Evidence:
Merthyr's early iron production
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The table
below is derived from a number of sources including H. Scrivenor's
History of the Iron Trade written in 1854. Any figures from
this period will be suspect because of the many ways in which production
was measured.
These figures
indicate the shipments of finished iron sent to Cardiff along the
Glamorganshire Canal between 1803 and 1840. All figures are in tons
per year.
Figures for
the earlier period are rare but some estimates indicate that 36,000
tons of pig iron was produced across South Wales in 1796. and 6,000
tons of this was produced at Cyfarthfa.
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Date
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Dowlais
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Cyfarthfa
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Penydarren
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Plymouth
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1803
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Total Merthyr production was about 10,000 tons
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1817
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9,936
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14,191
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8,275
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7,095
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1818
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9,694
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15,706
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8,834
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7,377
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1819
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10,796
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16,646
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7,549
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7,633
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1820
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11,115
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19,010
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8,690
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7,941
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1821
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12,571
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18,070
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10,018
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9,943
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1822
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14,557
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17,137
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9,924
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8,833
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1823
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14,025
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19,452
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10,240
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10,920
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1824
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12,594
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20,399
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10,358
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9,499
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1825
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15,851
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23,063
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10,611
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11,269
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1826
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16,601
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20,206
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8,691
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7,836
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1827
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20,726
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29,312
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10,369
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12,907
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1828
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23,575
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30,011
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10,223
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12,976
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1829
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23,352
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24,768
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10,085
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13,534
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1830
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27,647
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19,892
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11,744
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12,177
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1831
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22,075
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15,465
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11,819
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10,498
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1832
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29,395
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24,688
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10,582
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9,200
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1833
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35,072
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37,380
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12,150
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12,093
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1834
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33,477
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34,952
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12,752
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12,073
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1835
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39,145
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35,090
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12,834
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12,631
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1836
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39,286
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34,654
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12,537
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13,573
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1837
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38,914
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33,580
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12,834
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15,353
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1838
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39,361
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36,986
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12,707
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16,143
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1839
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40,495
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37,009
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15,540
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15,762
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1840
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45,218
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35,507
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16,130
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12,922
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