Chrome Molly Steel
Chrome Molly Steel
(OP)
I have a customer asking for a Chrome Moly Steel casting, and I need to figure out what the chemistry is so we can quote it or an equivalent. The only reference they could give me was to another part they get for a similar application and it is a Nordberg part, material is listed as 60 C Chrome Moly - Heat Treated to 302-352 Bhn. Does anyone have any ideas to a cross reference or what this material may be commonly known as?
thanks in advance
thanks in advance
Bob Dzugan
www.buyCASTINGS.com





RE: Chrome Molly Steel
RE: Chrome Molly Steel
arunmaro is right but this reference is for steel.
For casting the reference is ASTM A220 and A602.
the problem with this material is that there is only mechincal performance as requirement. the is a lot of chemical composition possibilities to get this material.
Do you have any additionnal informations for this?
RE: Chrome Molly Steel
regards,
Hydroformer
RE: Chrome Molly Steel
RE: Chrome Molly Steel
I don't like this process for root pass but as this process limite the Hydrogen in the weld it is good for this application. Note that this kind of material is sensible to Cold crack.
note that the proportion of M and Cr is really important for the determination of the welding process and parameters.
RE: Chrome Molly Steel
RE: Chrome Molly Steel
If you give us the chemical composition, I sure that some on or myself can give you some advise.
RE: Chrome Molly Steel
What particular component is the part as the description of the second part sounds strangely like a shaft callout?
RE: Chrome Molly Steel
What is the product your customer is seeking? Castings require patterns and the type of part will determine the correct ASTM referance for castings. For example pressure retention casting is much diferant than a decretive or structal casting.