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High Precision Tungsten Steel Set Carbide Valve Core Valve Sleeve
Product Usage: Pneumatic Hydraulic Equipment
Product Application: Sliding in Clearance
Tungsten steel, prepared using powder metallurgy, boasts
characteristics like high strength, hardness, wear resistance,
corrosion resistance, high-temperature resistance, and minimal
linear expansion coefficient. Its exceptional physical stability,
especially in wear resistance, stands out prominently. Widely
employed in precision equipment requiring wear-resistant parts,
tungsten steel's precision machining capability ensures longevity.
The precision-machined tungsten steel valve core and valve sleeve
are custom-manufactured based on design blueprints from the
Hydraulic and Pneumatic Center at Huazhong University of Science
and Technology. The specifications are as follows:
1,Tungsten Steel Valve Core:
Φ18-8*13.873*13.873-2*Φ12-19*Φ6-18*M3*27
2,Tungsten Steel Valve Sleeve: Φ20*Φ18*1.2-1.2-8-45°*0.5-20°*8
For the Φ18 tungsten steel valve core, the outer diameter tolerance
is -0.001,-0.002, with a roundness requirement of 0.001. A precise
grinding match ensures a clearance fit of 0.003-0.005 between the
larger cylindrical surface and the valve sleeve. The symmetry
requirement is 0.008, with tolerances of +0.006,-0.017 for the Φ12
head and +0.028,+0.010 for the Φ6 inner hole, and a coaxiality of
0.008. For the Φ20 tungsten steel valve core, the outer diameter
tolerance is -0.020,-0.041, while the inner hole Φ18 tolerance is
+0.003,+0.002. The valve sleeve's inner surface matches the valve
core, with eight 1.2*1.2 rectangular windows at a tolerance of
±0.005, evenly distributed. The angle tolerance is 45°±0.02°, with
a roundness requirement of 0.001 and a coaxiality requirement of
0.005 for both the Φ18 inner hole and Φ20 valve core.
We offer a variety of options for tungsten steel machining hard
alloy materials. Common physical parameters include:
Property | Range |
Grain Size (μm) | 0.4-2.0 |
Cobalt Content (% Co) | 6-20 |
Density (g/cm³) | 13.96-14.85 |
Hardness (HRA) | 86-93 |
Flexural Strength (MPa) | 3200-4500 |
Young's Modulus (GPa) | 570-620 |
About us:
Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd, is engaged
in R&D of cemented carbide raw material, processing, selling
and aftermarket services.
Sanxin dedicated in inheriting tungsten carbide OEM services and
improvement solutions, has a specialized technical team as a solid
foundation and obvious superiority to manufacture high-quality
tungsten carbide product.
Sanxin was established in 2003; Two main factories were built in
2007; Passed ISO 9001:2015 in 2017; High-tech Enterprise Identified
in 2017; Obtained foreign trading license 2017; Confirmed as
supplier of CLEP in 2021; Owned more than 20 patent certificates.
We always carry out "quality and customer first", "Samples
available", "punctual delivery", "mutual benefit", "focus on
innovation", "service creates value"…business policy in the market.
Sanxin delivering carbide value.