Has anybody had any prior experience in this material?
We have cast this part twice in as many years, last year we reached a hardness of ~50HRC, this year we are only achieving 44HRC (with HT).
We have to fan cool, as an oil quench has cracked these parts in the past. C% is at the high end...
I have a customer requiring a magatteaux spec FMU11.
Does anyone have any experience with this material, and how to go about heat treating to achieve a hardness of 50HRC?
C - 1.25%
Cr - 12%
Si - 0.45%
Mn - 0.55%
S - <0.05%
P - <0.05%
Good day all,
I was wondering if anyone may perhaps know of a cast equivalent of the BS970 605M36 (EN16) spec?
A Mn/Mo steel with approx. 0.35% C
Thanks kindly,
Are there any materials anyone could recommend for being at service a maximum of 500°C.
The part in question will be in contact with other cast parts and so would require some form of wear resistance.
Would an as-cast 309C40 25/12 material be ideal in such situations?
Good day!
My company have been producing castings in CF8M and WCB material for a few years now.
The jobs in particular require a drilling and tapping operation, and this has been causing one or two issues for the machinists (in both materials).
Compared to our competitors castings, our own...
Can anyone tell me what the main advantages would be of having a 7%Cr martensitic material instead of BW10?
I am aware they both have reasonable wear resistance, and suspect 7%Cr is more expensive.
Is 7%Cr a more 'castable' material?
Is there a big difference when it comes to having them in...
I have a Norwegian customer who wishes to weld a mild steel plate onto the front of a 25/12 casting.
Does anyone have any idea what type of consumable they should be using?
My first instincts would be to go for something as close to the 25/12, such as a 309, but i am not sure what effect, if...
I was wondering if anyone was aware of the French metal spec Z40 CMn, and if so, has any relevant information on it they are willing to share. I am under the assumption that it is an AFNOR specification, and believe it to be a 20-9-5 material.
Thanks
Does anyone have an idea of how (if possible) to get 42-50HRC, 8J impact and 1200-1400MPa UTS from a material with 3%Cr, 0.45%C & >1%Mo?
I have thus far managed to achieve the hardness, but approx. half the required UTS with a hardening/tempering approach.
I am currently making castings in BS3100 A1 material, more often than not the castings I have made previously are full of gas holes. Can anyone suggest why this may be? Where can I find typical melting temperatures for this material grade?
