| Hastelloy Overlaid Valve Seats | ||
| 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 |
|
| 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 Seat accuracy | ≤ 0.025 mm | ≤ 0.005 mm (Ultra-High Precision) |
| Processing Seat Roundness | ≤ 0.025 mm | ≤ 0.011 mm (Micron-Level ) |
| Seatsconcentricity | ≤ 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 |
Overlay Technology: Precisely "Inlaying" Premium Corrosion-Resistant Alloy Where It Matters Most
To address each customer's unique corrosion challenges, we offer highly Custom valve seats services, with Hastelloy overlaying being a key process for achieving customized high performance.
The Pinnacle of Corrosion Resistance: Hastelloy C-276
Among these, Hastelloy C276 overlaid valve seats are the industry benchmark for handling complex reducing corrosive media. They are nearly immune to chloride-induced stress corrosion cracking and demonstrate exceptional stability in various strong acids like sulfuric and hydrochloric acids, as well as chlorine-containing environments. This Corrosion-proof Hastelloy overlaid valve seats characteristic makes them a core component for extending equipment run times and eliminating leakage risks in many severe corrosion processes.
Perfect Balance of Economic Sense and Top-Tier Performance
Using Hastelloy as a solid material is cost-prohibitive. Our overlay technology enables intelligent cost allocation: the seat body can be made from economical materials meeting the pressure rating, while only the sealing surface in direct contact with the aggressive media is metallurgically bonded with a layer of Hastelloy via advanced Plasma Transferred Arc (PTA) cladding. This ensures surface corrosion resistance comparable to a solid Hastelloy seat at a highly competitive cost.
Customization Capability for Complex Chemical Environments
Different acid concentrations, temperatures, and impurity ions impose subtle yet stringent demands on materials. Our engineering team can customize the optimal overlay alloy solution (e.g., C-276, C-22) and design the ideal cladding thickness and structure based on your specific operating parameters. This ensures your Custom valve seats are "tailor-made" for your process, not merely an off-the-shelf product.
Why Choose TongBall's Hastelloy Overlaid Valve Seats?
Confronting the Most Severe Corrosion Challenges
We specialize in solving the "aqua regia-level" strong corrosion services that rapidly defeat ordinary stainless and duplex steels, offering globally proven Hastelloy solutions.
Significant Lifecycle Cost Advantage
Compared to the production losses and maintenance costs associated with frequent replacement of ordinary seats, investing in long-lasting Hastelloy overlaid seats is a more economical and reliable choice.
Impeccable Overlay Quality
We maintain strict control over the cladding process, ensuring the Hastelloy layer is dense, uniform, firmly bonded to the substrate with low dilution, thereby fully preserving the alloy's inherent top-tier corrosion resistance.
End-to-End Support from Analysis to Validation
We provide material selection advice, corrosion test data under simulated conditions, and support prototype testing and validation to help you make confident decisions.
When your process relies on the strict control of highly corrosive media, the sealing integrity of your valves is paramount. TongBall's Hastelloy Overlaid Valve Seats, with their precise strategy of "localized premium reinforcement," construct a robust, economical, and durable ultimate line of defense for your operations on the corrosive battleground.
Hot Tags: hastelloy overlaid valve seats, China hastelloy overlaid valve seats manufacturers, factory, 316L stainless steel overlaid valve seats, Colmonoy Overlaid Valve Seats, Colmonoy overlaid valve seats for mining, Hastelloy C276 overlaid valve seats, Inconel Overlaid Seats, Stellite Overlaid Valve Seats
