420 stainless steel balls are commonly used in industries that demand high precision and corrosion resistance: motorcycle accessories, pulleys, stainless steel bearings, plastic bearings, crafts, valves, and oil.

Material Comparison:

Domestic 420 steel balls are mainly divided into two types: 2Cr13 steel balls (equivalent to Japanese standard SUS420J1 stainless steel balls) and 3Cr13 steel balls (equivalent to Japanese standard SUS420J2 stainless steel balls). Both types of steel balls possess hardness. Many clients have a misconception that 410 stainless steel balls (equivalent to Chinese standard 1Cr13 steel balls) and 430 stainless steel balls (1Cr17 steel balls) also have hardness. Although both are 4-series stainless steel balls, their microstructures differ: one is a martensitic steel, while the other is a ferritic steel. (All materials provided by our company are original; any similarities are coincidental and not plagiarism.)

Features:

Representative of the Malleable Iron Steel, commonly known as stainless iron, magnetic, with good rust resistance, and high hardness of HRC 50-55.

420 Stainless Steel Ball Chemical Composition

C

0.26-0．35%

Cr

12.0-14.0%

Si

1.00%

Mn

1.0% Max.

P

0.04%

S

0.03%

Mo

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420 Stainless Steel Ball Physical Properties

Tensile strength

280,000 psi

Yield Strength

270,000 psi

Elastic Modulus

29,000,000 psi

Density

0.275 lbs/cubic inch