Nucor Steel Marion

What Nucor Steel Marion does

Nucor Steel Marion is a U.S. micro-mill operating within Nucor Corporation's specialty steel platform, producing steel products for the highway, construction, and agricultural industries from a base in Marion. The operation uses electric arc furnace (EAF) steelmaking fed with recycled scrap metal to manufacture low-embodied carbon, FHWA-approved steel highway hardware. Its product portfolio spans signpost foundations (RIB-BAK U-channel posts at 80,000 psi minimum yield), breakaway coupling systems (LAP-SPLICE, SLIP-SAFE, SLIP-SAFE SUPREME), cable barrier systems (NU-CABLE Low- and High-Tension with NU-TEN end treatments), guardrail systems (NU-GUARD-27, NU-GUARD-31, NU-FLEX), delineators (BEND-BAK), T-posts (NU-POST) and rust-resistant powder coating (POWDER-SHELL). Core certifications include FHWA approval and compliance with NCHRP 350 and MASH TL-3/TL-4 crash-test criteria, positioning the portfolio as qualified infrastructure hardware for federally funded roadway projects.

Name

Nucor Steel Marion

Legal name

Nucor Corporation

Website

https://nucorhighway.com

Company type

Public

Operating status

Operating

Headcount range

11–50 employees

Short description

Nucor Steel Marion is a U.S. micro-mill that uses electric arc furnace technology with recycled scrap to manufacture FHWA-approved, low-embodied carbon steel highway hardware — including RIB-BAK signposts, NU-CABLE/NU-GUARD barriers and breakaway systems — sold via direct sales to state DOTs, contractors and construction firms.

Ownership category

akta.pro rank

Product category

Highway Safety Steel Products

NAICS

Iron and Steel Mills and Ferroalloy Manufacturing (3311)

SIC

Steel Works, Blast Furnaces & Rolling & Finishing Mills (3310)

akta.pro primary industry

Hot Rolling & Primary Mills (Plate, Hot-Rolled Coil/Sheet, Strip) (IMAKABAE)

akta.pro secondary industry

Coated & Plated Steel (Galvanized, Galvalume, Tinplate, Electrogalvanized, Color-Coated) (IMAKABAG)

Keywords

• Steel highway products
• Guardrail systems
• Cable barrier systems
• Signpost breakaway systems
• Structural steel manufacturing

Headquarters

HQ city

Marion

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Steel Highway Products: Manufacture and sale of steel highway products including signposts, guardrails, cable barriers, and breakaway systems. Products are manufactured from recycled steel using electric arc furnace (EAF) process, resulting in Federal Highway Administration (FHWA)-approved, low-embodied carbon steel.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Nucor Steel Marion is a micro-mill that manufactures and sells FHWA-approved specialty steel products for highway and transportation infrastructure using the Electric Arc Furnace (EAF) process with recycled metals. The product portfolio includes breakaway signpost systems, strong post guardrails, low- and high-tension cable barriers, flexible delineators, steel T-posts, and protective powder coatings, sold primarily to government transportation departments, contractors, and construction firms.

Product overview

Nucor offers a comprehensive portfolio of steel highway products manufactured from recycled steel using electric arc furnace (EAF) steelmaking, producing FHWA-approved low-embodied carbon steel. The product line centers on RIB-BAK® U-Channel posts as the foundational component, which integrate with multiple breakaway hardware systems (LAP-SPLICE™, SLIP-SAFE®, SLIP-SAFE® SUPREME) for sign support applications. Cable barrier systems include NU-CABLE® Low-Tension (TL-3) and NU-CABLE® High-Tension (TL-3/TL-4) for median and roadside safety. Guardrail offerings comprise NU-FLEX® and NU-GUARD®-31 (31" height, no offset blocks) and NU-GUARD®-27 (27" height, standard W-beam). Supporting products include BEND-BAK® delineators, NU-POST™ T-posts, and End Treatments (NU-TEN®). Customization options include POWDER-SHELL® powder coating and hot-dipped galvanizing.

Differentiator

Problem solved

Functional benefit

Brands

• Aeos®: The only domestic ASTM A913 high-strength structural steel.
• Econiq™
• Elcyon®
• Invincia™
• LAP-SPLICE™
• SLIP-SAFE®
• SLIP-SAFE® SUPREME
• NU-CABLE®
• NU-TEN®
• NU-FLEX®
• NU-GUARD®-31
• NU-GUARD®-27
• RIB-BAK®
• BEND-BAK®
• NU-POST™
• POWDER-SHELL®

