| XM-19 Steel Valve Stems | ||
| 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 |
Core Product: Engineered for Extreme Performance
Our range of XM-19 Valve Stems is designed and manufactured to meet the most demanding performance specifications.
Superior Strength Meets Corrosion Resistance: Strengthened by nitrogen, XM-19 valve stems deliver high mechanical strength and outstanding resistance to stress corrosion cracking in aggressive media. They are a reliable choice for high-pressure valve designs where increased stem diameter is not feasible, offering enhanced resistance to bending and buckling.
Stable Performance Across a Wide Temperature Range: This material maintains excellent toughness from cryogenic to moderately elevated temperatures. Our Stainless Steel valve stems in XM-19 are well-suited for systems with significant thermal cycling, such as LNG facilities and high-temperature process lines.
Forged for Ultimate Integrity: For safety-critical applications in nuclear or subsea environments, we offer Forged Steel valve stems made from XM-19 billet. The forging process refines the grain structure, enhances directional strength, and eliminates internal defects, delivering the highest level of reliability and fatigue resistance.
Comprehensive Technical Support
We provide precise technical support for selection, maintenance, and upgrades throughout the component lifecycle.
Expert Selection Guidance
Our engineers assist in selecting or customizing XM-19 valve stems based on your specific pressure, temperature, and media conditions, ensuring the optimal fit for your application.
Matched Maintenance Solutions
We can supply maintenance components compatible with the stem's performance, ensuring full system capability is restored during services such as valve seat replacement.
Installation & Maintenance Protocols
We provide complete technical documentation and installation specifications to ensure that high-performance stems meet design expectations after maintenance or replacement.
Why Choose TongBall?
Expert in Advanced Materials
We specialize in the machining and processing of specialty alloys like XM-19, ensuring finished products retain their enhanced properties.
High Strength Without Magnetism
XM-19 valve stems combine high strength with complete non-magnetic properties, making them suitable for equipment sensitive to magnetic interference.
Forged Reliability
Our Forged Steel valve stems offer the highest assurance of quality for the most demanding applications.
Proven in Frontier Industries
Our components are trusted in fields where absolute reliability is non-negotiable.
When valve operation must remain steadfast under extreme pressure, corrosion, and temperature, the stem material is a critical safeguard. XM-19 Specialty Stainless Steel defines a new standard with its exceptional combination of properties.
Choosing TongBall means selecting a solid foundation for your most critical systems. Our XM-19 Valve Stems and Forged Steel valve stems solutions are dedicated to safeguarding the reliability and safety of your vital processes through superior material science and precision manufacturing.
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