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304/304L Stainless Ball Manufacture

Stainless Steel Ball(304, 304L) is a type of ball made from stainless steel

Premium 304 Stainless Steel Ball Manufacturer

304/304L stainless steel ball is a widely used steel ball on the market. It can be used in medical equipment, chemical industry, aviation, aerospace, plastic hardware: perfume bottles, sprayers, valves, nail polish, motors, switches, electric irons.As a leading stainless steel ball manufacturer and supplier in China, Risheng provides high-precision 304/304L stainless steel balls in bulk for global industrial buyers. We offer factory-direct prices, customized sizes (OEM), and fast delivery for large-scale manufacturing needs.

Precision Specifications from Our Manufacturer Plant

AISI 304 / SUS304 / 1.4301 Material Equivalents Table

US Standard (USA) Japan Standard (JIS) Germany Standard (DIN) Digital Number (W.-Nr.)
304 304 X5CrNi18-10 1.4301

Chemical Composition Analysis of SUS304 / 1.4301 Steel Balls

  C Si Mn P s Cr Ni
304 ≤0.07% ≤1.00% ≤2.00%  ≤0.045% 

≤0.03%

17.0-19.0% 8.0-10.5%
304L ≤0.03% ≤1.00% ≤2.00% ≤0.045% ≤0.03% 18.0-20.0% 8.0-12.0%

304/304L Stainless Steel Ball Physical Properties

Item Parameters
Tensile strength 100,000 to 180,000 psi
Yield strength 50,000 to 150,000 psi
Elongation 55 to 60%
Elastic modulus 29,000,000 psi
Density .286 lbs/cubic inch

Grade: G100 to G1000

  Ball diameter variation Spherical deviation Surface roughness Diameter variation Diameter tolerance
Gade Vdws △Sph Ra Vdwl Tdn
Not Over
μm
40 1 1 0.08 2 *
60 1.5 1.5 1 3 *
100 2.5 2.5 0.1 5 ±12.5
200 5 5 0.15 10 ±25
500 12.5 12.5 * 25 ±50
1000 25 25 * 50 ±125

How to Build 304/304L Stainless Steel Balls

Cold Heading

The cold heading uses equipmentZ32-7.5. The purpose is to be able to punch the steel wire out of the qualified ball blank. After the AISI 304 Stainless steel balls is cold heading, the next processing process is carried out.

Screening

Screening, the balls after the hard grinding is initially screened through the screening machine, and the unqualified ball will be eliminated.

Polish Steel Balls

Polishing ball process is to initially polish the ball blank into a circle. It's a very important process.

Soft Grinding

The machine M360 is ued for soft grinding.

Oil Removal

Oil removal equipment, put the ball into the equipment, after screening, separate the ball from the oil.

Hard Grinding

Hard grinding is the method of grinding the ball after heat treatment with grinding wheel in the grinding machine. Its role is to further improve the accuracy and surface quality.

Measuring Instrumentation

After the hard grinding, the steel ball will be measured in accuracy, hardness, etc., and the three-needle measuring instrument will be used to check whether the expected effect is achieved.

Cleaning

After screening, the steel ball is cleaned again and then dried.

Sorting

After cleaning, the steel ball will be qualified into the container through the sorting machine, and finally manually test to complete the whole process of steel ball production.

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NOT SURE WHICH 304/304L STAINLESS BALL RIGHT FOR YOU?

Key Material Advantages of AISI 304 / SUS304 / 1.4301 Stainless Steel Balls

Outstanding Corrosion Resistance: Our AISI 304 steel balls deliver excellent passivity against food acids and atmospheric oxidation.
Food-Grade & Sanitary Safety : Our SUS304 stainless steel balls are thoroughly degreased and chemically stable, making them completely safe for food machinery and medical hardware.
Stable Non-Magnetic Performance : While cold heading introduces slight magnetism, Risheng utilizes a specialized hydrogen annealing process to thoroughly demagnetize our 1.4301 steel balls for sensitive cosmetic valves.
Superior Cost-Efficiency : Compared to 316L, our wholesale 304 steel balls offer a highly economical structural alternative for industries requiring solid rust prevention without high marine-chloride exposure.

