SJ B1

B1
In service1960–present
ManufacturerKalmar Verkstad
Family name1960s-cars
Constructed1960–1968
Entered service1960
Refurbished1985–1989
Number built100
Number in service8
Number scrapped~90
Capacity62
OperatorsTÅGAB, Transdev, SkJB SJ(former)
Specifications
Car length24,10 m
Width3,14 m
Height4,07 m
Maximum speed160 km/h (99 mph)
Weight40–45 tons depending on version
Track gauge1,435 mm (4 ft 8+12 in) standard gauge

B1, formerly Bo1 is a Swedish second class passenger car built by Kalmar Verkstad. The carriage belongs to the 1960s-cars family and was primarily used by the Swedish state railways, SJ between 1960 and 2006. The type remains in service in Sweden with private operators, including TÅGAB and Snälltåget. A total of 8 carriages remain in service in Sweden. Some carriages were sold to the Croatian state railways after their retirement from the SJ fleet.