SS Solid Balls
What are SS Solid Balls?
SS Solid Balls are precision-engineered spherical components made from high-grade stainless steel, designed for use in various industrial and mechanical applications requiring strength, smoothness, and corrosion resistance. They are commonly used in valve systems, bearings, grinding applications, and precision instruments.
Asiad Steel Industries is a trusted manufacturer and supplier of SS Solid Balls in a wide range of diameters and grades, including SS 304, SS 316, SS 420, and SS 440C. Our solid balls are produced with tight dimensional tolerances and mirror-finish surfaces.
Key Features
High
Strength
Durable
Construction
Precision
Finish
Wide
Compatibility
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Ball Diameter | 1 mm to 200 mm (custom sizes available) |
| Pressure Ratings | ANSI / ASME Class | Class 150, 300, 600, 900, 1500, 2500 (if used in valve/industrial applications) |
| PN Ratings | PN6, PN10, PN16, PN25, PN40, PN64 | – |
| Types | SS Solid Balls | Precision Balls, Bearing Balls, Grinding Balls |
| Material Options | Stainless Steel | SS 304, SS 304L, SS 316, SS 316L, SS 321 |
| Carbon Steel | ASTM A36, ASTM A500 (if required for specific applications) | |
| Alloy / Superalloy | Alloy Steel (A234 WP1, WP5, WP9, WP11, WP22, WP91), Inconel 600/625/825 | |
| Duplex & Super Duplex | Duplex 2205, Super Duplex 2507 | |
| Other Materials | Monel 400/K500, Nickel 200/201, Titanium (Grade 2, Grade 5) | |
| Standards & Certifications | ASME / ANSI | ASME B18.11, ASME B46.1 (surface finish) |
| ASTM | ASTM A276, ASTM A182 | |
| European Standards | EN 10278, EN 10088 | |
| Certifications | ISO 9001, PED 2014/68/EU, NACE MR0175, IBR Approved | |
| Design Features | Diameter Tolerance | As per ASTM / ISO standards, high precision grades available |
| Roundness | 0.1 µm to 10 µm deviation (grade-dependent) | |
| Surface Finish | Ra 0.1 – 0.4 µm, polished, matt, or passivated | |
| Coating & Surface Finish | Anti-Corrosion Coating | Rust Preventive Oil, Passivation |
| Optional Coatings | Epoxy, PTFE, Polyurethane (if required) | |
| Surface Finish | Polished, Matt, Passivated | |
| Testing & Inspection | Dimensional Testing | Micrometer, CMM, Laser measurement |
| Non-Destructive Testing | Visual Inspection, Dye Penetrant Test (DPT), Magnetic Particle Inspection (MPI) | |
| Destructive Testing | Hardness, Tensile, Impact (for alloy or custom balls) | |
| Applications | Typical Usage | Bearings, Valve Balls, Grinding Media, Precision Instruments, Aerospace, Automotive |
Dimensions
| Diameter Range (mm) | Tolerance (mm) | Roundness (µm) | Hardness (HB) | Material Grades | Surface Finish | Weight per Ball (g) |
|---|---|---|---|---|---|---|
| 1 – 3 | ±0.01 | 1 – 3 | 160 – 190 | SS 304, SS 316 | Polished / Matt | 0.004 – 0.07 |
| 3 – 6 | ±0.02 | 1 – 4 | 160 – 190 | SS 304, SS 316, SS 321 | Polished / Matt | 0.07 – 0.28 |
| 6 – 10 | ±0.02 | 2 – 5 | 170 – 200 | SS 304, SS 316, SS 321 | Polished / Matt | 0.28 – 0.52 |
| 10 – 15 | ±0.03 | 2 – 5 | 170 – 200 | SS 304, SS 316 | Polished / Matt | 0.52 – 1.77 |
| 15 – 25 | ±0.03 | 3 – 6 | 180 – 210 | SS 304, SS 316, SS 321 | Polished / Matt | 1.77 – 8.18 |
| 25 – 40 | ±0.05 | 3 – 8 | 180 – 210 | SS 304, SS 316 | Polished / Matt | 8.18 – 33.5 |
| 40 – 50 | ±0.05 | 4 – 10 | 180 – 220 | SS 304, SS 316, SS 321 | Polished / Matt | 33.5 – 65.4 |
| 50 – 100 | ±0.1 | 5 – 15 | 200 – 220 | SS 316, SS 321 | Polished / Matt | 65.4 – 523.6 |
| 100 – 150 | ±0.1 | 5 – 20 | 200 – 220 | SS 316, SS 321 | Polished / Matt | 523.6 – 1767 |
| 150 – 200 | ±0.15 | 10 – 25 | 200 – 220 | SS 316 | Polished / Matt | 1767 – 4188 |
| 200 – 250 | ±0.2 | 10 – 30 | 200 – 220 | SS 316 | Polished / Matt | 4188 – 8170 |
| 250 – 500 | ±0.3 | 15 – 40 | 200 – 220 | SS 316 | Polished / Matt | 8170 – 65495 |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 485 – 750 | MPa (Carbon Steel, Stainless Steel, Alloy Steel) |
| Yield Strength | 170 – 450 | MPa |
| Hardness | 120 – 220 | HB (Brinell), depending on grade |
| Elongation | ≥ 20 – 30 | % |
| Density | 7.8 – 8.0 | g/cm³ |
| Impact Toughness | ≥ 27 – 70 | J (Charpy, grade-dependent) |
| Modulus of Elasticity (E) | ~200 | GPa |
| Fatigue Strength | 250 – 450 | MPa |
| Corrosion Resistance | Good to Excellent | (SS > CS > Alloy Steel) |
| Thermal Conductivity | 15 – 50 | W/m·K |
| Coefficient of Thermal Expansion | 11 – 17 ×10⁻⁶ | /°C |
| Yield Ratio (YS/UTS) | 0.40 – 0.65 | – |
| Poisson’s Ratio | 0.27 – 0.30 | – |
| Surface Finish | Polished / Matt / Passivated | – |
| Operating Temperature Range | -46 to 600 | °C (material-dependent) |
| Roundness Tolerance | 0.1 – 10 | µm deviation (grade-dependent) |
| Diameter Tolerance | ±0.01 – 0.1 | mm (grade-dependent) |
| Hardness Range | 120 – 220 | HB |
| Typical Applications | Bearings, Valve Balls, Grinding Media, Precision Instruments, Aerospace, Automotive | – |
Chemical Composition
| Element | SS 304 (%) | SS 316 (%) | SS 440C (%) |
|---|---|---|---|
| Carbon (C) | ≤ 0.08 | ≤ 0.08 | 0.95 – 1.20 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 |
| Chromium (Cr) | 18.0 – 20.0 | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel (Ni) | 8.0 – 10.5 | 10.0 – 14.0 | ≤ 0.75 |
| Molybdenum (Mo) | — | 2.0 – 3.0 | — |
| Iron (Fe) | Balance | Balance | Balance |
Applications of SS Solid Balls
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What is the difference between SS 304 and SS 440C solid balls?
re stainless steel solid balls rustproof?
Can these be used in food and pharma industries?
Do you provide custom sizes and tolerances?
