Stellite 20/12 Valve Balls Wear and Corrosion Resistant Cobalt Chrome Tungsten Alloy Carbide Ball

• Customization: Available
• Certification: CCC, RoHS, ISO, CE
• Surface Treatment: Polishing, Sand Blast, Chrome Plating, Nickel Plating
• Temperature: High Temperature
• Pressure: High Pressure
• Material: Cobalt
• Type: Balls and Seat
• Performance: Wear, Corrosin and Thermal Resistance
• Surface Finish: Mirror
• Cast Process: Investment Cast, Metallurgic Powder
• Dimension: Customer′s Drawings
• Transport Package: Plywood Case
• Specification: Stellite 20
• Trademark: EB
• Origin: China
• Production Capacity: 500000pieces/Year
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 30.000kg

Product Description

1.Product Name:Stellite 20 Valve Balls 

2.Material Grade:Stellite 20

4.Process:Cast Process
5.What`s the Material of our Valve Seat ?

Here is the valve seat material we ever made for our customers ,you also can give your own material chemical composition or choose other material from our material list.

6.API Standard Cobalt Alloy Valve Seats and Valve Balls:

1. Valve balls and valve seats are widely used in oil fields.

2. Valve Ball and Seat performance directly affects the use effect and service life of the sucker rod pumps.
3. Each ball-and-seat combination is vacuum tested to ensure a perfect seal is obtained in all positions of contact.

7.Feature:

High precision, high hardness, wear resistance, corrosion resistance, bending resistance, and harsh environment can replace steel balls.

8..Chemical Composition:

Standard:

 

Type	Fluid, mm2	Dw, mm	D, mm	d mm	H, mm
V11-106	107	15.8750	20.142	11.68	12.70
V11-125	153	19.0500	23.317	13.97	12.70
V11-150	227	23.8125	29.667	17.02	12.70
V11-175	345	28.5750	35.255	20.96	12.70
V11-225	569	34.9250	43.688	26.92	12.70
V11-250	869	42.8625	51.054	33.27	12.70
V11-375	1623	57.1500	78.029	45.47	19,05

Chemical Composition:

Composition (%)

C

Si

Mn

Cr

Ni

S

P

Mo

W

Fe

Co

Hardness

Stellite 20 Balls

2.30-3.00

≤1.5

≤1.0

31.0-36.0

≤3.0

≤0.04

≤0.04

≤1.0

16.0-19.5

≤3.0

Bal.

HRC:52-60

Q: Are you trading company or manufacturer ? 
A: We are factory. 

Q: How long is your delivery time? 
A: Generally it is 5~10 days if the goods are in stock.Or it is 45 days if the goods are not in stock, it is according to quantity. 

Q: What is your terms of payment ? 
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shipment.
irrevocable LC at sight.