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39 minutes ago, Ronaldinhu said:

Ostetaan 69mm vastapainokampiakseli ja säädettävä nokkapyörä. Ja jos on jollakin tietoa mistä sais halvimmalla uuden niin saa vinkata.

löytys uusi 4140cromoly  69mm vastapainoakseli.8 tappinen.h.330e.

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4 hours ago, Ronaldinhu said:

Nii onko tuo muuten jotain kiinanterästä tuo 4140? Ku empin akseli näyttäs olevan 4340?

4340 steel and 4140 steel have equal traces of sulfur, phosphorus, and silicon. They also have approximately the same amount of molybdenum (at 0.20–0.30 for 4340 steel and 0.15–0.25 for 4140 steel) and manganese (at 0.60–0.80 for 4340 steel and 0.75–1.00 for 4140 steel). However, 4340 has more carbon, while 4140 has more chromium. One of the most significant differences between the two metals is the inclusion of nickel in 4340 steel, which accounts for the metal’s greater strength and fracture toughness.

 

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