Jump to content
I Forge Iron

SCM415 Steel Quality


Recommended Posts

Hi All,

Can someone tell me if SCM415 steel is the same quality as Grade 8 steel?

I'm looking to order from China and they don't know if it's the same. My customer here in the USA wants Grade 8 or better steel for his product.

Only info China could give me is shown below. Any advice would be greatly appreciated! 

JIS: SCM415 

AISI: 4115

DIN: 15CrMo5  

C: 0.13 - 0.18 

Si: 0.15 - 0.35

Mn: 0.60 - 0.90

P: <= 0.030

S: <= 0.030

Ni: N/A

Cr: 0.90 - 1.20

Mo: 0.10 - 0.25

Link to comment
Share on other sites

Welcome aboard Steel Maker, glad to have you. If you put your general location in the header you'll discover who is within visiting distance.

As far as I know "Grade 8" is not a steel designation in the USA. It is a mechanical specification for fasteners: tensile strength, elasticity, etc. but not steel analysis. 

Good luck ordering from China. 

Frosty The Lucky.

Link to comment
Share on other sites

It’s funny, I was just reviewing a design standard today due to a quality issue at work and one of the materials listed for an 8.8 bolt was 1017. I was quite surprised a how long the list of acceptable material was. I was particularly looking for specs on a 11.9 bolt, and that grade was more exclusive. It’s not all in the material for making the bolt strength/toughness, much of it is in the processing. (I specifically used 8.8 and 11.9 here, because this is not a specialty of mine and was dealing with metric fasteners. Maybe a different grade standard?)

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...