Wholesale Popular AISI304/306/316/320/400/440/440c Stainless Steel Ball for Bearing/Valve/Bicycle Parts/Motorcycle Parts

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Wholesale Popular AISI304/306/316/320/400/440/440c Stainless Steel Ball for Bearing/Valve/Bicycle Parts/Motorcycle Parts

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Product Description

Basic Specifications

Standard Parts:

Yes

Universal:

Yes

Type:

Bearing Ball

Material:

Stainless Steel

Feature:

AISI400 Series and AIS300 Series

Certificate:

ISO9001:2015

Grade:

10-1000

Samples:

Free ≤10 PCS

Specification:

0.5-150

HS Code:

84829100

Capacity:

500,000PCS/Week

★

Product Description

Name	Material	Dia. Range (mm)	Grade
Stainless Steel Ball	AISI302/304/304L/316/316L	2.381 - 12.7	G40 - G1000
	AISI302/304/304L/316/316L	13.494 - 35	G200 - G1000
	AISI420/420C/440/440C/430	2.381-15.875	G10 - 1000
	AISI420/420C/440/440C/430	16 - 44.45	G16 - G1000

Applications:

300 Series: Trigger sprayers, Bearings, Dispenser valves, Body jewelry lotion pumps, etc.
400 Series: Bearing applications, Valves, Locking mechanisms, Fasteners, etc.

⚙

Chemical Composition & Properties

AISI Number	C%	Si%	Mn%	Cr%	Ni%	Mo%	Property
AISI 304	0.07 MAX	1.00 MAX	2.00 MAX	17.0~19.0	8.0~10.5	-	Slightly magnetic, HRC 25min.
AISI 316	0.07 MAX	1.00 MAX	2.00 MAX	16.5~18.5	10.5~13.5	2.00~2.50	High corrosion resistance (acid/ink)
AISI 420	0.07~0.25	1.00 MAX	1.00 MAX	12.0~14.0	-	-	Magnetic, HRC 50min.
AISI 430	0.08 MAX	1.00 MAX	1.00 MAX	15.5~17.5	-	-	Ferritic, high temperature resistant
AISI 440	0.95~1.20	1.00 MAX	1.00 MAX	16.0~18.0	-	-	Martensite, good for food/oil products

✔

Quality Control & Process

Hardness:

HRC25-39 (Custom available)

Surface:

Bright, Zero Defect

Safe:

RoHS, SGS Certified

Standard Packaging Steps:

Weighing (approx. 10kg per unit)
Sealing in plastic bags
Placement in small labeled boxes (Material, Lot No, Size, Grade)
Final packing into plywood cases

➔

Steel Ball Production Process

Frequently Asked Questions

What grades of stainless steel balls are available?

We provide a wide range of grades from G10 to G1000, covering both high-precision and standard industrial requirements.

Which series is better for corrosion resistance?

The 300 series (like AISI 304 and 316) offers superior corrosion resistance compared to the 400 series, making them ideal for chemical and medical applications.

Are the steel balls magnetic?

The 400 series (420, 430, 440) are magnetic, while the 300 series (304, 316) are typically non-magnetic or only slightly magnetic after processing.

Can I request a specific hardness for my application?

Yes, while our standard hardness ranges from HRC25 to HRC39 (or HRC50+ for certain 400 series), special hardness levels can be manufactured according to your specific requirements.

What certifications do your products hold?

Our manufacturing processes are ISO 9001:2015 certified, and our products comply with RoHS and SGS safety standards.

What is the typical delivery package?

Standard packaging includes weighing the balls into 10kg plastic bags, which are then placed in small labeled boxes and finally secured in plywood cases for global export.

Product Detail

Wholesale Popular AISI304/306/316/320/400/440/440c Stainless Steel Ball for Bearing/Valve/Bicycle Parts/Motorcycle Parts

Product Description

Basic Specifications

Product Description

Chemical Composition & Properties

Quality Control & Process

Steel Ball Production Process

Frequently Asked Questions

Related Products

Product Detail

Wholesale Popular AISI304/306/316/320/400/440/440c Stainless Steel Ball for Bearing/Valve/Bicycle Parts/Motorcycle Parts

Product Description

Basic Specifications

Product Description

Chemical Composition & Properties

Quality Control & Process

Steel Ball Production Process

Frequently Asked Questions

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