SQL Server Transpose , partially at least

Hi, i am trying to create a SQL Sp that will output some data, but it needs to do a partial transpose.

the current data is in rows, and looks like this. Lets call this Table CURRDATA
ID 1             ID2           TYPE        RATE   END_DATE
ABC123      786efr      XXX         5.5       12/31/2019
XXYYZZ       AABBCC   YYY         6.9        6/30/2020

etc... they key for the table is the combination of ID1 and ID 2

I need to re-arrange this output for import to another system, and it needs to be somewhat transposed. The output should look like this, with a line for each value outside the key.
 
ID1               ID2                Property                    Value
ABC123      786efr            TYPE                           XXX
ABC123      786efr            RATE                           5.5
ABC123      786efr            END_DATE                 12/31/2019
XXYYZZ       AABBCC         TYPE                           YYY
XXYYZZ       AABBCC         RATE                           6.9
XXYYZZ       AABBCC          END_DATE                6/30/2020

Can someone help me write this SQL to get the desired output?