Products and services

• RIB-BAK® U-Channel Posts The strongest U-channel post on the market with 80,000 psi minimum yield strength (80-100 ksi), used for traffic sign supports, agricultural applications, and breakaway systems. FHWA-approved and NCHRP 350 compliant, available in seven sizes with POWDER-SHELL coating or hot-dipped galvanized finishes.
• LAP-SPLICE™ Breakaway System Ground-mounted breakaway signpost system for SP-80 RIB-BAK U-channel. Simple, economical system requiring only two special bolts and a bar spacer to join top post to base post, designed for crashworthy ground-mounted breakaway applications.
• SLIP-SAFE® Breakaway System Durable, safe, and reusable breakaway system for small sign supports in high-impact areas. Designed for quick installation and reinstallation, handling sign panels up to 42 sq. ft. using three 4 lbs./ft. RIB-BAK posts within a 7 ft. span.
• SLIP-SAFE® SUPREME Breakaway System 360-degree breakaway system for mid-size sign supports that can be installed and reinstalled quickly and cost-effectively without requiring concrete support in strong soil conditions.
• NU-CABLE® Low-Tension Cable Barrier (TL-3) Low-tension cable barrier system for guide rail applications where deflection needs are 12 ft. or greater. Features three 3x7 steel cables supported by 4 lb. RIB-BAK U-channel posts with up to 100 ksi yield strength, TL-3 crash-test proven.
• NU-CABLE® High-Tension Cable Barrier (TL-3 / TL-4) High-tension cable barrier system offering TL-3 and TL-4 crash-test proven protection in both median and right-side guide rail applications, with deflection ranges from 5.25' to 9.81'. Repairable in as quickly as 30 minutes after impact.
• NU-TEN® End Treatment Terminal end used to anchor NU-CABLE high-tensioned 3 or 4 cable barriers, designed and tested to meet NCHRP 350 Test Level 3 (TL-3) evaluation criteria with FHWA-approved end treatments.
• NU-FLEX® Flexible Barrier System Flexible barrier system available for use without offset blocks for 31" rail height applications. Crashworthy to MASH Test Level 3 (TL-3) criteria, FHWA-eligible for roadside applications with design speeds up to 65 mph.
• NU-GUARD®-31 Strong Post Guardrail Strong post guardrail system for use without offset blocks for 31" rail height applications. Crashworthy to NCHRP 350 (TL-3 and TL-4 compliant) and MASH (TL-3 compliant) criteria, approved for roads with design speeds up to 65 mph.
• NU-GUARD®-27 W-Beam Guardrail Standard W-beam strong post guardrail system for use with offset blocks for 27" rail height applications, meeting NCHRP 350 criteria (TL-3 compliant).
• BEND-BAK® Delineator Posts Mild-carbon steel flexible delineator posts that bend without breaking, combining steel strength with flexibility of plastic and fiberglass. FHWA-approved and priced three to four times less than plastic or fiberglass alternatives.
• NU-POST™ Steel T-Posts Easy-to-install steel T-posts for fencing, made from recycled metals and manufactured to ASTM A702 specification for strength and durability across agricultural and highway fencing applications.
• POWDER-SHELL® Protective Coating Rust-resistant powder coating available for all RIB-BAK sizes in green, black, yellow, white, orange, and brown colors. Provides superior protection, durability, and appearance at the price of paint, meeting all NCHRP 350 requirements.

Quantifiable outcome

• NU-CABLE High Tension barrier can be repaired after being hit in as quickly as 30 minutes
• +2 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Direct peers

• Road Systems Inc. Specialist manufacturer of guardrail end terminals, crash cushions, and NCHRP 350 / MASH-tested safety hardware. Direct competitor for guardrail and barrier system business at state DOTs.
• Lindsay Corporation (Soleno): Manufactures roadway safety hardware and infrastructure products including barriers, delineators, and crash cushion systems. Competes with Nucor Marion in cable barrier and roadside safety categories.
• Valmont Industries: Diversified manufacturer of highway safety products including signposts, lighting and traffic structures, and steel poles. Directly overlaps with Nucor Marion's highway hardware product line and competes for state DOT specifications.
• Trinity Industries (Trinity Highway Products): Leading North American producer of guardrails, end terminals, cable barriers, and other roadside safety hardware. The most direct head-to-head competitor in the Nucor Marion product portfolio, especially in NU-CABLE® and NU-GUARD® categories.

Broad incumbents

• Steel Dynamics: Large U.S. EAF-based steelmaker with broad product portfolio. Competes with Nucor upstream on flat-rolled and long products and could supply or vertically integrate into similar highway hardware applications.
• Cleveland-Cliffs: Largest flat-rolled steel producer in North America with integrated and EAF operations. Competes broadly for infrastructure steel demand and is increasingly active in downstream high-end steel products.
• United States Steel Corporation: Iconic integrated and EAF steel producer with a broad infrastructure and construction product portfolio. Competes with Nucor for highway and infrastructure steel demand in the U.S.
• ArcelorMittal: World's largest steelmaker with global integrated and EAF operations supplying construction, infrastructure, and highway applications. Sets competitive benchmarks on scale, pricing, and sustainability for the broader steel industry.
• Commercial Metals Company (CMC): Vertically integrated EAF steelmaker and rebar fabricator with significant U.S. operations. Competes with Nucor in EAF steel production and downstream construction-related steel products.

Regional players

• Hill & Smith Holdings: UK-based manufacturer of infrastructure products including highway safety barriers, lighting columns, and structural steel. Comparable product portfolio to Nucor Marion, serving primarily European and select international markets rather than competing directly in the U.S.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights5 records

Customer concentration

• Xtwitter.com/Nucor
• YouTubeyoutube.com/@Nucor_Corporation
• Facebookfacebook.com/NucorCorp
• LinkedInlinkedin.com/company/nucor-corporation
• Instagraminstagram.com/nucorcorporation

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries25 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Nucor Steel Marion