Stainless Steel AISI 302/304

AISI 302 and 304 balls are for applications where material toughness and resistance to corrosion are more important than hardness. They have good corrosion resistance to the food environment, oxidizing solutions and most organic chemicals. Applications are valves, aerosol and finger pumps. Corrosion resistance is higher after annealing and passivation. Not resistant to sulphuric acids.

International Equivalents

DIN X5 CR Ni 18.09, AFN Z6 CN 18.09, EN58E, JIS SUS 304 Wks 1.4301

 

Material Specification

Composition

302

304

C 0.15 % Max 0.08 % Max
Cr 17 – 19 % 18 – 20 %
Ni 8 – 10 % 8 – 10 %
Si 1.0 % Max 1.0 % Max
Mo 1.0 % Max
Mn 2.0 % Max 2.0 % Max
P 0.045 % Max 0.045 % Max
S 0.03 % Max 0.03 % Max

 

Hardness

HRc 25 – 39
H.B. 140 – 160

(Annealed hardness on request)

 

Mechanical Properties

Tensile Strength 100,000 – 180,000 psi
Yield Strength 50,000 – 150,000 psi
Density 0.286 lbs/cu in

 

Size Range

1.588mm (1/16″) to 50.80mm (2″)

 

Standard Grades Available

50
100
200
1000

VTLG Asia is the first Asian-based German supplier of products and services to the capital equipment and Industrial component industry. For inquiries and requests please contact us at: paulyang@vtlg-asia.com. VTLG specializes in supplying ball products to the linear guide, ball screw and ball retainer industry.