Steam for freight haulage was finally withdrawn in 1959.
The sole service was the passenger train Unionsexpressen between Oslo and Stockholm; it had previously offered freight haulage on contract.
The type was initially designed for freight haulage.
This design differed from the Class A (later D1) mainly in its smaller drivers for greater tractive effort for freight haulage.
The C class were purchased by the Victorian Railways for heavy freight haulage.
Many charged that the TG&BR's troubles were due to the narrow gauge which made freight haulage uneconomic.
The service was reduced to freight haulage and tube traffic, until its final closure in 1970.
Since their construction the X and Xa classes had been dominant on freight haulage, often working in multiple with members of the Y Class.
The PRR also desired to apply the duplex principle to freight haulage, and the Q1 was the first experiment in that direction.
They have now moved into general freight haulage.