| Solid Stellite 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 |
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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 Seat accuracy | ≤ 0.025 mm | ≤ 0.005 mm (Ultra-High Precision) |
| Processing Seat Roundness | ≤ 0.025 mm | ≤ 0.011 mm (Micron-Level ) |
| 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 |
From Robust Substrate to Hardened Surface: Full-Process Wear Protection
We understand that an exceptional wear-resistant layer must be founded on a tough and strong base. Therefore, for applications subject to extreme mechanical loads, we strongly recommend using a Forged Steel valve seat as the substrate, with critical sealing surfaces fully overlaid or precision-embedded with Stellite alloy (Stellite valve Seats). The dense, homogeneous steel matrix resulting from the forging process provides the most solid support for the hard alloy layer, effectively preventing plastic deformation or cracking under extreme pressure, achieving the perfect marriage of toughness and hardness.
The Classic Choice: Stellite Grade 6
Stellite 6 Seats are the most classic and widely applied grade within this alloy family. They achieve an outstanding balance between wear resistance, toughness, and resistance to various wear modes (including cavitation), making them the preferred material for resisting abrasive and fretting wear in low to medium-high temperature ranges (up to approximately 800°C).
Comprehensive Wear Solution Coverage
Our Stellite alloy valve Seats (Stellite Seats) series can be selected based on the specific wear mechanism (e.g., pure abrasion, high-temperature wear, corrosive wear). Whether it's the classic Stellite 6 or another tailored grade, we ensure that their extraordinary hardness is precisely applied to the sealing surfaces most in need of protection, in the form of either Solid Stellite Seats or integral overlay.
Why Are Our Stellite Alloy Valve Seats the Ultimate Answer to Wear?
Engineering Material Selection for Wear Mechanisms
We provide more than just materials; we help analyze your wear type (abrasive, erosive, adhesive) to match the most suitable Stellite grade and application process.
Reliability Design Based on Forged Substrates
Our insistence on using Forged Steel as the substrate where needed is not an superfluous cost but a core engineering philosophy ensuring the overall structural integrity of the entire seat assembly under High pressure.
Advanced Overlay and Bonding Technology
We employ advanced processes like laser cladding and Plasma Transferred Arc (PTA) welding to ensure a metallurgical bond between the Stellite layer and the substrate, offering high bond strength and eliminating delamination risk.
Providing Certainty for the Harshest Wear Conditions
When wear is the primary cause of valve failure, upgrading to Solid Stellite valve Seats is the most direct and effective investment for extending maintenance intervals, reducing upkeep costs, and ensuring continuous production.
Where wear and pressure seek to erase all reliability, the hardness of Stellite alloy will stand as an indelible line of defense. Choose TongBall Valve, and let us defend the lasting seal of your critical processes with the ultimate hardness of materials.
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