China Stainless Steel Balls manufacturer

Mirror Polished Carbon Steel Ball 0.5mm-50.8mm 304 Ss420 Ss440

Product Details:
Place of Origin: Shandong
Brand Name: JN
Certification: SGS ISO
Model Number: 0.5mm-50.8mm
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: Steel Balls Grade: G10,G20,G28,G60,G100 G200 G500 G1000
Feature: Strong Rust Resistance Surface: Mirror Polished
Material: Stainless ,chrome Bearing Ball, Carbon Steel Ball Application: Bearing,phamaceutical,bearing Cosmetic Nail Polish
High Light:

stainless steel round balls


round steel balls

Product Description


China Factory 304 ss420 ss440 Steel Balls Stainless Steel Bearing Carbon Steel Ball 0.5mm-50.8mm



Stainless Steel balls are used in valve pumps, nail polish and spray paint bottles for agitation,


sprinkling systems, appliance components, casters, drawer slides, locking mechanisms,


semi-precision bearings and a host of other industrial and consumer products.


Jinnai Steel Ball Company offers a wide range of stainless steel materials such as 201, 302, 304, 316, 316L,


420, 430 and 440C.


Other oem service such as drilling, threading, polishing, plating, cutting,welding and so on both available upon request.


Mirror Polished Carbon Steel Ball 0.5mm-50.8mm 304 Ss420 Ss440 0


Mirror Polished Carbon Steel Ball 0.5mm-50.8mm 304 Ss420 Ss440 1

1-Basic Information


Product Name
Stainless Steel Ball 
304 440 420 201 stainless steel ball
ISO 9100:2008 / ISO/TS:16949
Balls & roller bearings, Linear monition, Automotive components, Balls lead screws, Grinding media, Gardening and household sprayers, Perfume miniature pumps, etc.


2-Chemical Composition of all stainless steel ball

Material C Si Cr Mn P S Ni
201 0.15% Max 1% Max 16%~18% 5.5% Max 0.060% Max 0.03% Max 3.5%5.5%
304 0.08% Max 1% Max 18%~20% 2% Max 0.045% Max 0.03% Max 8%~10.5%
316 0.08% Max 1% Max 16%~18% 2% Max 0.045% Max 0.03% Max 10%~14%
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
201 7.85 g/cm³ 10~25 HRC 53,000 psi Non-magnetic
304 7.93 g/cm³ 10~25 HRC 80,000~180,000 psi Non-magnetic
316 7.98 g/cm³ 10~25 HRC 80,000~120,000 psi Non-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

 Austenitic stainless steel balls with higher corrosion resistance than AISI 304 balls. They show good toughness.


AISI 316L has a lower carbon content (maximum 0,030%). Balls are provided in the passivated condition.

Corrosion Resistance


Very good corrosion resistance with respect to organic substances, good resistance to several strong acids


(acetic, phosphoric, sulphuric acid) and on sea water.


They are subjected to pitting and crevice corrosion in presence of hot chloride solutions and


to stress corrosion when temperature exceeds 60°C.


They do not resist in contact with hydrochloric and hydrofluoric acids, aqua regia, iron and magnesium chlorides.

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

Application Of Steel Balls 


Mirror Polished Carbon Steel Ball 0.5mm-50.8mm 304 Ss420 Ss440 2

Special bearings, pumps and valves, aerosol and dispenser sprayers. Utilised in the foodstuff, paper, chemical, rubber,


military, textile industry. Applications in photographic devices, medical instruments, quick couplings, recirculating balls,


ink cartridges, jewels.


Company Information 


Mirror Polished Carbon Steel Ball 0.5mm-50.8mm 304 Ss420 Ss440 3


Jinnai Stainless Steel Ball Manufacture Co., Ltd is one of famous and professional stainless steel ball factory from china .

With over 20years history,our factory have good reputation from our customers and government,so our factory passed ISO9001:2008 and


our products got SGS,RHOS Certificates .

We mainly produce stainless steel ball (201, 304, 316, 420,420C,440C,430).


also produce chrome steel ball (AISI52100,100CR6,GCR15),


carbon steel ball(1015,1010,1045,1085),


copper brass balls, plastic ball,glass ball,Tungsten carbide ball, flying saucer ball, polishing media ball,ceramic ball,Aluminum ball


and other kinds of material ball.

We have the ability to provide many kinds of steel ball, of which accuracy range is G10-G1000,size 0.4mm-50.8mm.

Welcome to visit our factory and looking forwarder to cooperate with you !



Mirror Polished Carbon Steel Ball 0.5mm-50.8mm 304 Ss420 Ss440 4


Mirror Polished Carbon Steel Ball 0.5mm-50.8mm 304 Ss420 Ss440 5

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