In 1970 fifty RCW class wagons were fitted with Glass Fibre roofs and hatches and reclassified RCH. A further forty followed in 1971. In 1973 24091 was re-converted to class RCB, possibly after an accident but more conversions from class RCB followed in the late 1970s and continued until class RCB was extinct. In more recent years the side doors of the RCH class have been replaced by planking whilst in other wagons the planks were replaced completely.

Accident damaged RCH 24095

In 1988 -1990 some wagons were converted to QL (later QD) class flat wagons for sodium cyanide containers. In 1993 sixteen RCH class wagons were converted to RCC class high-sided open wagons for coal traffic.

1970	24035, 24036, 24037, 24049, 24052, 24074, 24091, 24111, 24120, 24125, 24139, 24149, 24152, 24156, 24177, 24178, 24184, 24192, 24194, 24204, 24206, 24210, 24221, 24234, 24243, 24246, 24253, 24264, 24275, 24287, 24290, 24297, 24305, 24315, 24330, 24335, 24341, 24352, 24358, 24366, 24379, 24380, 24382, 24393, 24395, 24399, 24404, 24407, 24411, 24413 ex RCW
1971	24021, 24023, 24024. 24026, 24029, 24041, 24066, 24068, 24069, 24078, 24080, 24105, 24110, 24112, 24115, 24136, 24148, 24154, 24176, 24235, 24240, 24266, 24272, 24273, 24281, 24288, 24294, 24299, 24300, 24307, 24329, 24343, 24354, 24355, 24364, 24368, 24370, 24405, 24408, 24414 ex RCW
1973	24091 to RCB
1976	24120, 24335 written off
1977	24044, 24212 ex RCB
1978	24030, 24039, 24040, 24057, 24085, 24095, 24102, 24108, 24130, 24145, 24151, 24162, 24167, 24171, 24200, 24219, 24226, 24233, 24238, 24239, 24241, 24252, 24257, 24270, 24279, 24282, 24289, 24312, 24313, 24324, 24346, 24351, 24376, 24418 ex RCB
1979	24232 ex RCW 24025, 24028, 24056, 24067, 24077, 24081, 24083, 24097, 24101, 24119, 24121, 24122, 24140, 24142, 24144, 24195, 24196, 24197, 24203, 24213, 24215, 24217, 24245, 24255, 24261, 24267, 24283, 24292, 24328, 24333 ex RCB 24380 written off
1980	24153, 24377 ex RCW 24034, 24046, 24048, 24059, 24062, 24064, 24070, 24079, 24089, 24090, 24092, 24098, 24099, 24100, 24107, 24118, 24128, 24129, 24135, 24137, 24143, 24159, 24163, 24164, 24165, 24166, 24168, 24170, 24174, 24179, 24181, 24182, 24183, 24186, 24187, 24188, 24190, 24201, 24209, 24216, 24230, 24236, 24248, 24256, 24258, 24260, 24262, 24263, 24269, 24274, 24295, 24298, 24304, 24308, 24311, 24322, 24327, 24331, 24336, 24338, 24340, 24348, 24374, 24388, 24389, 24396, 24398, 24406, 24416, 24420 ex RCB
1981	24339 ex RCW 24022, 24032, 24060, 24075, 24076, 24082, 24088, 24103, 24106, 24117, 24133, 24146, 24157, 24158, 24173, 24180, 24193, 24205, 24211, 24218, 24220, 24224, 24225, 24231, 24237, 24244, 24247, 24254, 24265, 24276, 24284, 24286, 24301, 24306, 24309, 24323, 24337, 24342, 24345, 24363, 24371, 24373, 24375, 24381, 24386, 24394, 24401, 24410 ex RCB
1982	24372 ex RCW 24277, 24320, 24391 ex RCB
1985	24193, 24351 written off
1987	24057, 24059, 24095 written off
1988	24118, 24171, 24252, 24295, 24305, 24307, 24325 written off 24081, 24224 (written back), 24346, 24192 to QL and then QD in December 1988. 24115, 24121 written off RCH to QD
1990	24079 written off and then written back again. 24026, 24135 (written back), 24323 to QD
1992	24082, 24217 written off
1993	24048, 24102, 24125, 24133, 24140, 24184, 24187, 24216, 24246, 24315, 24338, 24342, 24370, 24372, 24379, 24418 to RCC 24170 written off
2005	24253 at Forrestfield without bogies 24024, 24032, 24035, 24040, 24044, 24052, 24056, 24062, 24074, 24079, 24080, 24089, 24091, 24101, 24103, 24106, 24110, 24119, 24122, 24129, 24136, 24139, 24142, 24144, 24145, 24151, 24153, 24162, 24163, 24164, 24166, 24179, 24183, 24201, 24210, 24212, 24213, 24215, 24220, 24230, 24247, 24255, 24256, 24257, 24267, 24270, 24281, 24283, 24287, 24288, 24290, 24292, 24298, 24301, 24306, 24308, 24312, 24324, 24341, 24343, 24364, 24373, 24376, 24393 at Forrestfield

The original WAGR outline diagram is shown below, but as can be seen from the photos the side doors were eliminated at some point.