Industrial Applications & OEM Solutions of 304 Stainless Steel Balls

Cosmetic Trigger Sprayers, Lotion Pumps & Aerosol Valves
Our non-magnetic 304 stainless steel balls serve as high-fluidity check valves in perfume atomizers, liquid soap dispensers, and household chemical spray triggers. As a specialized lotion pump steel ball manufacturer, we guarantee zero chemical reaction with oils or liquids.

Food-Grade Processing Machinery & Medical Hardware
Being completely sanitary, our 1.4301 stainless steel balls are widely chosen by food engineering brands for beverage mixing valves, dairy processing blenders, medical injection syringes, and agricultural spray equipment.
AISI 304 / SUS304 / 1.4301 stainless steel balls for Cosmetic Trigger Sprayers
 

 

304 statinless steel balls
 

 

304 statinless steel ball
 

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Our Factory

Changzhou Risheng Steel Ball Co., Ltd. is located on the eastern shore of Taihu Lake, adjacent to Shanghai, with convenient transportation. Since its establishment in June 1995, the company has been dedicated to developing and manufacturing steel balls, integrating research and development with trade.

For many years, Risheng building on the foundation of the Wujin Metal Ball Research Institute, has been committed to researching steel ball manufacturing technology. We primarily produce shaft steel balls (AISI 52100), stainless steel balls (AISI 201/304/316/420/440/430), and carbon steel balls (AISI 1015/1045/1085) with diameters ranging from 0.8mm to 25.4mm, with precision grades up to G10, G40, and G100 for OEM precision steel balls
 . We are also Custom size steel balls manufacturer for alloy steel balls, military steel balls, copper balls, UFO balls, ceramic balls, and other metal balls. 

Seaworthy Packaging & Global Delivery of Wholesale 304 Steel Balls

1.High-Strength Inner Packaging & Surface Protection
To prevent metal-to-metal friction and surface abrasions, each 304L precision ball is secured using shock-absorbent materials.
Shockproof Foam Bags: Tailored for smaller batches to eliminate impact energy.
Custom Molded Plastic Trays: For high-precision grade orders, custom grids keep each stainless steel sphere isolated, preventing scratches and maintaining strict G10-G1000 tolerances.

2.Anti-Corrosion & Moisture-Proof Barriers
While 304-grade stainless steel offers excellent corrosion resistance, long-term sea freight exposure to salt air can be harsh.
Desiccant Integration: We include high-grade moisture-proofing agents (silica gel packs) within the primary seal.

3.Reinforced Outer Packaging for Global Transit
We offer scalable industrial-strength housing based on your order volume:
Heavy-Duty Corrugated Cartons: Double-walled, thickened fiberboard tested for burst strength.

4.Precision Labeling & Traceability
Every shipment features comprehensive logistical labeling to streamline your warehouse receiving process:
Product Specifications: Clear marking of Grade (304/304L), Diameter (mm/inch), and Quantity.
Quality Assurance: Batch numbers for full material traceability.

Sourcing & Service Process for 304 Stainless Steel Balls
Professional OEM/ODM service process and procurement guide for wholesale AISI 304 / SUS304 / 1.4301 stainless steel balls from China manufacturer Risheng
  • 1
    Speciality SERVICES
    As a direct precision steel ball manufacturer, we offer customized OEM/ODM solutions for bulk orders. We align strictly with your B2B procurement requirements to specify the exact tolerances for custom 304 stainless steel balls, providing rapid production-grade prototypes for engineering validation before mass manufacturing.
  • 2
    Quality SERVICES
    We guarantee consistent, high-volume quality for wholesale 304 SS balls. Every batch undergoes rigorous automated surface and dimensional inspections to meet global supply chain standards. All shipments are backed by full Material Test Reports (MTRs) and strict factory quality control.
  • 3
    Extra Mile PRICING
    We streamline your global sourcing experience with competitive factory direct prices and heavy-duty, anti-rust export packaging. We provide seamless international shipping coordination (FOB/DDP) and dedicated after-sales support to ensure a stable, long-term supplier partnership.
Quality Certification
FAQ of 304/304L Stainless Steel Ball

Consult Our Steel Ball Machine Experts — Quote Within 24 Hours

Tell us your ball material, diameter, hardness, required accuracy and production capacity. RISHENG will recommend the suitable 3M7480 Steel Ball Grinding Machine or 3ML4780D Steel Ball Lapping Machine and provide a technical proposal and quotation within 24 hours.
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  +852 6825 8658
    Panjia Town, Summer Villa Village ,Wujin District, Changzhou City, China
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