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China Stainless Steel Balls manufacturer

1/8" Inch 3.175MM SUS420 Stainless Steel Bearing Balls G25 For Surgical

Product Details:
Place of Origin: China
Brand Name: JN
Certification: SGS ISO
Model Number: 1/8" Inch 3.175MM
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: 100 Tons per Month

Detail Information

Material: Stainless Steel 420 Product Name: Bearing Stainless Steel Ball
Application: Surgical Feature: Corrosion Resistance,Anti-rust, Magnetic
Tolerance: 0.002~0.02mm Refers To Grade Exterior Finish: Smooth
High Light:

stainless steel round balls


solid metal ball

Product Description

1/8" Inch 3.175MM SUS420 Stainless Steel Bearing Balls G25 For Surgical


High precision grade G25

Finest quality AISI 420 stainless steel

Manufactured in China


Product description


The finest quality 420 Stainless steel produced in accordance with the highest industry standards.


These high precision G25 ball bearings are hot forged from bar stock.


Modern furnaces with precisely controlled atmospheres and temperatures are used for heat treating


to assure uniform hardness and proper microstructure for each Stainless steel ball.


Throughout the manufacturing process, statistical process control assures tolerance accuracy,


fine surface finish and consistent high quality.


Stainless steel balls afford the advantage of maximum hardness combined with corrosion-resisting properties.


This hardness, together with precise geometry and fine surface finish, makes them especially useful for bearing


and Valve applications where severe environmental conditions may occur.


1-Basic Information

Material AISI 201,304,316,420,430,440
Size Range 0.1mm - 200mm
Grade G10 G16 G28 G100 G200 G500 G1000
Corrosion Resistance Corrosion Resistance



2-Chemical Composition

Material C Si Cr Mn P S Ni
420 0.15 % Max 1% Max 12%~14% 1% Max 0.040% Max 0.03% Max -
430 0.12% Max 1% Max 16%~18% 1% Max 0.040% Max 0.03% Max -
440 0.95%~1.2% 1% Max 16%~18% 1% Max 0.40% Max 0.03% Max -


3-Mechanical Properties

Material Density Hardness Tensile Strength Magnetic
420 7.75 g/cm³ 48~55 HRC 95,000~250,000 psi Magnetic
430 7.73 g/cm³ 52~60 HRC 107,000~140,000 psi Magnetic
440 7.70 g/cm³ 56~65 HRC 275,000~285,000 psi


International Standards


  201 304 316 420C 440C
JAP SUS201 SUS304 SUS316 - SUS440C
UK 201S01 304S15 316S16 - -
CHN 1Cr17Mn6Ni5N 0Cr18Ni9 0Cr17Ni12Mo2 4Cr13 9Cr18Mo
RUS 14Ch18N4G4L 08KH18N10 08KH16N11M3 40Kh13 95X18
ITA - X5CrNi18-10 X5CrNiMo1712 X46Cr13 X105CrMo17
FRA Z12CMN17-07Az Z7CN18-09 Z6CND17.11 Z34C14 Z100CD17
GER 1.4372 1.4301 1.4401 1.4034 1.4125


420C: Martensitic hardened stainless steel balls, they feature good hardness, corrosion resistance,


wear and abrasion resistance. Balls are provided in the passivated condition.

Corrosion Resistance

420C: Good corrosion resistance in industrial atmosphere, freshwater, steam, alcool, ammonium,


several oilfield products and organic compounds, dairy products, mild acid environments.


Fairish in foodstuff and alkaline solutions. Fair in salt atmosphere.


It does not resist in contact with sea water and strong acids (even if diluted).



420C: Special bearings, anti-friction bearings, special pumps, recirculating balls, lighters, pens, automotive seatbelts & components.

1/8" Inch 3.175MM SUS420 Stainless Steel Bearing Balls G25 For Surgical 0



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