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Stainless Steel balls

440C, 316/316L and 17-4 PH for corrosion and bearing service.

Material
Size range
Std. grade

1/4" – 5"

100

1 1/16" – 4"

200

1 1/16" – 2 1/4"

100

At a glance

Grades offered3

440C Stainless Steel

Grade 100

Medium wear, mild corrosion resistance — affordable, suitable for valve, pump & bearing applications.

Grade specifications

MaterialAISI Type 440 SS

Hardness58 – 65 RC

Density.275 lbs/cu.in.

Size range1/4" – 5"

Chemical compositionC 0.86–1.20% / Cr 16.0–18.0% / Ni 7.5% max / Mo 1.0% max

Grade 200

Superior corrosion resistance, higher resistance to pitting.

Grade specifications

MaterialStainless Type 316 / 316L

Hardness88 – 90 RB

Density.287 lbs/cu.in.

Size range1 1/16" – 4"

Chemical compositionCr 16.0–18.0% / Ni 10.0–14.0% / Mo 2.00–3.00%

Grade 100

Superior corrosion resistance, good resistance to stress-corrosion cracking and erosion-corrosion.

Grade specifications

MaterialStainless Type 630 (17Cr-4Ni)

Hardness43 – 45 RC

Density.290 lbs/cu.in.

Size range1 1/16" – 2 1/4"

Chemical compositionCr 15.0–17.5% / Ni 3.00–5.00% / Cu 3.00–5.00%

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