I’m trying to identify the standard that this “Defect Comparator” is associated with. I want to refence it in a speciation. Any advice would be much appreciated.
Hi all,
I have a UL certified product that contains plastic parts (PA6). To attain citification all the relevant tests were done by UL including verifying the plastic material supplier was one from their list of certified suppliers.
We wish to change the plastic supplier. UL are insisting that...
I’m looking for a material to give me high coefficient of friction (against steel) and good structural integrity in a 20mm o’d ish washer. The washers will be clamped against the steel offering functionality like car brake pads on a disk. But cheap, simple and small.
Any advice the best...
Hi, I hope someone can help me. I’m having problems with our manufacturing partners not being able to control the final dimensions of a spring clip.
The clip is as shown in the image below. The problem is they can’t maintain the 60.54 dimension with in a tolerance of +0/-5mm. After forming the...
I’m trying to calculate the max torque a bar can be expected to support based on its tensile strength.
Is the following correct:-
Radius of Bar (mm)= r
Moment of inertia =I=pi*r^4/4
Section modulus =z= I/r= (pi*r^4/4)/r= pi*r^3/4
Torque (Nmm)= T
Tensile Strength (N/mm^2)=S
T=S*z
I have searched the web looking for the UNS or ASTM equivilent of BS1490 LM24 & LM6 and can't seam to find an answer.
I think LM24 is the equivalent of UNS A03800 (A380.0-F) but the mechanical properties I find on LM24 do not seam to match A380.0-F on matweb.com.
And perhaps LM6 is equivalent...
I'm looking for the following data for A14130 (A413.0):-
Elastic modulus
Shear modulus
Compressive strength
And
Thermal expansion coefficient
Also what is the difference between LM24 and A413.0?
Thanks in advance
