Stellite 21 Chrome Steel Balls Valve Seats

  • Brand: EB
  • Material Grade: Stellite 21






Description

ZAlCu10 High precision Alu Cast Parts EB9090

Stellite 21 Chrome Steel Balls Valve Seats

  • We produce high temperature Superalloy Cobalt Valve Seats and Valve Balls with high precision.
  • Cobalt alloy valve balls and seats are produced with cast and metallurgic powder process.
  • Stellite21 high wear Co balls and seats are used for oil and gas industries.

Stellite 21 Chrome Steel Balls Valve Seats is made from is a hard alloy ,that can withstand various types of abrasion ,

and corrosion as well as high temperature oxidation.The cobalt-base alloy was invented by American Elwood Hayness in 1907.

The Stellite alloy has major component of cobalt, containing a considerable amount of nickel, chromium,

tungsten and a small amount of molybdenum, niobium, tantalum, titanium, lanthanum, etc..Occasionally it contains an alloy of iron.

According to the composition of the alloy, they can be made into wire, powder for hard surface surfacing, thermal spraying, spray welding,

etc.. It also can be made into cast forging parts and powder metallurgy parts.

Chemical compositions and properties (%)
BrandCSiCrNiMoWCoFePSDensity

(g/cm3)

Hardness

(HRC)

TOPS

21

2.2-3.0≤2.030-34≤3.0≤1.014-18Bal.≤3.0≤0.05≤0.058.6553-59
Stellite 21 Chrome Steel Balls Valve Seats 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.

Our Photos for Stellite 21 Chrome Steel Balls Valve Seats:

Stellite 21 Chrome Steel Balls Valve Seats

Standard for Stellite 21 Chrome Steel Balls Valve Seats:
Valve SeatsCoCrCWMoNiSiBFeMnOthers
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 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.