304 / 316 STAINLESS / LIGHTWEIGHT FABRICATED SPHERES

Stainless Steel Hollow Balls

Lightweight, corrosion-resistant hollow stainless spheres for floats, level control, valve systems, architecture, calibration and custom fabrication.

Request a Quote ↗Contact SDBALLS U.S.

Stainless Steel Hollow Balls supplied by SDBALLS — PRODUCT REFERENCE / FINAL SPECIFICATION BY QUOTATION

PRODUCT OVERVIEW

What are stainless steel hollow balls?

Stainless steel hollow balls are formed or fabricated spheres with a controlled wall thickness and welded or closed construction. They provide a metallic surface and corrosion resistance at substantially lower mass than a solid steel ball.

Buoyancy and pressure performance depend on diameter, wall, weld, alloy, internal pressure and test method. Decorative hollow balls and engineered float balls require different acceptance criteria.

TECHNICAL SPECIFICATIONS

Start with measurable requirements.

Values below are product-family references. The quotation, drawing, agreed standard and inspection plan control the final supply specification.

Technical itemReference specification

MaterialAISI 304 / 304L / 316 / 316L stainless steel; other metals by project

Diameter Range15–1000 mm reference range

Precision GradeCommercial, float, architectural or drawing-specific geometry

ToleranceControlled by the agreed precision grade, drawing or purchase specification

HardnessMaterial-dependent

DensityMaterial-grade dependent; confirm before quotation

Surface FinishMill, brushed, satin, polished, mirror or coated

Roundness / SphericityControlled according to the agreed precision grade and inspection method

Temperature ResistanceApplication, load, atmosphere and material-grade dependent

Chemical ResistanceConfirm exact fluid, concentration, temperature and exposure time

PackagingBulk, small-quantity, container, bag, carton, export pallet or customized packing

Wall thicknessApprox. 0.4–5 mm; diameter and process dependent

ConstructionFormed hemispheres, welded sphere, spun or custom fabricated

Leak testingBubble, pressure, vacuum or customer-defined method by agreement

Load ratingEngineering calculation and validation required; not inferred from diameter alone

Special optionsBosses, stems, threads, holes, ballast, venting and custom welds

PRODUCT SELECTION GUIDANCE

Compare materials before substituting.

Material selection affects load, wear, corrosion, temperature, precision, service life and total program cost.

Material optionPrimary advantageLimitationBest fit

Hollow stainlessLightweight metal, heat capable and corrosion resistantWeld and wall control require engineeringFloats, architecture and valve systems

Solid stainlessHigh load capacity and precisionMuch heavier and more expensive at large diameterBearings and solid mechanical contact

Plastic float ballVery low mass and chemical optionsLower temperature, stiffness and metallic durabilityLight-duty level control

Hollow aluminumEven lower massLower hardness and different corrosion behaviorAerospace and decorative work

KEY PERFORMANCE FEATURES

Performance that purchasing teams can verify.

Low mass at large diameter

Hollow construction provides visual or buoyant volume without solid-ball weight.

Corrosion-resistant surface

304 and 316 families support atmospheric, water and process applications after review.

Custom fabrication

Wall, weld, bosses, stems and finish can be tailored to the drawing.

Testable integrity

Leak, pressure and dimensional inspection can be defined around the function.

TYPICAL APPLICATIONS

Specify the work the ball must perform.

Application names are starting points—not approval of universal suitability. Share the real medium, load, speed, pressure, temperature, life target and compliance needs.

Float valves & level control

Buoyant spheres with stems or mechanisms for tanks and process vessels.

Valve & transfer systems

Lightweight closure, transfer and cleaning elements.

Architecture & public art

Mirror, satin and custom-finished spheres for visual installations.

Calibration & robotics

Large reference targets, low-mass structures and custom assemblies.

Typical applications for Stainless Steel Hollow Balls — REPRESENTATIVE APPLICATION ENVIRONMENTS

QUALITY & DOCUMENTATION

Build the evidence into the purchase order.

Document requirements should be defined before quotation so the inspection method, sampling level, traceability and external testing can be planned correctly.

Material identity or alloy / ceramic grade verified against the agreed purchase specification
Diameter, tolerance and geometry inspected using the method appropriate to the ordered precision level
Hardness, density, wall thickness or coating hardness tested when applicable to the product
Surface condition, finish and visual limits checked against approved samples or drawings
Roundness / sphericity or roller geometry inspected when specified
Lot identification and batch traceability maintained through controlled records
Material certificates and inspection reports available when agreed before quotation
Third-party testing, compliance documents and customer inspection plans supported by agreement

PACKAGING OPTIONS

Protect precision through delivery.

Final packing depends on material, diameter, surface sensitivity, order weight, storage time and destination.

Drawing-controlled identification

Part number, revision, material, lot and inspection status labeled as agreed.

Separated protective packing

Trays, cells or partitions protect machined surfaces, coatings and special geometry.

Small-quantity containers

Prototype and service quantities packed for practical North American receiving.

Export & OEM packing

Cartons, crates, pallets, customer labels and documentation coordinated by project.

Supported formats: bulk packaging · small-quantity packaging · plastic containers · bags · cartons · export pallets · customized packaging.

SMALL QUANTITY & SAMPLE ORDERS

Validate before you scale.

SDBALLS Industry Corp. supports North American customers with sample quantities, prototype requirements, testing programs and specialty ball inquiries.

Send diameter, alloy, wall, weld, buoyancy or pressure target, surface, features and quantity. Prototype testing should duplicate the intended fluid and pressure condition.

PrototypeTestingRepairR&DSmall batch production

Request Samples ↗Contact U.S. Support

PRODUCT FAQ

Answers for engineering and purchasing teams.

What wall thickness is available?

A reference range is 0.4–5 mm, but availability depends on diameter, material, forming method, weld and load requirement.

Are hollow balls pressure rated?

Only when designed and tested for a defined pressure, temperature and safety factor. Decorative spheres are not automatically pressure components.

Can you add a stem, thread or boss?

Yes. Welded, brazed or machined features can be reviewed from a drawing with load and leak requirements.

Which stainless grade is best for floats?

304 suits many general environments; 316/316L is often considered for stronger chloride and process-fluid resistance. Exact compatibility must be checked.

Can you provide material certificates and inspection reports?

Yes. State the required certificate, inspection method, sampling plan and report format before quotation so documentation can be included in the supply plan.

Do you support samples and small-quantity orders?

Yes. SDBALLS Industry Corp. supports North American prototype, qualification, repair, R&D and small-batch requirements, subject to material, size and production availability.

CONTACT SDBALLS U.S.

Bring us the application and requirement.

Include product, material, size or shot size, grade, hardness, finish, quantity, packaging, application and required documentation for a faster quotation.

SDBALLS Industry Corp.Email: info@sdballs.usWhatsApp: +1 424 351 5470Website: www.sdballs.usNorth American Business Support