According to afloat.com:
“The SS Ayrfield (originally launched as SS Corrimal) was a steel-hulled, single screw, steam collier of 1140 tonnes and 79.1m in length. It was built in the UK in 1911 and registered at Sydney in 1912. It was purchased by the Commonwealth Government and used to transport supplies to American troops stationed in the Pacific region during WWII. In 1950, it was sold to Bitumen and Oil Refineries Australia Pty Ltd and in 1951 sold to the Miller Steamship Company Ltd and renamed Ayrfield. Under the Miller flag, it operated as a collier between Newcastle and Miller’s terminal in Blackwattle Bay.”
To see this shipwreck on Google Maps, click here (you may have to click ‘satellite view’ to see the satellite imagery of the wreck).