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DOCASON PSU
polysulfone (PSU)
Details »
Choice of sizes »
web_Termek_63
DOCASON PSU
polysulfone (PSU)
Details »
Choice of sizes »

Product features

DOCASON PSU is an unreinforced, unfilled amorphous polysulfone (PSU).

Honey

product family features

The use of PSUs is recommended where chemical, chemical or thermal stresses are present in addition to mechanical stress. High purity, good chemical and hydrolysis resistance, suitable for repeated steam sterilisation. It has excellent heat ageing resistance. Can be used up to 180°C for short periods. It has a characteristic colour: translucent, reminiscent of amber or honey. Available in rod and sheet formats.

DOCASON PSU

Some important features

  • High strength, stiffness (yield strength 50-105 MPa, tensile strength, compressive strength)
  • High toughness at low temperatures - no breakage
  • High hardness (ball indentation: 167 MPa)
  • Wide application temperature range: -50°C to +180°C
  • Very good chemical resistance
  • Physiologically neutral, may come into contact with food and medicines
  • Excellent dimensional stability, good damping capacity
  • Favorable creep resistance over a wide temperature range (10-30 MPa for 1% tension at 1000 h at 23°C)
  • Good electrical insulation
  • Good resistance to high-energy radiation

Main areas of application

Machine components and sub-assemblies, mainly in the food industry, medicine, which have to be cleaned and sterilised frequently (e.g. milking machines, heat exchangers, filters, pumps, etc.).

Machining technology

Chipping (turning, milling, drilling, sawing): conventional tools can be used, but only with a sharp finish. Cooling is recommended, with cutting speeds of v = 200-400 m/min for turning and milling, v = 50-100 m/min for drilling.

Gluing: is feasible (but more difficult than PVDF with similar properties).

Available formats

  • PSU plate
  • PSU rod

Technical data

Downloadable technical data sheet »
Investigation
Unit of measurement
Value
Base properties
Basic colour
-
-
honey
Density
DIN EN ISO 1183
g/cm^3
1.24
Water absorption: saturation in air, 24 h / 96 h, (23ºC)
DIN EN ISO 62
%
0.05/ 0.1
Flammability rating according to UL94
DIN IEC 60695-11-10
-
V0
Mechanical properties
Tensile strength
DIN EN ISO 527-2
MPa
89
River crossing
DIN EN ISO 527-2
MPa
89
Tensile modulus of elasticity
DIN EN ISO 527-2
MPa
2700
Elongation at break
DIN EN ISO 527-2
%
15
Compressive strength
EN ISO 604 1% / 2%
MPa
Flexural strength
DIN EN ISO 178
MPa
122
Charpy impact strength
DIN EN ISO 179-1eU
kJ/m2
175
Charpy impact strength, notched
DIN EN ISO 179-1eA
kJ/m2
4
Ball indentation hardness
ISO 2039-1
MPa
167
Shore D hardness
DIN EN ISO 868
-
83
Compressive strength
23°C, 2N/mm2, 1h
%
Compressive strength
80°C, 10N/mm2, 56h
%
Thermal properties
Melting point
ISO 11357-3
ºC
n.a.
Glass transition temperature
DIN 53765
ºC
188
Thermal conductivity factor
ISO 22007-4:2008
W/ (K.m)
0.21
Forest heat
ISO 22007-4:2008
J/(g.K)
1.2
Coefficient of linear thermal expansion (CLTE): between 23 - 100ºC
DIN EN ISO 11359-1;2
m/(m.K)x10-5
6
Applicable max. temperature in air - short time
-
ºC
180
Applicable max. temperature in air - for prolonged use
-
ºC
160
Minimum temperature of applicability
-
ºC
-50
Thermal stability (HDT)
DIN EN ISO 75, A
ºC
175
Chemical resistance
Chemical resistance at 23ºC: - weak acid
-
-
A-B
Chemical resistance at 23ºC: - strong acid
-
-
B
Chemical resistance at 23ºC: - weak alkali
ISO 11357-3
ºC
A
Chemical resistance at 23ºC: - strong alkali
-
-
A-B
Chemical resistance at 23ºC: - aromatic hydrocarbons
-
-
A
Chemical resistance at 23ºC: - alpha hydrocarbons
-
-
A
Chemical resistance at 23ºC: - chlorinated solvents
-
-
A
Chemical resistance at 23ºC: - alcohols
-
-
A
Electrical properties
Dielectric constant
IEC 60250
-
3.2
Dielectric loss factor (50 Hz)
IEC60 250
-
0.001
Volume resistance
IEC60093
Ω*cm
1014
Surface resistance
IEC60093
Ω
1014
Creep current strength, CTI
IEC 60112
-
125
Dielectric strength
IEC 60243
kV/mm
30
Optical properties
No value to display.
Sterilizability
No value to display.
Wear properties
No value to display.

(*) legend:

A - applicable
B - limited application
C - not applicable

Tables
Thickness
Colour
Table size (mm x mm)
Thickness tolerances: +0.3; +1.5
Mass: 13,61 kg/m
Table size: 500 x 3000 mm
Thickness tolerances: +0.5; +2.5
Mass: 20,52 kg/m
Table size: 620 x 3000 mm
Thickness tolerances: +0.5; +2.5
Mass: 27,0 kg/m
Table size: 500 x 3000 mm
Please contact us for the current availability of each size.
Rods
Diameter (mm)
Colour
Diameter tolerances: +0.1; +0.8
Mass: 0,108 kg/m
Standard length: 1000, 3000 mm
Diameter tolerances: +0.2; +0.9
Mass: 0,420 kg/m
Standard length: 1000, 3000 mm
Diameter tolerances: +0.2; +1.2
Mass: 0,936 kg/m
Standard length: 1000, 3000 mm
Diameter tolerances: +0.2; +1.6
Mass: 1,66 kg/m
Standard length: 1000, 3000 mm
Diameter tolerances: +0.3; +2.0
Mass: 2,60 kg/m
Standard length: 1000, 3000 mm
Diameter tolerances: +0.3; +2.5
Mass: 3,74 kg/m
Standard length: 1000, 3000 mm
Diameter tolerances: +0.4; +3.0
Mass: 6,63 kg/m
Standard length: 1000, 3000 mm
Diameter tolerances: +0.6; +3.8
Mass: 10,38 kg/m
Standard length: 1000, 3000 mm
Please contact us for the current availability of each size.
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