Global steel rebar demand is forecast on a 4.4% to 5.89% CAGR through 2030, with the market valued between USD 166.3 billion and USD 322.22 billion in 2026 depending on the analyst's scope [S1][S2][S3][S5][S6].
The variance reflects coverage differences between rebars-only slices and broader long-product scopes, but the convergence point is clear: APAC holds 53% to 65% of incremental growth, the deformed type accounts for 65% to 72% of volume, and the electric arc furnace (EAF) route is the fastest-growing process as green-steel mandates tighten [S1][S2][S5].
Market size and forecast spread, 2026-2030
Five independent forecasts bracket the 2026-2030 trajectory. Technavio sizes the rebars market at USD 257.7 billion in 2025, growing at 4.7% CAGR to add USD 66.2 billion of opportunity by 2030 [S1]. Persistence Market Research starts at USD 166.3 billion in 2026 and reaches USD 232.4 billion by 2033, a 4.9% CAGR [S2]. Fortune Business Insights projects growth from USD 241.68 billion in 2026 to USD 381.98 billion by 2034, a 5.89% CAGR and the highest growth rate in the cohort [S3]. MarketsandMarkets pegs the market at USD 202.27 billion in 2026 rising to USD 250.38 billion by 2031, a 4.4% CAGR [S6]. Precedence Research values 2025 at USD 307.08 billion, 2026 at USD 322.22 billion, and 2035 at USD 495.08 billion, a 4.89% CAGR [S5].
For procurement teams this means a defensible planning range of USD 166-322 billion for 2026 and USD 232-382 billion for the 2030-2034 horizon. The lower-bound numbers (Persistence) cover new merchant rebar shipments, while the higher-bound numbers (Fortune, Precedence) bundle downstream long products and value-added processing. For rebar specification and selection criteria the USD-per-tonne moves, not the product class, so both bounds inform pricing leverage.
Process mix: EAF displacement of basic oxygen steelmaking
Electric arc furnace (EAF) production is set to represent roughly 58% of global rebar manufacturing by 2026, versus basic oxygen steelmaking (BOF) at the balance [S2]. EAF generates approximately 0.4-0.6 tonnes of CO2 per tonne of steel, an order of magnitude below the integrated BOF route, and aligns with scrap-based feedstock and green-procurement mandates [S2]. Precedence corroborates the directional shift, with the EAF segment projected to grow at the fastest rate over 2026-2035 while oxygen steelmaking dominated 2025 [S5].
The displacement has direct equipment implications. Mills converting to EAF need higher-capacity scrap handling, higher-voltage transformers (typically 80-150 MVA for 100-150 tonne furnaces), and ladle metallurgy for residual element control. Rebar produced via EAF typically tolerates higher copper and tin residuals, which can affect weldability and bend performance, so buyers specifying ASTM A615 Grade 60 or equivalent should confirm residual chemistry. For shops that cut and bend rebar on site, the move toward EAF feed means a slight shift in ductility curves, with elongation at fracture typically 2-4 percentage points higher for EAF-Grade 60 than legacy BOF material of identical tensile strength.
Regional demand: APAC dominance, India the growth engine
APAC commands 53% to 65% of global rebar market revenue, anchored by China, Japan, and India [S1][S2][S5].
Within APAC, India's National Infrastructure Pipeline is sized at USD 1.4 trillion, and China's per-tonne rebar export pressure continues to distort global pricing, with OECD reporting that world steel trade is being "flooded" by China and other excess-capacity regions, with trade actions "increasingly being circumvented" [S4][S5]. For the Middle East and Africa, GCC megaprojects (NEOM, Saudi affordable housing) and Sub-Saharan urbanization drive the fastest regional CAGR, with Persistence tagging MEA as the fastest-growing region in 2026-2033 [S2]. The US market is forecast at USD 6.59 billion in 2024 reaching USD 9.13 billion by 2030, a 5.43% CAGR, with infrastructure-spending tailwinds from federal CHIPS and IIJA appropriations [S7].
