Type of Alloy Material

[Y15ZR]

Hi all members,

I would like to know the different and how we could identify from type (as below) from the composition with below type of alloy material

1. Low alloy
2. intermediate alloy
3. high alloy

Seek your expertise and appreciate

 

[metengr]

These are arbitrary designations used by industry. Typically, low alloy are less than 5% alloy additions by mass to carbon steel. Intermediate would be 12% and high alloy would be well above this amount.

Examples of low alloy include Grade 11, 22, 4130, 4340
Intermediate would include 9 to 12 Cr steel
High alloy would be austenitic stainless steel, nickel-base alloys, chromium-nickel-molybdenum alloys.

 

[EdStainless]

It is arbitrary. If you are just talking about steels most people would consider anything in the range of 2.25% Cr up through 9% Cr to be medium alloy grades, though some people consider 9%Cr to be a high alloy product. In high alloy grades you have things like 12% Cr and tool steels.
A lot of it has to do with processing requirements not just alloy content.
And the phrases are also used within alloy groups.
So for Duplex Stainless Steels you have lean alloy grades (2001, 2002) Intermediate (2205), and high alloy grades (2507, Zeron 100).

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P.E. Metallurgy, Plymouth Tube

 

[Y15ZR]

metengr & EdStainless

Appreciate and thanks for your respond.