A182 F11 Class 2 Modulus of Elasticity 2

[Tuckabag]

Hi All,
Can anyone provide me with modulus of elasticity data for A182 F11 Class 2?
Matweb shows 200GPa for A182 F11 Class 1, but no info for Class 2.
Had a play with google but came up empty.
I need this to perform a wake frequency calc.
Cheers.

 

[salmon2]

It shall be same as class 1 and the value of 200GPa you quoted is the typical number for all low alloy carbon steel.

 

[Tuckabag]

Thanks salmon2.
I did notice on the MatWeb datasheet that the 200GPa figure quoted was commented as "typical for steel".
I'll use this for our calculations.
Cheers!

 

[EdStainless]

Or look in the back of the B&PV Code and see what ASME lists.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

 

[doct9960]

Tuckabag,

Have a look at Table TM-1 of ASME II Part D.

The modulus of elasticity (E) is temperature dependent. 200 GPa is based on a temperature of 100°C. As the temperature increases, E decreases. If you want an accurate E for a given temperature, you might want to look at Table TM-1. If the E you are looking for is between reference temperatures, you will need to interpolate.

 

[Tuckabag]

Hi all, thanks for the info.
Our design temp is +100degC, so we have chosen to go with 200GPa.
Out of interest I re-ran our calcs up to +/- 20% of the 200GPa figure used and the variation on the natural frequency calculated was only approx -2Hz to +4Hz so it made very little difference for our application.
Cheers.