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What is 40CrMo4V ?
4

What is 40CrMo4V ?

What is 40CrMo4V ?

(OP)
Can someone please decifer this designation for me in terms of a USA grade?  I have a guess that it is a variant of SAE 4140 low-alloy steel (i.e. what is the "V" designating).

RE: What is 40CrMo4V ?

It's vanadium.  

I wish I could cross reference the spec for you but I can't.  Have you searched on Matweb?  That usually has equivalent specs listed for the materials...

RE: What is 40CrMo4V ?

2
The designation is 40CrMoV4-6, which is shown in EN 10269 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties.

A similar alloy is Grade B16 according to ASTM A 193/A 193M Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service.

Regards,

Cory

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RE: What is 40CrMo4V ?

(OP)
Matweb did not have the designation I listed.

CoryPad
Are you saying that 40CrMo4V does not exist (this is what was listed on my part drawing).  A typo in other words?

RE: What is 40CrMo4V ?

I have not seen 40CrMo4V standardized anywhere.  Usually the V precedes the number (like my example above, or 51CrV4 in EN 10083-1).  I have heard of people placing a V on the end of materials ordered to DIN standards, and the V stood for vergutet, which means aged/tempered in German.

Regards,

Cory

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RE: What is 40CrMo4V ?

2
I have a reference that says that 40CrMo4V is AISI 4140 and the V without suffix stands for Quench and Tempered.

42CrMo4V is listed as 4140/4142 QT.

Both these Specs have the W-Nr 1.7225



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