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Polysteel

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Properties
 
Various property index as tested in XYZ laboratory.
Property Typical Values ASTM Test Method
• Mechanical
Density. g/cm3
Tensile strength at yield, MPa (Ksi)
Tensile strength at break, MPa (Ksi)
Elongation at break, %
Young's modulus, GPa (106 Psi)
     At 230C (730F)
     At -2690C (-450 0F)
izod impact strength, kj/m (ft – lbf/in.) notch
     At 230C (730F)
     At -400C (-400F)
Hardness, Shore D
Abrasion resistance
Water absorption, %
Relative solution viscosity, dL/G		   
0.926-0.934
21(3.1)
48(7.0)
350
  
0.69(0.10)
2.97(0.43)
  
1.60(30)
1.1(21)
62 – 66
100
Nil
2.3-3.5		   
D792
D638
D638
D638
  
D638
D638
  
D256(a)
D256(a)
D2240
Sand Slurry
D570
D4020
• Thermal
Crystalline range, powder, 0C(0F)

Coefficient of liner expansion,10-4/K
     At 20 to 100 0C (68 to 212 0F)
     At -200to - 1000C (-330to-150'F) 		  
138-142(280-289)
  
  
  
2
0.5		   
Polarizing
Microscope
  
  
D696
D696
• Electrical
Volume resistivity. m
Dielectric strength, kv/cm (v/mil)
Dielectric constant
Dissipation factor, X 10-4
     At 50Hz
     At 1KHz
     At 0.1MHz		   
>5x1014
900(2300)
2.30
  
1.9
0.5
2.5		   
D257
D149
D150
  
D150
- NOTE: Properties may vary depending on various factors.
 
 

Comparison of Dynamic Coefficent Of Friction On Polished Steel
Property Polysteel Nylon 6/6 Nylon 6 Teflon Delrin® Nylatron GS®
Dry 0.10 – 0.22 0.15 – 0.40 0.15 – 0.40 0.04 – 0.25 0.15 – 0.35 0.12 – 0.20
Water 0.05 – 0.10 0.14 – 0.19 0.14 – 0.19 0.04 – 0.08 0.10 – 0.20 0.10 – 0.20
Oil 0.05 – 0.08 0.02 – 0.11 0.02 – 0.11 0.04 – 0.05 0.05 – 0.10 0.08 – 0.10
 
 

Static And Kinetic Coefficient Of Friction
Material Static Kinetic
Mildsteel Vs. Mildsteel 0.30 – 0.40 0.25 – 0.35
Mildsteel Vs. UHMW PE 0.15 – 0.20 0.12 – 0.20
UHMW PE Vs. UHMW PE 0.20 – 0.30 0.20 – 0.30
Test method = ASTM D 1894
 
 

Notched Impact Strength Values*
Material Impact Strength mj / mm2
POLYSTEEL >140
HM HDPE 40
HDPE 13
PTFE 19
PP 15
POM 12
NYLON-6 10
*As per modified DIN 53453
 

Chemical Resistance Of Polysteel In Comparison With PP, POM, PTFE AND PA
Chemical POLY PP POM PTFE PA
Water + + + + -
Acid + + - + -
Lye + + + + +
Hydrochloric Acid + + + + +
Halogens - - - + -
Oxidizing Comb. - - - + -
Oils / Fats + + + + +
Alcohols + + + + (+)
Ester + (+) (+) + +
Organic Acid + (+) (+) + (+)
Aromatics (+) - (+) + (+)
+ Resistant, (+) Limited Resistance, - Not Resistance
 
 

Abrasive Resistance Sand Slurry Test
Polysteel 15
Nylon 31
High MWPE 44
TFE 72
Stainless Steel 84
Polypropylene 87
Polycarbonate 96
Polyacetal 110
 
TFE / glass fiber 113
Normal MWPE 125
Phosphor bronze 193
Yellow brass 409
Phenolic laminate 571
Hickory wood 967
Hi carbon steel 100
   
Each material listed above was rotated 24 hours @ 1750 r.p.m.
Carbon Steel = Abrasive rating of 100
The weight loss for each material is relative to 100
The lower the figure, the better the Abrasive Resistance
50-50 sand / water slurry.