Need to settle a debate - Tool Steel O-1 or 0-1
Need to settle a debate - Tool Steel O-1 or 0-1
(OP)
I am looking to settle a debate on the call out for a specific tool steel.
What should the call out be for 0-1 Tool Steel?
Is it the letter 'O' or the number 'zero'?
O-1 Tool Steel
or
0-1 Tool Steel
I have seen both of them used. I have called metal suppliers and they said they are inter-changeable.
Please help settle this issue.
Thank you,
Micromatic
What should the call out be for 0-1 Tool Steel?
Is it the letter 'O' or the number 'zero'?
O-1 Tool Steel
or
0-1 Tool Steel
I have seen both of them used. I have called metal suppliers and they said they are inter-changeable.
Please help settle this issue.
Thank you,
Micromatic





RE: Need to settle a debate - Tool Steel O-1 or 0-1
http://www.engineersedge.com/tool_steel.htm
This post has been brought to you by the letter 'O'.
RE: Need to settle a debate - Tool Steel O-1 or 0-1
I think it is "O"pen for comment.
(Is the "0" tool steel is only good for very, very tiny h0les.)
RE: Need to settle a debate - Tool Steel O-1 or 0-1
Thank you,
Micromatic
RE: Need to settle a debate - Tool Steel O-1 or 0-1
RE: Need to settle a debate - Tool Steel O-1 or 0-1
I doubt you will be given a definitive answer ... especially with that attitude.
RE: Need to settle a debate - Tool Steel O-1 or 0-1
Thank you,
Micromatic
RE: Need to settle a debate - Tool Steel O-1 or 0-1
"...a tool classification system has been developed in which the commonly used tool steels are grouped into seven major categories. These categories, several of which contain more than a single group, are listed in the following with the letter symbols used for their identification. The individual types of tool steels within each category are identified by suffix numbers following the letter symbols."
"O" refers to the "Oil hardening types"
RE: Need to settle a debate - Tool Steel O-1 or 0-1
http://w
Matches with the first answer above: Letter then number for all other steel in their list.
RE: Need to settle a debate - Tool Steel O-1 or 0-1
Ted
RE: Need to settle a debate - Tool Steel O-1 or 0-1
Thank you,
Micromatic
RE: Need to settle a debate - Tool Steel O-1 or 0-1
RE: Need to settle a debate - Tool Steel O-1 or 0-1
The correct designation is O1, not O-1 or 0-1. Suppliers that tell you the designations are interchangeable are doing you a disservice. Designations for metallic alloys are standardized, which means going to the appropriate standard will tell you what the designation is supposed to be. In this case, ASTM A 681 Standard Specification for Tool Steels Alloy is the appropriate standard, and Table 1 shows the designation as UNS T31502, Type O2 as well as the chemical composition requirements. Efunda, Machinery's Handbook, and well-intentioned, but incorrect suppliers are not definitive sources and should not be considered as such. The following is a link to the ASTM website for ASTM A 681:
http://www.astm.org/Standards/A681.htm
RE: Need to settle a debate - Tool Steel O-1 or 0-1
2. Seems odd for someone with a total of 6 posts to be lecturing long term and valuable members on the function of this site.
3. Even though we are engineers, we still like to have fun in our own way. One is to poke a bit of light-hearted fun at easy questions that could be very easily answered by a Google search or quick reference to any of several widely available, well known sources of engineering information. Even the McMaster-Carr catalog will tell you that the "O" is for oil-hardening.
-handleman, CSWP (The new, easy test)
RE: Need to settle a debate - Tool Steel O-1 or 0-1
I was waiting for that.
Good call.
V