Here is an interesting and useful resource from the USGS for iron and scrap statistics (prices) from 1934 to 2009
Iron and Steel Scrap Worksheet
The sources of data for the iron and steel scrap worksheet are the mineral statistics publications of the U.S. Bureau of Mines and the
U.S. Geological Survey—Minerals Yearbook (MYB); Mineral Commodity Summaries (MCS) and its predecessor, Commodity Data
Summaries (CDS); and Metal Prices in the United States through 1998 (MP98). The years of publication and corresponding years of
data coverage are listed in the References section below.
For 1939–54, the production was calculated with the formula:
PRODUCTION = APPARENT CONSUMPTION – IMPORTS + EXPORTS ± STOCK CHANGES.
For 1955 to the most recent year, production is the sum of home scrap and purchased scrap from the MCS and CDS.
Imports of iron and steel scrap into the United States are reported for 1936 to the most recent year in the MYB. Data were not
available for 1934–36.
Exports of iron and steel scrap from the United States are reported for 1934 to the most recent year in the MYB.
Stocks of iron and steel scrap in the United States are reported for 1938 to the most recent year in the MYB, some data may reflect
unpublished revisions made by the USGS iron and steel scrap commodity specialist. Data were not available for 1934–37.
U.S. apparent consumption of iron and steel scrap is reported for 1935 to the most recent year in the MYB, some data may reflect
unpublished revisions made by the USGS iron and steel scrap commodity specialist. Datum was not available for 1934.
Unit Value ($/t)
Unit value is the value in dollars of 1 metric ton (t) of apparent consumption. Unit value for iron and steel scrap is estimated from a
price series in MP98 for heavy melt scrap for 1934–98. For 1999 to the most recent year, the composite price for Number 1 Heavy
Melting steel is from the MYB.
Unit Value (98$/t)
The Consumer Price Index conversion factor, with 1998 as the base year, is used to adjust unit value in current U.S. dollars to the unit
value in constant 1998 U.S. dollars.