China Stainless Steel Balls manufacturer

1.4125 Precision Bearing Stainless Steel Balls 11/16 Inch 27MM SUS440 440C

Product Details:
Place of Origin: China
Brand Name: JN
Certification: SGS ISO
Model Number: 11/16 Inch 27MM
Payment & Shipping Terms:
Minimum Order Quantity: 500kg
Price: Negotiable
Packaging Details: Ploy bag+25kg carton box+1000kg wooden box
Delivery Time: 7-15 days
Payment Terms: T/T, Western Union, MoneyGram,Paypal, L/C, D/A, D/P
Supply Ability: 10 Tons per Month

Detail Information

Product Name: Bearing Stainless Steel Ball Grade: G100
Material Type: 440 44C Hardness: HRC55-65
Feature: Corrosion Resistance,Anti-rust,Anti-wear,magnetic HS Code: 84829100
High Light:

stainless steel round balls


round steel balls

Product Description

1.4125 Precision Bearing Balls Stainless Steel Ball 11/16 Inch 27MM SUS440 440C



Stainless steel is an alloy of steel which consists of around 89 percent steel, and 11 percent chromium.


The material was developed to handle conventional steel issues with corrosion, and


delivers much greater resistance to both rust and staining.

It is commonly used in manufacturing cutlery, can be used as a large-scale cladding for buildings,


and is often used to make medical tools, where avoiding rust and keeping implements clean is a high priority.

440 OR 440C Stainless Steel Is Hardened Stainless Steel Balls

Hardened stainless steel balls are generally made using Martensitic processes, which adds carbon to the material


and makes it tougher and harder wearing. They are also usually provided in a passivated condition,


which adds an extra micro-coating to make them even more durable.

These hardened balls tend to be used as industrial bearings, in specialist pumps, pens, cigarette lighters,


and other situations where friction is involved.


Chemical Composition


Material C Si Cr Mn P S Ni
440 0.95%~1.2% 1% Max 16%~18% 1% Max 0.40% Max 0.03% Max -


Mechanical Properties


Material Density Hardness Tensile Strength Magnetic
440 7.70 g/cm³ 56~65 HRC 275,000~285,000 psi  


International Standards


UK -
CHN 9Cr18Mo
RUS 95X18
ITA X105CrMo17
FRA Z100CD17
GER 1.4125



440C: Martensitic hardened stainless steel balls, they feature remarkable hardness, wear resistance, surface finishing,


narrow dimensional tolerances. For that reason this type of steel is frequently used in precision devices.


Balls are provided in the passivated condition.

Corrosion Resistance

440C: The material resists to corrosion in contact with freshwater, steam, oil, petrol, alcohol.


They are subjected to pitting corrosion in sea water environments. Poor corrosion resistance in acid environments.


440C: Precision bearings, anti-friction bearings, special valves, conveyor belts and rollers, ballpoint pens.


They are used in foodstuff, medical instruments, quick couplings, recirculating ball bearings, knotting devices,


oil refinery devices.

1.4125 Precision Bearing Stainless Steel Balls 11/16 Inch 27MM SUS440 440C 0




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