Editorial Technical Reference

Hot-Rolled Carbon Steel Plate

This page explains how Hot-Rolled Carbon Steel Plate is classified within Manufacture of Tanks, Reservoirs and Containers of Metal. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Hot-rolled carbon steel plate is a semi-finished industrial material produced through continuous casting and hot rolling.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Hot-Rolled Carbon Steel Plate

Definition
Hot-rolled carbon steel plate is a semi-finished industrial material produced through continuous casting and hot rolling. It serves as the primary raw material for manufacturing welded metal tanks, reservoirs, and containers used in chemical processing, water treatment, and petroleum storage. Supplied in coils or cut-to-length plates, it is formed, welded, and assembled by fabricators into finished containment structures. The material's consistent mechanical properties and weldability make it essential in B2B supply chains for pressure vessel and storage tank construction.

Typical specifications include thicknesses from 6 to 120 mm, widths from 1500 to 4000 mm, and lengths from 6000 to 12000 mm, per GB/T 709. Mechanical properties per GB/T 1591 include yield strength of 235–345 MPa, tensile strength of 370–630 MPa, carbon content of 0.12–0.20%, impact test temperature of -20 to 0 °C, and elongation of 20–30%. Flatness tolerance is ≤5 mm/m per GB/T 709, surface quality Class 1–2 per GB/T 14977, and ultrasonic testing per GB/T 2970 for pressure vessel grades. Density is 7.85 g/cm³, maximum service temperature 400 °C, and minimum service temperature -20 °C for standard grades.

These values are reference ranges; actual product specifications must be confirmed with the supplier for the specific grade and application. Standards listed are procurement references and do not guarantee certification or compliance. Always verify model-specific values and standards with the legal manufacturer or supplier before use.
Working Principle
Hot rolling involves heating carbon steel above its recrystallization temperature and passing it through rollers to reduce thickness and shape the plate. This process refines the grain structure, improving mechanical properties such as strength and ductility. The resulting plate exhibits consistent thickness and weldability, essential for fabricating tanks and pressure vessels. The working principle relies on controlled deformation and cooling to achieve the desired microstructure and performance characteristics.
Common Materials
Carbon Steel, Manganese, Silicon
Technical Parameters
ParameterTypical rangeNotes & selection driver
ThicknessRequired6–120 mmPlate thickness for structural calculationsGB/T 709
WidthRequired1500–4000 mmStandard plate width for fabrication efficiencyGB/T 709
LengthRequired6000–12000 mmCut length for specific tank dimensionsGB/T 709
Yield StrengthRequired235–345 MPaMinimum yield strength for pressure containmentGB/T 1591
Tensile StrengthRequired370–630 MPaUltimate tensile strength for safety marginsGB/T 1591
Carbon Content0.12–0.20 %Carbon percentage affecting weldability and strengthGB/T 1591
Impact Test Temperature-20–0 °CLower temperatures available for special grades.GB/T 1591
Elongation20–30 %Minimum elongation for structural applications.GB/T 1591
Flatness Tolerance≤5 mm/mPer meter, tighter on request.GB/T 709
Surface QualityClass 1–2Class 1 for pressure vessels, Class 2 for general.GB/T 14977
Ultrasonic TestingGB/T 2970Required for pressure vessel grades.GB/T 2970
Density7.85 g/cm³Standard carbon steel density.
Maximum Service Temperature400 °CAbove this, creep becomes significant.
Minimum Service Temperature-20 °CFor standard grades; lower with impact testing.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Steel Alloy Matrix Part
    Provides structural integrity and mechanical properties
    Material: Iron-Carbon Alloy
  • Surface Scale Part
    Oxide layer formed during hot rolling process
    Material: Iron Oxide

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Hot-Rolled Carbon Steel Plate.

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 1000 psi (dependent on thickness, design, and fabrication quality)
other spec: Thickness range: 3mm to 200mm, Standard widths: 1500-3000mm, Standard lengths: 6000-12000mm
temperature: -20°C to 400°C (depending on grade and thickness)
Media Compatibility
✓ Water and aqueous solutions (neutral pH) ✓ Hydrocarbons (oil, diesel, gasoline) ✓ Compressed air and inert gases
Unsuitable: Chloride-containing environments (promotes pitting corrosion)
Sizing Data Required
  • Required design pressure (psi or bar)
  • Operating temperature range (°C)
  • Tank/vessel dimensions (diameter, height, volume)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion-induced pitting and thinning
Cause: Exposure to moisture, acids, salts, or industrial chemicals leading to localized material loss and reduced structural integrity.
Fatigue cracking from cyclic loading
Cause: Repeated stress variations below yield strength causing crack initiation and propagation, often at weld joints, edges, or stress concentrators.
Maintenance Indicators
  • Visible rust bloom, blistering, or flaking indicating active corrosion
  • Audible cracking or popping sounds under load suggesting crack propagation
Engineering Tips
  • Apply protective coatings (epoxy, zinc-rich primers) and implement cathodic protection in corrosive environments
  • Design and maintain smooth transitions at edges and welds to minimize stress concentrations, and conduct regular non-destructive testing (ultrasonic, dye penetrant) for early crack detection

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ASTM A36/A36M - Standard Specification for Carbon Structural Steel EN 10025-2 - Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy structural steels JIS G3101 - Rolled Steels for General Structure

Quoted from the published standard.

Manufacturing Precision
  • Thickness tolerance: +/- 0.25mm to +/- 1.5mm depending on thickness range
  • Flatness tolerance: Maximum deviation of 15mm per meter length
Quality Inspection
  • Tensile Test - Measures yield strength, tensile strength, and elongation
  • Ultrasonic Testing - Detects internal discontinuities and laminations

Manufacturers of Hot-Rolled Carbon Steel Plate

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Shandong Huitong Steel Co., Ltd.
Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Shandong Longhao Steel Group Co., Ltd.
Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
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Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
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Frequently Asked Questions

What thickness ranges are available for this plate?

According to GB/T 709, the typical thickness range is 6 to 120 mm. However, the exact thickness available depends on the supplier and the specific grade. Always confirm the required thickness with the manufacturer or supplier.

What mechanical properties can be expected?

Per GB/T 1591, the yield strength is typically 235–345 MPa, tensile strength 370–630 MPa, and elongation 20–30%. Carbon content ranges from 0.12% to 0.20%. These are reference values; actual properties vary by grade and heat treatment.

Is this plate suitable for pressure vessel applications?

Yes, it is commonly used for pressure vessels and storage tanks. For pressure vessel grades, ultrasonic testing per GB/T 2970 is required. However, compliance with specific standards must be verified with the supplier, as certification is not implied.

What is the maximum service temperature?

The maximum service temperature is typically 400 °C, above which creep becomes significant. For lower temperatures, the minimum service temperature is -20 °C for standard grades, but lower temperatures may be available for special grades. Confirm with the supplier.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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