(86)0533-2927877
info@zbnaao.com
 
  1. Home > PRODUCTS > Tungsten Carbide Ball
Tungsten Carbide (WC) K30 Co Binder Alloy Balls
  • Tungsten Carbide (WC) K30 Co Binder Alloy Balls
  • Tungsten Carbide (WC) K30 Co Binder Alloy Balls

Tungsten Carbide (WC) K30 Co Binder Alloy Balls

TUNGSTEN CARBIDE (WC) K30 Co BINDER ALLOY BALLS K30 tungsten carbide balls provide a binder percentage slightly hig

TUNGSTEN CARBIDE (WC) K30 Co BINDER ALLOY BALLS

 

K30 tungsten carbide balls provide a binder percentage slightly higher than the standard balls (7-9%). They are available on demand. The mechanical properties and corrosion resistance are a little lower if compared to standard K20 balls. Virgin powder is strictly used into this kind of production.

 

Applications

Special and hydraulic precision valves, special bearings, couplers, flow meters, sprayers, recirculating balls, ball spindles, tooling machines, sliding rails, ballpoint pens, pin and tips for indicators, precision measurement instruments, medical instruments. They are used in naval, mining, petrol and coining industry.

 

Chemical Composition (%)

Type

WC

Co

WC30

91.00-93.00

7.00-9.00

 

International Standards

Type

ISO

USA

CHN

WC30

K30

C2

YG8

 

Physical / Mechanical / Thermal / Electric / Magnetic Properties

Property

Symbol

U.o.M.

Type

Notes

Values

Density

δ

g/cm3

Physical

Room temp.

14.70

Young's modulus

E

GPa

Mechanical

-

630

Specific heat

c

J/(kg·℃)

Thermal

Room temp.

227

Coefficient of linear thermal expansion

α

10-6/ºC

Thermal

(ΔT=0-100°C)

6.0

Thermal conductivity

λ

W/(m·K)

Thermal

Room temp.

82.0

Electric resistivity

ρ

Ω*m*10-9

Electric

-

175

Relative magnetic permeability

µ

-

Magnetic

Slighlty ferrom.

max 12

 

Technical Data

Property

Type

U.o.M.

Values

U.o.M.

Values

Grain size

Physical

µm

~1.2

-

-

Hardness

Mechanical

HRA

89.5-91

HV

1480-1700

Ultimate compressive strength

Mechanical

MPa

5400-5700

psi*103

784-826

Service temperature

Thermal

ºC

-196/ 500

ºF

-320.8/932


Range

Diameters

U.o.M.

Diameters

U.o.M.

Precision Grade (ISO 3290)

2.381- 127.000

mm

3/32 - 5

inch

G10 -......- G1000

 

Corrosion Resistance

As a general rule Tungsten Carbides with Cobalt binder show good corrosion resistance into basic solution while they are not resisting into acid solutions.