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SK 550-050

Base Material / Conditions

Unbenanntes DokumentThe working pressure specifications on the preceding page are obtainable under the following conditions:

Base Material
of the Installation
Tensile
Strength
(avg.) [N/mm²]
Elongation (min.)
[%]
Ultimate Strength
(avg.) Rp 0.2
[N/mm²]
Hardness
(min.) HB
High Strength St.
ETG-100
AISI 1144
1000
6
865
280
Free Machining Case
Hard. Stl. C15Pb
Din 1.0403
560
6
300
180
Cast Iron
GG-25
DIN 1691
250
-
-
160
Ductile Cast Iron
GGG-50
DIN 1693
500
7
320
170
Aluminium-Alloy
Al CU Mg 2
DIN 3.1354 / AA2024
480
8
380
120
Aluminium-Alloy
Al Mg Si Pb
DIN 3.0615 / ~AA6262
340
8
300
90
Cast Al Alloy
G-Al Si 7 Mg
DIN 3.2371 / AA356-T6
300
4
250
80
  • Equivalent working pressure capability can be obtained when using base materials with similar mechanical characteristics. However, the appropriate installation instructions must be followed.

  • Applications for cast aluminium, magnesium alloy, other non-ferrous metals and non-metallic materials upon request

  • Factors which may lower the working pressure capability are:
    - anchorage principle
    - bore roughness requirements
    - design guidlines
  • Anchorage between sleeve and base material is achieved when the sleeve is a minimum of HB = 30 greater than the base material. If the hardness difference is less, hole roughness of 10 - 30 µm is needed to achieve indicated working pressures
Security Range

The security range (the difference between working pressure and Test (B) pressure) allows for uncontrollable variations. For instance, dynamic loading at 1 million cycles and a frequency of 3 - 4 Hz has shown that burst pressure Test (A) and Test (B) pressure are reduced about 20% after this point.
 


Subject to technical alterations.