hardness number

[blawn]

Hello everyone,

I am searching the hardness number of SA 178-C material.Its not in ASME part II-A.(or maybe its somewhere there)
I have a requirement to take hardness test on this material and I just want to know the maximum and minimum hardness number limit.
Kindly point me to a reference.Thank you and I appreciate any feedback.

Kind regards,
JB

 

[metengr]

Based on my US Steel and EPRI reference materials for this material supplied under the A178 material specification, I would expect a hardness range of 75 to 85 HRB (Rockwell B scale).

 

[blawn]

Hi metengr,

I will take a look on the references you've provided.Thank you very much.
This would really help me a lot.

Best Regards,
JB

 

[EdStainless]

If it isn't in the material spec then it is reference only and you cannot accept/reject based on hardness. Is the tensile strength correct?

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P.E. Metallurgy, Plymouth Tube

 

[weldstan]

If you need to have a hardness range in your contract specs, you must include that requirement in your P.O. for the material.

 

[metengr]

If the original poster stated it is a requirement, perhaps by the Purchaser, it shall be done if they are paying for it. On occasion I have seen these types of requirements by Purchasers.