values U.o.M. Values
Hardness Mechanical [HRB] 65 - 95 - -
Ultimate tensile strength Mechanical [MPa] 520 - 620 [psix10^3] 76 - 89
Size Range/Grade selection
Product Size Range U.o.M. Grade Capabilities
Balls 3.00 mm to 40.00 mm [mm] GR.40 to GR.2000 as per any international standard.

Comparison Chart- Material Corrosion Resistance

Material

CORROSION RESISTANCE
Air Water Food Liquor Dilute Acid Conc. Acid Chemical
Industrial Atmosphere Salt Air Wet Steam Domestic Water Sea Water Food Product Fruit & Veg. Juice Dairy Product Hot Sulfate Dye HCL H2SO4 HNO3 Phosphoric H2SO4 HNO3 Phosphoric Ammonia Alkaline Salt
AISI-E-52100 3 4 4 2 3
AISI-420 2 4 1 1 3 3 2 3 2 3
AISI 420C 2 4 1 1 3 3 2 3 2 3
AISI 440C 2 3 2 2 2 2 3 4 3 2
AISI 304/302 2 1 1 1 1 1 2 2 1 4 2 2 2 2 😑 2 2 1 1
AISI 316 2 1 1 1 1 1 1 1 2 4 2 1 2 1 1 1 1 2
AISI 1085 3 4 4 2 3

1=Excellent 2 = Good 3 = Fair 4 = Poor

← Will not withstand corrosion

😑 Varies

* = satisfactory only over 75% concentration