Greenhouse gas (GHG) emissions from using Chinese steel in the U.S. are significantly greater than that of comparable steel made in North America, according to a series of reports by the Steel Market Development Institute (SMDI), a business unit of the American Iron and Steel Institute (AISI).
Two peer-reviewed reports (one in North America and another in China) compared hot-dip galvanized (HDG) steel coils produced in North America to the same product produced in China and shipped to the North American market. This type of steel is primarily used in the construction and automotive sectors.
The study found that hot-dip galvanized coil sourced from China results in nearly 50% higher GHG emissions. “In the sustainable design of steel-framed buildings, one of the most important decisions an owner or architect can make regarding environmental impact is to ensure the building’s steel is produced in North America,” said Mark Thimons, vice president of sustainability for SMDI.
Thimons cited an example from another SMDI study involving the design of a four-story cold-formed steel office building in Minneapolis in which the building core and shell includes about 100 tons of HDG. If steel from China was used for this building instead of North American-produced steel, the GHG emissions associated with the production of the steel would increase by more than 100 tons (CO2eq).
Related Stories
Codes and Standards | Mar 5, 2020
France to mandate all new public buildings be 50% timber or other natural materials
Measure would go into effect by 2022.
Codes and Standards | Mar 4, 2020
American Concrete Institute and Precast/Prestressed Concrete Institute expand partnership
Will collaborate on new code requirements.
Codes and Standards | Mar 3, 2020
Wallcoverings industry releases product scorecards concerning sustainability
Tool adds more transparency to certification.
Codes and Standards | Feb 28, 2020
Bay Area communities struggle with what to do about rising sea level
Policies include sea walls, levies, and relocation.
Codes and Standards | Feb 27, 2020
Cell phones present a safety hazard at job sites
Use of ear buds, headphones banned by some contractors.
Codes and Standards | Feb 26, 2020
American Concrete Institute releases 2020 codes, specifications, and practices
ACI Collection features guidance on structural concrete construction and rehabilitation.
Codes and Standards | Feb 25, 2020
New ISO standard for optimizing building use and reusing and recycling components released
Aim is to realize full potential value of a building throughout its life cycle.
Codes and Standards | Feb 21, 2020
Architects push back on proposed uniform design mandate for federal architecture
AIA speaks out against measure.
Codes and Standards | Feb 20, 2020
City-owned buildings to go carbon-free in Los Angeles
Mayor commits to goal for new and extensively renovated structures.
Codes and Standards | Feb 19, 2020
Public is willing to volunteer to maintain green infrastructure
Perceived benefits make residents willing to help public works departments.