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Steel piston and connecting rod

Contrary to aluminium pistons, it is in the steel piston and in the connecting rod where the bushing is a true bearing element.
For extreme loads, Wieland U17 are used.
For medium loads, also Wieland SB8 can be used.
For connecting-rod bushings Wieland offers to do a PC calculation for the design.

Wieland-U17 (CuAl10Ni5Fe4) (PDF, 77 KB)

Excellent for steel pistons
Dynamic load resistance over 150 MPa ( see diagram )
Excellent corrosion resistance ( see diagram )
Wrought alloy (important: no casting), which is hot and cold formed
Coefficient of expansion of U17 (20°-300°C) 16,6 x 10^-6 x K^-1
Coefficient of steel (20°-300°C) approx. 12 x 10^-6 x K^-1

Wieland-L66 for wrapped bushings (PDF, 12 KB)

Best press fit of all materials (press-out force equal or higher than injecting force)
Load resistance
( see diagram )
Excellent corrosion resistance
( see diagram )
Alloy is wrought alloys
Coefficient of expansion L66 (20°-300°C) 18 x 10^-6 x K^-1

Wieland-SB8 (PDF, 29 KB)

Can also be successfully used for steel pistons and connecting rods if the interference fit of the bushing is correctly designed
Outstanding oil corrosion resistance
Wrought alloy (important: no casting) which is hot and cold formed
Dynamic load resistance up to 150 MPa
Coefficient of expansion of SB8 (20°-300°C) 19,2 x 10^-6 x K^-1
Coefficient of expansion of aluminium alloy (20°-300°C)
19,5 - 21,5 x 10^-6 x K^-1
Corrosion resistance
Load resistance

Wieland-L67 for machined bushings (PDF, 12 KB)

Best press fit of all materials (press-out force equal or higher than injecting force)
Load resistance
( see diagram )
Excellent corrosion resistance
( see diagram )
Alloy is wrought alloys
Coefficient of expansion L67 (20°-300°C) 18 x 10^-6 x K^-1

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Current metal prices

Officials (Prompt) of	02/10/2012
Cu (Settlement)	8,591.00 in USD / t
Zn (Settlement)	2,112.50 in USD / t
EUR (Bid)	1.32110 USD
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Corrosion resistance & resistance to stress

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