Cost-Effective Stainless Choice
Reduced nickel content helps control material cost for suitable high-volume programs.
COST-EFFECTIVE AUSTENITIC STAINLESS STEEL
AISI 201 Stainless Steel Balls
Cost-effective stainless steel balls for general industrial, hardware and high-volume applications.
AISI 201 stainless steel balls provide an economical stainless solution for applications requiring a polished surface, useful mechanical properties and moderate corrosion resistance without the higher alloy cost of AISI 304 or 316.
As a chromium-manganese austenitic stainless steel with reduced nickel content, AISI 201 is widely selected for hardware components, household appliances, furniture fittings, casters, decorative products, switches, light-duty mechanisms and other general industrial applications.
SDBALLS supplies precision AISI 201 stainless steel balls in metric and inch sizes with controlled diameter, roundness and surface finish for OEM, distributor and volume purchasing programs.
Polished Surface Appearance
Ground and polished finishes support visible hardware, furniture and decorative components.
General Industrial Utility
Useful mechanical properties and moderate corrosion resistance for controlled service environments.
OEM Supply Flexibility
Metric and inch sizes, multiple grades, finishes and packaging formats can be reviewed by specification.
PRODUCT OVERVIEW
An economical stainless option for suitable service conditions.
AISI 201 is a chromium-manganese austenitic stainless steel that uses manganese and nitrogen to replace part of the nickel content found in conventional chromium-nickel stainless grades. This chemistry can deliver an attractive polished surface and useful strength while helping manage alloy cost.
The material is best positioned for general industrial, hardware and visible-component applications where moderate corrosion resistance is sufficient. Final selection must still consider load, environment, cleaning media, temperature, ball diameter, grade and expected service life.
TECHNICAL SPECIFICATIONS
Specify the measurable requirement.
Values shown are sourcing and engineering references. Final capability is confirmed against the order specification, production route and approved documentation.
SpecificationSDBALLS Capability
MaterialAISI 201 Stainless Steel
Stainless TypeChromium-Manganese Austenitic Stainless Steel
Common DesignationsAISI 201 / SUS 201
Product FormSolid Precision Ball
Diameter Range1.0–50.8 mm; metric and inch sizes
Precision GradeG100 / G200 / G500 / G1000
HardnessFinal hardness according to production condition and approved specification
DensityApproximately 7.8–7.9 g/cm³
Surface FinishGround / Polished / High-Gloss
Corrosion ResistanceModerate; lower than AISI 304 and AISI 316
Magnetic ResponseMay vary after cold working and forming
CustomizationSize, grade, finish, inspection and packaging by project review
CHEMICAL COMPOSITION REFERENCE
Typical AISI 201 alloy ranges.
Actual chemistry is governed by the applicable material standard and the material certificate supplied for the approved order.
ElementTypical Reference Range
Chromium (Cr)16.0–18.0%
Manganese (Mn)5.5–7.5%
Nickel (Ni)3.5–5.5%
Carbon (C)≤0.15%
Silicon (Si)≤1.00%
Nitrogen (N)≤0.25%
Reference values are not a substitute for a batch-specific material certificate. Request certificate requirements at the RFQ stage.
TYPICAL APPLICATIONS
Best suited to controlled general-industrial environments.
AISI 201 is commonly evaluated for high-volume applications where polished appearance, useful mechanical properties and moderate corrosion resistance align with the operating conditions.
Hardware & Furniture
Furniture fittings, drawer slides, cabinet hardware, casters and general hardware mechanisms.
Household Appliances
Appliance components, switch mechanisms, consumer hardware and light-duty rolling mechanisms used in controlled environments.
Luggage & Mobility Hardware
Luggage components, wheels, casters and rolling hardware selected around load, size and surface requirements.
Decorative & Consumer Products
Decorative hardware, crafts, lighting components and other visible polished components.
Plastic & Die-Cast Assemblies
Positioning balls and mechanical interfaces used in plastic-product mechanisms and die-cast assemblies.
General Industrial Components
Light-duty mechanisms, low-corrosion assemblies and cost-sensitive OEM components where the approved specification matches service conditions.
STAINLESS STEEL GRADE COMPARISON
AISI 201 vs. AISI 304 vs. AISI 316.
Use the operating environment—not price alone—to select the stainless grade.
