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Choke bean is often used in the positive choke valve for controlling the flow. Zonco choke bean is same as Cameron type H2 big john choke bean, body Material: 410SS, lined with Tungsten Carbide (YG8), to protect them from corrosive and abrasive wear.
On one side of the choke manifold, calibrated choke beans are used to control flow rate through the fixed choke box. Each bean is a specific diameter, usually in graduations of 1/64-1/32 inch, Depending on the type of equipment used, the size of the choke bean can be as large as 3 inches. The choke Bean in all standard API-6A available sizes.
1. Heat resistant; very good wear resistant
2. HIP sintering, High hardness.
3. Good impact toughness, chemical stability.
4. Excellent performance and good wear/corrosion resistance
5. High machining accuracy/precision
Zonco has been specialized in customizing various kinds of non-standard tungsten carbide wear resistant components for more than 10 years.Our products and technologies have been widely applied in the fields of oil & gas, chemical engineering, subsea, nuclear power and aerospace industries. Mainly used in harsh operating conditions include severe abrasion, erosion, corrosion, high temperature, high pressure and strong impact. we are able to manufacturing all kinds of wear resistance valve parts based on customer's drawing and material requirement, support hardfacing process based on customer's technique requirement. since most of our products are customized and not suitable to show for other customer, welcome to contact us for OEM service.
2. Competitive prices with 10-30% saved or more.
Zonco Common Tungsten Carbide Grades, Ghysical Mechanical Properties:
| Grade | WC% | Co% | Grain size (μm) | |||
| Density (g/cm3) | TRS (N/mm2) | Hardness (HRA) | ||||
| YG06X | 94 | 6 | 14.8-15.1 | 2400 | 91.5 | 0.8-1.2 |
| YG06A | 94 | 6 | 14.8-15.1 | 2150 | 92.5 | 0.6-0.8 |
| YG08 | 92 | 8 | 14.6-14.9 | 2700 | 89 | 1.2-1.6 |
| YG10.2 | 90 | 10 | 14.3-14.6 | 3800 | 91.7 | 0.7 |
| YG11 | 89 | 11 | 14.3-14.7 | 2800 | 88.5 | 1.2-1.6 |
| YG12X | 88 | 12 | 14.2-14.5 | 3000 | 89.5 | 1.0-1.2 |
| YG15 | 85 | 15 | 13.8-14.2 | 3000 | 86.5 | 1.2-1.6 |
| YG20 | 80 | 20 | 13.4-13.8 | 3100 | 85 | 1.2-1.6 |
2. Nickel Binder Grades
| Grade | WC% | Ni% | Physical and mechanical properties | Grain size (μm) | ||
| Density (g/cm3) | TRS (N/mm2) | Hardness (HRA) | ||||
| YN6 | 94 | 6 | 14.5-14.9 | 2000 | 90 | 1.2-1.6 |
| YN9 | 91 | 9 | 14.3-14.6 | 2300 | 89 | 1.2-1.6 |
| YN11 | 89 | 11 | 14.0-14.3 | 2600 | 88 | 1.2-1.6 |
Our material engineers have developed more than 15 material grades. If the listed grades above are not meet your requirement,
we are able to recommend or develop new grade by customers' requirements.
Main Products Types:
1.Radial Thrust Bearing (PDC,TC Bearing)
2.Tungsten Carbide Nozzles
3.Valve Trim (Plug,Seats,Stem, choke bean,bushing,Cage,sleeve)
4.MWD & LWD Carbide Parts (Sator and rotor for motor)
5.Carbide Parts for Downhole Tools ( Osc Valve and Stationary Valve parts)
6.Carbide Wear Parts for Mechanical Equipments
7.Carbide Drilling Dies
8.Carbide Buttons/Inserts
9.Other Carbide Wear Parts
Zonco Customized Valve Trim According To The Specific Drawing(Valve Stem/plug and seats)
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