What is the Difference Between 20MnCr5 and 20MnCr5H ?

Q: What is the Difference Between 20MnCr5 and 20MnCr5H ?

Today one Europe customer asked one question: What is the Difference Between 20MnCr5 and 20MnCr5H ? Actually there are some other customers who have the similar questions, such as 8620 and 8620H, 16MnCr5 and 16MnCr5H. The answers are also similar. With suffix H, it means the hardenability is different. In the standard EN 10084:2008, 5.2 f) requirement for restricted hardenability scatter bands for alloy steels (+HH, +HL-grades, see 7.1.2 and Table 6); 7.1.2 Unless otherwise agreed for alloy steels the hardenability requirements given in Table 5 apply. If agreed at the time of enquiry and order alloy steels with restricted hardenability scatter bands given in Table 6 shall be supplied. There is suffix of H, even with double H suffix actually. So, 20MnCr5H mean the alloy steel hardenability is ok for the desired purpose. You can check the Table 5 and Table 6. For more details, you please check the EN 10084 standard .

Today one Europe customer asked one question: What is the Difference Between 20MnCr5 and 20MnCr5H ? Actually there are some other customers who have the similar questions, such as 8620 and 8620H, 16MnCr5 and 16MnCr5H.

The answers are also similar. With suffix H, it means the hardenability is different.

In the standard EN 10084:2008,

5.2 f) requirement for restricted hardenability scatter bands for alloy steels (+HH, +HL-grades, see 7.1.2 and
Table 6);

7.1.2 Unless otherwise agreed for alloy steels the hardenability requirements given in Table 5 apply. If
agreed at the time of enquiry and order alloy steels with restricted hardenability scatter bands given in Table 6
shall be supplied.

There is suffix of H, even with double H suffix actually. So, 20MnCr5H mean the alloy steel hardenability is ok for the desired purpose.

You can check the Table 5 and Table 6. For more details, you please check the EN 10084 standard.