Typical PositioningCost-effective general industrial useGeneral-purpose corrosion resistanceHigher corrosion resistance
Relative Nickel ContentLowerHigher than 201Higher alloy content with molybdenum
Corrosion ResistanceModerateGood general resistanceBest of the three in many chloride environments
Typical FitHardware, furniture, appliancesGeneral industrial and consumer productsMarine, chemical and demanding environments after validation
Relative Cost LevelLowerMediumHigher
ENGINEERING BOUNDARIES
Corrosion and magnetic behavior must be application-checked.
Do not over-specify AISI 201.
AISI 201 is not generally the preferred material for marine exposure, aggressive chemicals, high-chloride environments, or food and medical uses unless the complete material, compliance and service requirements have been independently validated.
Cold work can change magnetic behavior.
Austenitic stainless steels may show low magnetic response in the solution-treated condition, but cold working during ball production can increase magnetism. Specify a measurable magnetic requirement when it matters to the assembly.
QUALITY & INSPECTION
Inspection aligned with the approved purchasing specification.
Available documentation and inspection scope follow SDBALLS capability and the requirements confirmed during quotation.
- Raw material verification
- Diameter and tolerance inspection
- Roundness / sphericity inspection
- Surface condition inspection
- Hardness verification when specified
- Precision-grade verification
- Batch identification and traceability
- Final visual inspection
PACKAGING OPTIONS
Packaging coordinated around quantity, finish and destination.
Precision bags, plastic containers, cartons, pails, steel drums, palletized export packaging and customized OEM formats can be reviewed for volume or smaller industrial orders. Final packing depends on ball diameter, surface protection, order quantity, handling method and shipping destination.
BUYER RFQ GUIDE
What to include in an AISI 201 ball inquiry.
Clear measurable requirements help engineering and procurement teams compare the correct material and production route.
- Diameter in metric or inch units
- Quantity and forecast volume
- Required precision grade
- Diameter tolerance, if separately specified
- Application and component function
- Operating environment and corrosion exposure
- Required surface finish
- Magnetic requirement, if any
- Required material and inspection documents
- Packaging and labeling requirement
AISI 201 STAINLESS STEEL BALL FAQ
Answers for engineering and procurement teams.
What are AISI 201 stainless steel balls?
They are solid precision balls made from a chromium-manganese austenitic stainless steel with reduced nickel content, commonly selected for economical general industrial and hardware applications.
What is the difference between 201 and 304 stainless steel balls?
AISI 201 is generally more economical and offers useful mechanical properties, while AISI 304 normally provides better overall corrosion resistance. Selection should reflect the actual environment and approved specification.
Are 201 stainless steel balls magnetic?
Magnetic response can vary. Although AISI 201 is an austenitic stainless grade, cold working during ball production may increase magnetic response. Define measurable acceptance criteria when magnetism matters.
Are 201 stainless steel balls corrosion resistant?
They provide moderate corrosion resistance in suitable indoor and mildly exposed environments, but are not a substitute for AISI 304 or 316 in more corrosive service.
Can 201 stainless steel balls be used outdoors?
Outdoor use should be evaluated against moisture, chlorides, cleaning chemicals and expected service life. AISI 304, 316/316L or another validated grade may be preferable for sustained exposure.
What sizes of AISI 201 stainless steel balls are available?
SDBALLS supports diameters from approximately 1.0 to 50.8 mm, subject to grade, finish and production review.
What precision grades are available for SS201 balls?
Typical programs include G100, G200, G500 and G1000. Final grade and diameter tolerance must be confirmed against the approved drawing or RFQ.
Can SDBALLS supply metric and inch sizes?
Yes. Metric and inch sizes can be reviewed; provide the exact nominal diameter, tolerance and quantity in the inquiry.
Can AISI 201 balls be polished?
Ground, polished and high-gloss finishes can be reviewed according to appearance, surface condition and application requirements.
Is AISI 201 suitable for seawater?
AISI 201 is generally not the first choice for seawater or high-chloride service. Evaluate AISI 316/316L or another corrosion-resistant material for those environments.
Can I order samples or small quantities?
Sample, prototype and smaller industrial quantities can be reviewed according to available size, grade, finish and production route.
Can SDBALLS provide custom packaging for volume orders?
Yes. Precision bags, plastic containers, cartons, pails, steel drums, export pallets and OEM packaging can be reviewed without implying a fixed pack quantity.