The following is a reference guide of our most commons materials and their special characteristicss for hardness, corrosion resistance, magnetic strenght and various applications.
For critical applications, please contact your local representative.

METALS MATERIAL

COMMON USES

HARDNESS

RESISTANCE TO CORROSION

MAGNETIC

SPECIAL COMMENTS

52100

  • Bearings
  • Grinding Media
  • Switches

60-67 HRc
Thru-Hardened

None

High

  • High load
  • Excellent surface duality

440CSS

  • Bearings
  • Grinding Media
  • Valves / Pumps
  • Watering Devices
  • Ball Transfer

58-65 HRc
Thru-Hardened

Good

High

420SS

  • Bearings
  • Grinding Media
  • Valves / Pumps
  • Watering Devices
  • Ball Transfer

52 Min. HRc
Thru-Hardened

Good

High

  • Less expensive than 440C

302SS/304SS

  • Grinding Media
  • Finger Pumps
  • Valves / Pumps
  • Watering Devices
  • Food Processing
  • Medical Applications

25-39 HRc
Soft Work-Hardened

Better

Slightly

  • Corrosion resistance increased by annealing

316SS

  • Valves & Pumps

25-39 HRc
Soft Work-Hardened

Best

Slightly

2017 Aluminum

 

54-72 HRc

 

 

 

BG42

 

60-65 HRc

 

 

 

S-2 TOOL STEEL

  • Oil Field Equipment
  • Off-Shore Drilling

50 Min. HRc
Thru-Hardened

None

Slightly

  • Severe shock load

REXALLOY STELLITE

  • Down-Hole Pumps
  • "Balls and Seats"
  • Nuclear Bearings
  • Check Valves

Supplied Material

Best

Slightly

  • Supplied material
  • Corrosion resistant in heavy water

CARBON 1013-1018

  • Casters
  • Drawer Slides
  • Media
  • Bearings
  • Door Locks
  • Conveyors
  • Bicycles
  • Roller Skates

60 Min. HRc
Case-Hardened

None

Highest

  • Inexpensive anti-friction bearings

CARBON 1065

  • Same as 1013-1018

60 Min. HRc
Thru-Hardened

None

Highest

  • Same as 1013-1018

BRASS

  • Valves

75-87 HRc
Soft         
Work-Hardened

Good

None

  • Lower cost for corrosion resistance
  • Excellent corrosion to H20.fuel, oil, gas, butane.etc

 

430SS

  • Auto-Fuel valves
  • Finger Pumps

20 Max HRc
Soft
Work-Hardened

Best

High

 

T-15 (Rod/Powder)

 

65-68 HRc

 

 

 

TIC COATED (440CVM)

  • Ultra High Precision Brgs
  • Aerospace Applications

58 Min. HRc

 

High

  • Usually 440SS core ball

TUNGSTON
CARBIDE

  • Paint Sprayers
  • Some Bearings
  • Gas Lift Valves

 

Better

Hight

  • Very Hard Material

HASTELLOY

  • Check Valves

 

Better

 

  • Chosen for corrosion resistance
  • Super tough
  • Soft Material

TITANIUM

  • Check Valves

 

Good

 

  • Med. Hard Material

CERAMICS

COMMON USES

HARDNESS

RESISTANCE TO CORROSION

Density

SPECIAL COMMENTS

ALUMINA OXIDE - 99.5% Pure

  • Check Valves
  • Chemical Pumps

Hard  (1700Hv)

Best

3.87

 

ZIRCONIA OXIDE

  • Check Valves

Hard

Best

 

 

SILICON NITRIDE

  • High Precision Bearings
  • Some Check Valves
  • High Speed or High Load
  • Automotive Injectors

1300 Min. Hv

Best

None

  • Good at high temps. (2550 F)
  • No lubrication needed

PLASTICS INJECTION MOLDED

COMMON USES

HARDNESS

RESISTANCE TO CORROSION

Density

SPECIAL COMMENTS

ACETAL

  • Drawer Slides
  • Check Balls
  • Sailboat Blocks
  • Light Duty Bearings in Corrosion

M94
R120

 

1.42

 

ACRYLIC

  • Bearings

M96

 

 

  • Clear Balls

NYLON

  • Check Valves
  • Finger Pumps

R121
R108

 

1.14

  • 1.2% - High Absorption

POLYAMIDE-IMIDE aka TORLON

  • Bearings
  • Sailboat Blocks

E86

 

1.38

POLYCARBONATE aka LEXAN

  • Bearings

M70
R118

 

1.2

 

POLYETHYLENE High Density

  • Plugs
  • Level Indicators

 

 

.96

  • 0.96 - Floats
  • 900% - Elongated

POLYETHYLENE Low Density

  • Plug Balls

 

 

.91

  • 0.91 - Floats
  • 590% - Elongated

POLYPROPYLENE

  • Check Balls
  • Plug Balls
  • Level Indicators

99

 

.902

  • 0.902 - Floats

POLYSTYRENE

  • Medical Diagnostic Kits

M75

 

1.05

  • Clear balls

VOID FREE FROM EXTRUDED ROD

COMMON USES

HARDNESS

RESISTANCE TO CORROSION

DENSITY

SPECIAL COMMENTS

PTFE aka TEFLON

  • Check Valves
  • Piviot Ball

D50
D65

 

2.14 - 2.24

  • 0.01 - Low Absorption
  • 2.14 - 2.24 - High Gravity

GLASS

COMMON USES

HARDNESS

RESISTANCE TO CORROSION

MAGNETIC

SPECIAL COMMENTS

  • SODA-LIME

  • Aerosol Agitator

Very Hard

Inert

N/A
  • Inert to corrosion

Please note that the material information provided on our website is for informational purposes only. The properties listed per product type are typical and can vary based on suppliers of raw materials and customer specific needs. Please contact customer service for verification prior to ordering. Price and delivery may be subject to change based on specific requirements.

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