Hot Rolled Coil (HRC)

Description

1. Product Overview
Hot Rolled Coil (HRC) is a high-volume, mill-finished flat steel product manufactured through high-temperature rolling of steel slabs above the recrystallization point, delivering exceptional formability and structural integrity for heavy-duty industrial fabrication. Primarily used in construction, automotive structural components, pipe and tube manufacturing, and energy infrastructure, HRC serves as the backbone of global heavy manufacturing supply chains. Its key value proposition lies in offering superior mechanical strength at a lower cost-per-ton compared to cold-rolled alternatives, enabling rapid processing for large-scale projects. Strategically, HRC is a bellwether commodity for industrial activity, and securing reliable, specification-grade supply directly impacts downstream production stability and margin predictability.

2. Key Specifications & Technical Characteristics

• Chemical Composition (per ASTM A36 / JIS G3101 SS400 / EN 10025 S235JR):

  • Carbon (C): ≤ 0.25%

  • Manganese (Mn): 0.60 – 1.20%

  • Phosphorus (P): ≤ 0.04%

  • Sulfur (S): ≤ 0.05%

  • Silicon (Si): ≤ 0.40%

• Grade Options: Commercial (CS-B), Drawing (DS Type B), Structural (SS330, SS400, S235JR, S355JR), High-Strength Low-Alloy (HSLA)

• Physical Characteristics:

  • Form: Coiled sheet

  • Thickness range: 1.5 mm – 20 mm

  • Width range: 600 mm – 2,000 mm

  • Coil inner diameter: 508 mm or 610 mm

  • Coil outer diameter: Up to 2,100 mm

  • Coil weight: 10 MT – 28 MT

  • Surface finish: Black, mill scale (removable via pickling upon request)

• Density: 7.85 g/cm³

• Tensile Strength: 380 – 550 MPa (grade dependent)

• Yield Strength: ≥ 250 MPa (minimum for SS400)

• Packaging: Eye-to-sky or eye-to-horizon stacking with anti-rust VCI paper + plastic film + galvanized steel strapping (4-6 bands per coil) + seaworthy export pallets or skids.

• Shelf Life: 6 months indoor (humidity < 60%); 3 months outdoor (without edge rust degradation); extended to 12 months with factory-applied anti-rust oil.

3. Core Industrial Applications

• Construction & Infrastructure: Structural beams, columns, bridge decking, and steel piling. Outperforms cold-rolled due to lower residual stresses, reducing post-fabrication warping in heavy welds.

• Automotive (Structural): Chassis rails, wheel rims, and heavy truck frames. The as-rolled surface provides superior adhesion for high-build coatings and underbody sealants versus smoother alternatives.

• Pipe & Tube Manufacturing: ERW (Electric Resistance Welded) and LSAW line pipes for oil, gas, and water transmission. Consistent thickness uniformity (+/- 0.1 mm) ensures weld integrity and lowers scrap rates by up to 8% compared to secondary-grade coils.

• Energy & Heavy Equipment: Wind turbine towers, railcars, and storage tanks. Higher toughness at low temperatures (Charpy V-notch tested available) reduces crack propagation risk in cold climates.

4. Competitive Advantages

• Quality Consistency: Mill-certified chemistry per EN 10204 Type 3.1 with automated inline thickness gauge monitoring; deviation tolerances 50% tighter than ASTM minimums.

• Supply Reliability: Backed by integrated primary steel mills (BF-BOF and EAF routes) with 24/7 loading availability; guaranteed fill-or-kill order fulfillment within 7 working days for standard grades.

• Logistics Capability: Direct ex-mill, rail-to-vessel, or containerized LCL shipping via major ports (Rotterdam, Houston, Shanghai, Jebel Ali). In-transit corrosion protection available for high-humidity routes.

• Price Competitiveness: Quarterly fixed-index pricing with no hidden surcharges; volume-backed rebates for annual contracts above 50,000 MT.

• Sustainability: Available with up to 40% recycled content and Environmental Product Declaration (EPD) documentation for green building credits (LEED, BREEAM).

• Technical Support: Dedicated metallurgical engineer for failure analysis, weld procedure qualification (WPS) templates, and just-in-time rolling schedule adjustments.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20MT per single grade and dimension (truckload or LCL container basis).

• Loading Capacity (MT per container):

  • 20-ft standard dry container: 22 MT (max, with edge protectors)

  • 40-ft standard dry container: 28 MT (max, using coil well saddles)

  • Flat-rack container: 35 MT (single coil)

  • Bulk vessel (breakbulk / conventional): 5,000 – 25,000 MT per hold; 50,000 MT minimum for Capesize charter.