Product segmentation: deformed dominance and grade shift
Deformed rebar holds 65% to 72% of global volume, driven by building code requirements for seismic performance and by surface-deformation-induced bond strength that can reduce reinforcement congestion by up to 15% compared to mild bar [S1][S2]. The thermo-mechanical treatment (TMT) process is the dominant production route for deformed bar, with the TMT quench-and-temper sequence delivering the characteristic ferrite-pearlite core with a tempered martensite outer rim.
By grade, ASTM/BS Grade 60 (420 MPa yield) and Grade 75 (520 MPa) are the highest-volume categories, with Grade 80 and micro-alloyed grades growing fastest in high-rise and seismic zones [S1]. By bar size, the #4 (12 mm) and #5 (16 mm) imperial designations lead volume, with #5 growing fastest as mid-rise residential and light-commercial construction shifts to higher-strength schedules [S5]. For spec-driven buyers, the practical comparison is: Grade 40 (280 MPa) for non-structural ties and dowels, Grade 60 (420 MPa) for general RC, Grade 75 (520 MPa) for high-rise columns and seismic shear walls, Grade 80 (550 MPa) for bridge piers and prequalified moment-frame special moment frames.
End-use and application: infrastructure, housing, the long tail
End-use splits across residential, commercial, and public infrastructure, with infrastructure (transportation, utilities, energy) the largest end-use segment in 2025-2026 and housing the fastest-growing segment through 2035 [S1][S5]. The Global Infrastructure Hub estimates cumulative global infrastructure investment demand above USD 94 trillion by 2040, while the IEA projects global clean-energy infrastructure investment to roughly double by 2030, both of which pull rebar demand for wind farm foundations, solar racking, and grid-related civil works [S5].
For rebar benders and cutters spec'd on housing-job volumes, the demand picture favors 12-20 mm bar diameters, Grade 60, with bend schedules in the 4-8 bar/minute range on automatic benders. For infrastructure jobs that drive the higher growth rates, equipment spec shifts toward 20-32 mm bar diameters, Grade 75, and rebar couplers for lap-replacement in column-slab joints and seismic connections where lap splicing is restricted by code.
Raw-material and pricing volatility
Raw-material price volatility is the primary supply-side risk, with iron-ore and ferrous-scrap price swings capable of increasing rebar production cost by over 20% within a single quarter [S1]. The downstream effect is bid-price volatility of USD 30-80 per tonne on Grade 60 rebar in 2025-2026, depending on region and mill inventory positioning. Mills typically hedge 50-70% of forward iron-ore exposure through 3-6 month supply contracts, but spot exposure on the residual 30-50% drives the bid-price spread that EPC contractors and rebar fabricators must absorb [S1].
For buyers, the practical implication is contract structuring: 6-12 month fixed-price mill agreements for 70-80% of forecast volume, with the residual 20-30% on quarterly price reset. This reduces exposure to single-quarter spikes while preserving the upside capture on falling scrap prices. For rebar straightening and cutting lines spec'd at service centers, the volatility drives inventory-turn targets of 4-6 weeks rather than the 8-12 week turns common in stable-price markets.
Sourcing, standards, and procurement signal
Spec-driven buyers should anchor on ASTM A615/A615M (carbon steel deformed and plain billet-coarse bars for concrete reinforcement), ASTM A706/A706M (low-alloy deformed bars for seismic applications), BS 4449 (2005+A3:2016 for Grade 500), and ISO 6935-2 (ribbed bars for concrete reinforcement), with project-specific certification to ACI 318, Eurocode 2 (EN 1992-1-1), or IS 1786 depending on jurisdiction. The dominant consensus in the OECD outlook is that global steel demand will rise 0.4% to 1.8 billion metric tonnes in 2026, then grow only 0.9% per year through 2030, with growth concentrated in India, ASEAN, MENA, and Sub-Saharan Africa, and with China demand continuing its long-term structural decline [S4].
For related reading on the upstream ferrochrome and stainless-steel pull that intersects rebar-spec stainless applications, see the Ferrochrome Demand 2026-2030 outlook.