Mineral Facts and Problems: 1960 Edition Page: 407
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IRON
407
TABLE 1.-Location and annual capacity of U.S. iron-blast furnaces-Continued
[Thousand short tons]
Jan. 1, 1959 Jan. 1, 1959
Plant location and operating company Number Annual Plant location and operating company Number Annual
of capacity of capacity
stacks stacks
Eastern district-Continued Western district-Continued
Utah:
Massachusetts: Geneva:
Everett: Columbia-Geneva Steel Division......... 3 1,321
Eastern Gas and Fuel Associates......... 1 195 Provo:
Colombia-Geneva Steel Division......... 2 483
New York:
Buffalo: Total---------------5____-- -------- -5 1,804
Hanna Furnace Corp_....-.-....------- 4 850 T
Republic Steel Corp---....---.. ----- 2 683 Total-Western district.. ----------------- 13 4, 639
Lackawanna:
Bethlehem Steel Co..-------------------- 7 3, 590 Southern district
North Tonawanda: Alabama:
Tonawanda Iron Division----------------................ 1 165 Birmingham:
Tonawanda: Republic Steel Corp_.- .----------------- 2 402
Colorado Fuel & Iron Corp_....-.--.---. 2 390 United States Pipe & Foundry Co....... 2 285
Troy: Ensley:
Republic Steel Corp.....-................ 1 263 Tennessee Coal & Iron Division.......... 6 1,829
Fairfield:
Total....-------------------------------- 17 5, 941 Tennessee Coal & Iron Division----------.......... 3 1,388
Gadsden:
Pennsylvania (eastern): Republic Steel Corp-..--------.. ------- - 2 525
Bethlehem: North Birmingham:
Bethlehem Steel Co----- ----------- 7 2, 720 United States Pipe & Foundry Co....... 3 534
Birdsboro: Woodward:
Colorado Fuel & Iron Corp-..--------- - 1 151 Woodward Iron Co----------------------- 4 773
Chester:
Barium Steel Corp. C Total_.........-.-.------------------- 22 5, 737
Phoenix Iron & Steel Co_------_ ----- 1 200.
Fairless Hills: Tennessee:
United States Steel Corp. (Central Opera- Lyles-Wrigley:
tions) ------------------------------- 3 1,878 Merritt-Chapman & Scott Corp.: Ten-
Palmerton: nessee Products & Chemical Corp..... 1 36
New Jersey Zinc Co-------------------...................... 2 3112 Rockwood:
Sheridan: Merritt-Chapman & Scott Corp.: Ten-
Lavino & Co., E. J----------------------....................... 1 4 56 nessee Products & Chemical Corp..... 2 182
Steelton:
Bethlehem Steel Co------------------...................... 3 1,020 Total-------.......-------------------- 3 218
Swedeland:
Alan Wood Steel Co._---.-----.---. - - 2 544 Texas:
Houston:
Total.._----------------------------- 20 6,681 Sheffield Division.------------------- 1 500
Lone Star:
Total-Eastern district_-.-.------------- . 48 18, 297 Lone Star Steel Co--.------------------ 1 385
Total---.....---- -------------------- 2 885
Western district Virginia:
California: Lynchburg:
Fontana: Lavino & Co., E. J-----------------..................... 2 6128
Kaiser Steel Corp_....- ..------. ------.. 4 1, 912
Colorado: Total-Southern district__.----.---------- 29 6, 967
Pueblo:
Colorado Fuel & Iron Corp............... 4 922 Total all districts ------------------------- 266 94, 635
1 Includes 240,000 tons of ferroalloys capacity.
2 Includes 302,500 tons ferroalloys capacity.
a Spiegeleisen only.
4 Ferromanganese only.
the overburden-to-ore ratio since World War
II. Underground mines still produce about
25 million long tons annually, but the high cost
of labor, hoisting, ground support, and many
other items, and a low percentage of extraction
make all except the high-grade, direct-shipping
mines marginal in most areas.
OPEN-PIT MINES
Mining methods in the various open pit iron
mines are similar, but vary widely in detail.
Overburden is stripped with power shovels,
draglines, or scrapers, and is transported either
by rail, trucks, conveyor belts, skips or in the
scrapers. The overburden on shallow, thin
6 Includes 39,000 tons of ferroalloys capacity.
b Ferromanganese.
Source: American Iron and Steel Institute.
bedded deposits is often double or triple cast
with a dragline excavator. The choice of equip-
ment is controlled by the physical character-
istics of the overburden, the depth and size of
the ore body, and the nature of the surrounding
terrain.
In large pits, ore is loaded exclusively with
power shovels, but in some thin-bedded deposits
it is loaded with dragline excavators. Ore is
transported from the pits by rail, trucks, skips,
conveyor belts or by combinations thereof; the
choice with few exceptions is ruled by the grade
of haul and the size of the operation.
Drilling equipment used in large, open-pit
iron mines includes churn drills, rotary drills.
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United States. Bureau of Mines. Mineral Facts and Problems: 1960 Edition, report, 1960; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc38790/m1/415/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.