What question did this study set out to answer?

To model global in-use steel stocks and forecast future steel demand through 2050 based on dynamic stock and flow principles.

July 22, 2010Environmental Science & Technology

Outlook of the World Steel Cycle Based on the Stock and Flow Dynamics

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To model global in-use steel stocks and forecast future steel demand through 2050 based on dynamic stock and flow principles.
Applied dynamic material flow analysis (MFA) across 42 countries to quantify historical in-use steel stocks and flows up to the end of 2005.
Estimated future steel stock growth and demand up to 2050 using a 'stocks drive flows' dynamic model linked to national economic growth projections.
Global in-use steel stock reached 12.7 billion tonnes in 2005 after doubling over 25 years, with construction accounting for 60% and vehicles accounting for 10%.
Steel stock in construction and vehicles is projected to reach 55 billion tonnes by 2050, driven primarily by a 10-fold expansion in Asia.
Annual steel demand is projected to peak at 1.8 billion tonnes in 2025, after which construction demand declines and vehicle manufacturing demand expands alongside building replacements.

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Implication

Dynamic material flow analysis models global steel stock dynamics through 2050 across 42 countries, indicating a major demand transition toward vehicle manufacturing.

Cite This Study

Hatayama et al. (2010) studied this question.

synapsesocial.com/papers/6a10f686326831f8a26495e6 https://doi.org/10.1021/es100044n

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Implication

Dynamic material flow analysis models global steel stock dynamics through 2050 across 42 countries, indicating a major demand transition toward vehicle manufacturing.

Outlook of the World Steel Cycle Based on the Stock and Flow Dynamics

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Discussion

Implication

Cite This Study

Outlook of the World Steel Cycle Based on the Stock and Flow Dynamics

Key Points

Discussion

Implication

Cite This Study

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