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Precision Ball Metallurgy, ISO 3290 Standards & Application Guides

In-depth technical resources authored by DSP's metallurgy and quality assurance engineers for bearing, valve, automotive, and industrial buyers.

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All Engineering Guides (3)Quality & Metrology Corrosion & Chemical Engineering Metallurgy & Materials

AISI 304, 316L, 420 and 440C stainless steel balls for valves and bearings

★ Featured Engineering GuideCorrosion & Chemical Engineering2 min read · 272 words

Stainless Steel Balls Comparison: AISI 304 vs 316L vs 420 vs 440C Selection Guide

Compare austenitic (AISI 304, 316L) and martensitic (AISI 420, 440C) stainless steel balls across corrosion resistance, hardness, magnetic properties, and valve/bearing applications.

By DSP Metallurgy & Quality Engineering Team · Updated 17 Oct 2026

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