Stellite21 Valve Balls

  • Brand: EB
  • Material Grade: Stellite 21
  • Production Process: Investment Process, Powder Process
  • U.W.:0.1 – 300kg/piece
  • Surface Finish: mirror


    ZAlCu10 High precision Alu Cast Parts EB9090

    Valve Balls

    What’s the stellite alloy?

     It is a range of cobalt-chromium alloys designed for wear resistance, heat resistance and corrosion resistance.

    What’s the material of your valve seats?

    It’s the CoCrW alloy, which is usually called stellite alloy.

    Materials of  Stellite190 valve balls – Cobalt Chrome Alloy:

    Excellent wear and corrosion resistance even at high temperature up to 800℃。

    Chemical compositions and properties (%)




    TOPS 202.2-3.0≤2.030-34≤3.0≤1.014-18Bal.≤3.0≤0.05≤0.058.6553-59
    API Standard Valve Seat &ball

    OD/ID×H (in)


    D (in)

    Stellite21 Valve Balls Product Features:

    1.Wear resistance: due mainly to the unique inherent characteristics of the hard carbide phase dispersed in a CoCr alloy matrix,

    it has exceptional wear and galling resistance.

    2.Corrosion resistance: this exellent and lovely property allows this kind of material parts to be used in oil&gas, slurry,

    acid liquid and any other mediums.

    3.High temperature resistance: the strength keeps stable up to 800℃ and it can even momentarily used at 1200℃.

    Stellite21 Valve Balls Application and Advantage:

    1. Valve balls and valve seats  are widely used  in pipeline valve.

    2. Valve Ball and Seat performance directly affects the use effect and service life of the pipeline valve.

    3. Each ball-and-seat combination is vacuum tested to ensure a perfect seal is obtained in all positions of contact.

    Standard for Cobalt Base Alloys Parts 
    STELLITE 1BAL332.45132.5*12.5*1
    STELLITE 3BAL312.5132.5*12.5*1
    STELLITE 4BAL31.51142.0*12.0*1
    STELLITE 6BAL281.253.0*12.5*1
    STELLITE 12BAL291.8592.5*12.5*1
    STELLITE 20BAL332.4517.52.5*12.5*1
    STELLITE 21BAL270.255.52.5*13.0*1
    STELLITE 31BAL260.57.510.512.0*1
    STELLITE 190BAL263.3141.018.00.5
    STELLITE 238BAL260.13120.01
    STELLITE 306BAL250.426.014.0*1Nb=5
    STELLITE 694BAL281195.012.5*1V=1
    STELLITE FBAL25.51.7512.2522.511.5*
    STELLITE SF1BAL191.3131332.53*0.5Cu=0.5
    STELLITE SF6BAL190.77132.51.73*0.5Cu=0.5
    STELLITE SF12BAL191913323*0.5Cu=0.5
    STELLITE SF20BAL191.51513332*0.5Cu=0.5
    TRIBALOY T400BAL80.1*283*2.43*
    TRIBALOY T800BAL170.1*283*3.23*
    DELORO 150.06*BAL2.01.051.5*20Cu=20
    DELORO 220.700.10BAL2.31.75
    DELORO 407.00.10BAL3.52.25
    DELORO 5010.250.45BAL4.01.854.0
    DELORO 6014.250.6BAL2.03.54.0
    DELORO 625220.19BAL5
    NISTELLE C16.50.12*4.517BAL0.76.0
    TRIBALOY T700150.10*32BAL3.25
    Our Photos for Stellite21 Valve Balls

    S21 Valve Balls

    Our Experience
    • 13 Year Experience in Heat-resistant Steel Field
    • 18 Year Expertise in Wear-resistant Material Field
    • 20 Year Customer-made High Quality Castings & Forgings
    Trading Terms:
    1. The nearest seaport: Shanghai port
    2. The nearest airport: Shanghai Pudong airport
    3. Payment Terms:L/C,TT,West Union,Paypal
    4. Payment Condition:50% before production, 50% before delivery against complete set of inspection report
    5. Supply Capability:  10,000 tons per year
    6. Sample Availability: yes
    7. Sample Time:15-30 Days
    8. Packing: Plywood Cases or Steel Crates
    9. Delivery time: 45 working days per 20 tons regular castings & forgings
    10. Service: OEM, ODM or Customized

    ZAlCu10 High precision Alu Cast Parts EB9090

    1. 20-year Foundry Operation Experience.
    2. Friendly & High Efficient Technical & Commercial Communication.
    3. Professional Export Practices: Exported to +60 Overseas Countries.