D2 Chemical Composition

[Tim Simmermon]

I am trying to find the SAE Chemical Composition tolerances for D2. I have been able to find Typical compositions on various suppliers website, but I need to see the actual SAE numbers. I have a Heat treater who says my matl is bad and he sent it out for analysis. Everything I see came back in spec (some at the low end) and he still says it's no good. I need something to prove them wrong. Does anybody have a sheet that lists the tolerances?

 

TIA

[Fred @ Slate Industries]

Oldschool,Spark test! grind some of it versus known hard D2. O-1 has a dark orqnge spark.

S-7 has a light yellow almost white spark.

 

When all else fails tell the heat treater

(FPM,Metals Tech,) to "Run it in Salt' to get it hard. (Horizon won't do it)

 

Good luck

[B. Rad]

I first check McMaster Carr, they have a little blurb on all kinds of steel. Where was the material purchased from?

[Tim Simmermon]

Tony,

 

Thanks. It's not one of the local guys. It's a company that my customer requires we use. I found on SAE's website that they offer a list of all chemical specs for $63. Trying to find a freebie.

 

Both the certs from the supplier and the chemical analysis shows that it is D2. It might not be the purest D2, but it's D2. So they steel company fulfiled it's responsibility.

 

Problem is that the parts came out soft after the first run in the furnace. They say all other parts that were D2 came out fine, and only ours were soft. So they say ours is not D2.

 

I wish I could just pull the job, but then my customer won't accept it. Stuck until I can prove the heat treater is wrong.

[Tim Simmermon]

B. Rad,

 

It was purchased from Cincinnati Tool Steel. Good thinking on McMaster, but no chemical compositions online. I'll have to check the book tomorrow.

[B. Rad]

2nd try I go to www.matweb.com www.matweb.comhttp://www.matweb.com/search/DataSheet.aspx?MatGUID=37de2ca8d34c415fbdee5add2f86f06f

[B. Rad]

mat web is large, cruz all the materials and see what you can find?

[Tim Simmermon]

B. Rad,

 

Thanks again for the reference. They have some pretty good info on there. I guess I am looking for something that says:

 

"The SAE Specification for D2 tool steel is....."

 

Then there is no denying.

[peon]

This may help. http://www.bucorp.com/files/aisi_d2.pdf

[[email protected]]

Thanks for the link peon. I work with a lot of D-2 and this might come in handy some day

[peon]

I have seen D-2 and A-2 heat treated on a daily basis at a former employer. The only time we had a problem getting the steel hard was at fault of the steel composition. The steel company will NEVER admit to their wrongdoing. You may have to eat the cost.

[Tim Simmermon]

Thanks for the link. The steel certifies to SAE/AISI standards, and other companies that have pulled material from this lot have not had problems.

[peon]

How hard is the steel? Did they draw it back to a softer state?