SS-400 Series Stainless Steel Balls
Alloy Reference: Martensitic Stainless Steel Balls, SS410 Balls (UNS S41000, 1.4006), SS420 Balls (UNS S42000, 1.4021), SS440C Balls (UNS S44004, 1.4125), Magnetic Steel Balls, Hardened Stainless Steel Balls, Cutlery Grade Steel Balls
Martensitic stainless steel balls (SS 400 series including 410, 420, 440C) from Rama & Sons. Known for high hardness, good wear resistance, and magnetic properties after heat treatment. Ideal for valves and bearings.
Martensitic Hardened Stainless Steel (AISI 440C / 420)
All raw material melt batches are verified by optical emission spectrometry.
Technical Overview & Engineering Standards: SS-400 Series Stainless Steel Balls
Martensitic stainless steel balls (SS 400 series including 410, 420, 440C) from Rama & Sons. Known for high hardness, good wear resistance, and magnetic properties after heat treatment. Ideal for valves and bearings. As an established precision manufacturer, Rama & Sons delivers ferrous balls that meet strict international ISO 3290 and DIN 5401 standards for roundness, hardness, and surface finish.
Key Engineering Advantages
- Precision lapped for tight sphericity and dimensional accuracy.
- High resistance to wear, fatigue, and heavy rolling contact.
- 100% optical sorting and Rockwell hardness inspection.
- Available in custom decimal diameters with no MOQ penalty.
Manufacturing Quality Control
Every batch of SS-400 Series Stainless Steel Balls is produced under ISO 9001:2015 certified quality processes. Testing includes chemical spectrometry, laser roundness measurement, and eddy-current flaw detection, ensuring zero field defects for critical OEM assemblies.
Need Material Testing Reports or Custom Samples?
We provide EN 10204 3.1 inspection reports and dispatch pre-production qualification samples within 3 to 5 business days.
Frequently Asked Questions: SS-400 Series Stainless Steel Balls
Industries That Use SS-400 Series Stainless Steel Balls
Engineered to meet the exact tolerances and durability requirements of mission-critical global sectors.
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