| Monel valve Balls | ||
| Size Range | 1/2" to 56" (Custom sizes available) | |
| Pressure Rating | PN10-PN420 (Class150-2500) | |
| Body Material | A105, A350 LF2, A182 F304, A182 F316, A182 F321, A182 F51, A182 F53, A182 F55, A182 F60, A182 F44, A564 630 (17-4PH) INCONEL625, INCONEL718, INCONEL825, Monel 400, Monel 500 etc |
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| Core Process/Coating | ENP,HCR,STL6, STL12, STL20,Cr3C2, WC-Co, WC-Cr3C2-Ni, TiC-NiMo, SiC, CrC,ZrO2, Al2O3, Cr2O3, ZnO, TiO, Al2O3-TiO2,STL1, STL6, STL12,Ni60, Ni55, Ni45 etc. | |
| Operating Temperature Range | ≤1200°C | |
| Parameter Category | Core Technical Parameters | Standards for Determining Advanced Technological Level |
| Machining ball accuracy | ≤ 0.025 mm | ≤ 0.005 mm (Ultra-High Precision) |
| Processing ball Roundness | ≤ 0.025 mm | ≤ 0.011 mm (Micron-Level ) |
| Balls concentricity | ≤ 0.025 mm | ≤ 0.005 mm (Ultra-High Precision) |
| Other supplements | ≤ 0.4 μm | ≤ 0.1 μm (Mirror-Level) |
| Parameter Category | Core Technical Parameters | Criteria for High-End Technical Level |
| Coating Thickness Control | Thickness Uniformity | Thickness deviation at any spherical position ≤±8% (stricter than the general ±10% standard) |
| Thickness Tolerance Range | 100 - 300 μm (common range for wear-resistant layers); special ranges can be noted. No missed spraying for ultra-thin coatings (<10μm) | |
| Coating Adhesion Performance | Surface Hardness | HV 1300+ |
| Bond StrengthBond Strength | ≥80 MPa | |
| Interface PorosityInterface Porosity | <0.5% | |
| Coating Surface Quality | Surface Roughness (Ra) | ≤0.2 µm |
| Spraying Accuracy (Positioning & Coverage) | Spraying Positioning Accuracy | ±0.1mm |
Products Description
We do not pursue universal materials but focus on "special forces" that excel in specific battlefields. Our product matrix is built around corrosion-resistant alloys, extending the performance boundaries of Solid valve Balls beyond conventional stainless steels.
Monel Alloys: The Champions in Seawater & Hydrofluoric Acid
Monel valve Balls are renowned for their unique composition of high nickel (~67%) and high copper (~30%). We offer two primary types:
Monel balls / M400 valve Balls: As a non-heat-treatable wrought alloy, Monel 400 exhibits exceptional corrosion resistance in seawater, salt spray, hydrofluoric and sulfuric acids, and alkaline media. It is the preferred core for critical valves in offshore platforms, shipboard systems, salt chemical industries, and hydrofluoric acid production/handling equipment.
K500 valve Balls: Based on Monel 400 with added aluminum and titanium, it undergoes age-hardening. While maintaining excellent corrosion resistance, it achieves mechanical properties close to high-strength steels (hardness up to HRC 35). Suitable for applications requiring higher strength, wear, and galling resistance, such as deep-well oil extraction and high-load pump valves.
Alloy 20: The Upgraded Solution for Sulfuric Acid Resistance
Alloy 20 valve balls (typically Alloy 20Cb-3) is a nickel-chromium-iron alloy with additions of molybdenum and copper, stabilized with niobium. It offers outstanding resistance to hot sulfuric and phosphoric acids, as well as numerous mixed acid environments containing chlorides and sulfates, particularly resisting pitting and stress corrosion cracking. When 316L stainless steel is inadequate in sulfuric acid environments, Alloy 20 valve balls are the ideal upgrade for chemical, pharmaceutical, and food acid processing industries.
Tailored for Extreme Chemical Environments
Our manufacturing process fully considers the machining characteristics of these specialty alloys. Whether dealing with the gummy nature of Monel balls or the work-hardening tendency of Alloy 20 valve balls, we overcome these challenges with customized tooling, coolants, and process parameters, ensuring the final Specialty Alloy Valve Balls possess precise geometry and excellent surface finish.
Technical Focus: Precisely Matching Media Chemistry with Alloy Properties
Media Analysis & Alloy Selection Database:
We have established a selection database based on corrosion failure cases, enabling us to quickly recommend the most suitable alloy material (e.g., Monel 400 vs. Alloy 20) based on the client's provided media composition, concentration, temperature, and pH.
Heat Treatment for Guaranteed Corrosion Resistance:
For K500 valve Balls, we perform precise age-hardening to ensure uniform precipitation of aluminum/titanium strengthening phases, achieving high strength without compromising inherent corrosion resistance.
Intergranular Corrosion Protection:
For Alloy 20 valve balls, we strictly control stabilization heat treatment to ensure niobium fully combines with carbon, effectively preventing the risk of intergranular corrosion due to chromium carbide precipitation in the sensitization temperature range.
Why Choose TongBall's Specialty Alloy Solution for Specific Corrosive Service?
Experts in Specific Media Corrosion:
We do not generalize about corrosion resistance but delve into the corrosion mechanisms and long-term behavior of materials in specific chemical media (e.g., HF acid, hot H2SO4, seawater).
Providing Precise Choices from Monel to Alloy 20:
We assist clients in making the most economical and reliable technical decisions between specialty alloys with similar performance but different costs (e.g., Monel K500 vs. Alloy 20).
Process Serves Performance:
Our machining and heat treatment processes are designed entirely around the core objective of "maximizing the retention and utilization of the alloy's designed corrosion resistance," not simply applying generic procedures.
Is Your System Facing Challenges from Seawater Erosion, Hydrofluoric Acid Attack, or Concentrated Sulfuric Acid Corrosion?
When standard stainless-steel solutions fail, material selection becomes a professional decision requiring precise calculation. TongBall's Monel valve Balls and Alloy 20 valve balls series are designed to provide you with targeted, time-tested core component solutions.
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