Caliper Overseas pride itself on being a trusted supplier of premium-quality hot-rolled steel bars. With our commitment to excellence, we provide to diverse industries, offering reliable and durable steel bars for a wide range of applications. Our hot rolled steel bars are manufactured using modern technology and undergo rigorous quality checks to ensure superior performance, durability, and dimensional accuracy. Available in various sizes and grades, our products are tailored to meet the specific needs of construction, manufacturing, and engineering projects worldwide.

Material Composition & Benefits

Hot rolled steel bars are composed of various elements, each contributing to the material's strength, durability, and versatility. The composition includes the following:

  • Chromium (18.0–20.0%):  It toughens and hardens steel, and increases its resistance to corrosion, particularly at high temperatures.
  • Nickel (8%): It gives steel its distinctive properties by changing its crystal structure to an austenitic structure at almost all temperatures.
  • Molybdenum (2-3%): In stainless steel, a higher molybdenum content can increase the steel's solidity and resistance.
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Hot Rolled Steel Bars

This combination ensures exceptional performance of bars, particularly in harsh environments like offshore platforms and chemical processing plants.

Mechanical Properties

Our hot rolled steel bars exhibit the following mechanical properties:

  • Tensile Strength: Up to 621 MPa, offering high resistance to stretching forces.
  • Yield Strength: Approximately 250-450 MPa, ensuring durability under heavy loads.
  • Elongation: 60-70% minimum, which offers flexibility during forming processes.

These attributes make them suitable for demanding industries, including oil & gas, construction, and aerospace.

Hot Rolled Steel Bars vs. Cold Drawn Steel Bars

Hot Rolled Steel Bars are manufactured at high temperatures, making them easier to shape. They have a rough surface finish and are ideal for structural applications requiring strength and durability, such as construction and heavy equipment.

Cold Drawn Steel Bars are processed at room temperature, resulting in a smooth surface, tighter tolerances, and enhanced mechanical properties like higher tensile strength and hardness. They are best suited for precision applications such as automotive components and machinery parts.

The choice between the two depends on the specific application, tolerance requirements, and budget considerations.

Standards Compliance & Industry Certifications

We prioritize global standards compliance to ensure reliability and consistency. Our products meet key certifications such as:

  • ASTM A789, ASTM A790, EN 10088: Compliance with these standards ensures uniformity in manufacturing and suitability for diverse applications.
  • ISO 9001: Guarantees consistent quality management systems, enhancing customer satisfaction.
  • ISO 14001: Demonstrates our commitment to minimizing environmental impact and adhering to environmental regulations.
  • ISO 3834: Ensures welding quality for structural integrity in critical applications.
  • ISO 6892: Establishes tensile testing protocols to confirm mechanical strength.
  • PED (Pressure Equipment Directive): Verifies safety and performance under pressure.
  • ASME (American Society of Mechanical Engineers): Compliance assures material reliability for engineering applications.

These standards and certifications ensure exceptional performance and durability of bars.

Third-Party Testing

We conduct rigorous testing to guarantee performance and reliability:

  1. Positive Material Identification (PMI): Verifies the chemical composition for material compliance.
  2. Hydrostatic Testing: Assures pressure-handling capacity for leak-proof operations.
  3. Radiography Testing: Detects internal defects, ensuring flawless structural integrity.

These tests commit the reliability of our products, particularly for industries requiring precision and safety, such as power generation and shipbuilding.

Manufacturing Process of Hot Rolled Steel Bars

  • Raw Material Preparation: Steel billets or slabs are preheated in a furnace to a temperature of around 1,100°C (2,000°F).
  • Rolling Process: The heated steel passes through a series of rollers, reducing its thickness and forming the desired shape, such as rods or bars.
  • Shaping: Continuous rolling ensures uniform dimensions and removes surface irregularities.
  • Cooling: The rolled steel is cooled using air or water to achieve the required mechanical properties.
  • Cutting to Length: Steel bars are cut to the specified lengths using shearing equipment.
  • Quality Inspection: Final bars undergo testing to ensure compliance with industry standards.
  • Packaging and Delivery: Bars are bundled, labeled, and prepared for shipment to customers.

Applications

  • Oil & Gas: Hot rolled steel is a strong, durable, and ductile material that can be easily shaped and formed, in drilling rigs, pipelines, offshore structures, and tool slides.
  • Aerospace: Lightweight, and fatigue-resistant these bars ensure high-performance applications, these bars are used in Landing gear, Wings, and Jet engines
  • Construction: The high load-bearing capacity and durability of these rolled steel bars make them suitable for structural uses.
  • Metal fabrication: Hot rolled Steel bars a popular choice because they require less force and energy than other methods.Used in brackets, frames, reinforcements, and durable.

Global Reach & Logistics

As a prominent bright bar exporter and hot rolled steel round bar stockist, we ensure timely delivery of products worldwide.

  • Efficient Logistics: We manage global shipping with optimized routes and reliable carriers to ensure timely delivery. Custom packaging protects our bars during transit.
  • Complete Documentation: Every order is accompanied by essential documents, including:
    • Material Test Certificates (MTCs): Verifies chemical and mechanical properties.
    • Quality Assurance Reports: Ensures compliance with standards like ASTM and ISO.
    • Packing Lists & Invoices: Provide shipment details for hassle-free customs clearance.
    • Third-Party Inspection Certificates: Guarantee product authenticity and quality.

Our streamlined processes ensure customer satisfaction and trust worldwide.

Partner with us for precision-engineered Hot Rolled Steel Bars in various materials. Our expertise, stringent quality control, and customer-centric approach make us a trusted supplier of bars globally. Contact us today!

Hot Rolled Steel Bars & Rods Specification

Size range Width: 40 mm to 100 mm, Thickness: 4.76 mm to 25.4 mm
Size Tolerances H11 and ASTM A 484
Length 2 metres - 6 metres ( 8 feet to 20 feet)
Length Tolerance Available in special cut to length bars in tolerance -0/+10 mm (-0/+0.5 inch)
Surface Finish Cold Drawn and Belt Polished Condition
Heat Treatment Solution Annealed
Grades AISI: 303, 304L, 316L, 316Ti, 321
DIN: 1.4305, 1.4307, 1.4404, 1.4571, 1.4541

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Processing Of Square Bar

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Heating, rolling & forming
Heating, rolling & forming
Quenching
Quenching
Self-Tempering
Self-Tempering
Atmospheric Cooling
Atmospheric Cooling

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Bars Cutting

Products cut include Round bars, flat bars, hex bars, square bars, tubing and hollow bars, Pipe, angles, channels, beams and tees. Thickness range is 1/16″ to 28″ diameter

Bars Production Cutting

We can provide production cutting for product diameters up to 4″. We utilize production equipment to achieve these Hexagon cuts with tight tolerances.

Bars Polishing

Products polished included all tubular products, with OD & ID polishing available, round bars, square bars, hex & flat bars, angles, uneven leg angles, beams, and other shapes.

“View Bars Dimensions & Prices, Contact us today to know Hot Rolled Steel Bars, Hot Rolled Steel Bars, Cold Drawn Flat Bar hex bars best offers & prices.”

Hot Rolled Steel Bars & Rods Ready Stock

Hot Rolled Steel Bars Applications and Uses

  • Shaft Making
  • Automobiles
  • Electric Motors & Pumps
  • Railways
  • Mining
  • Miscellaneous Fabrication
Shaft Making

Hot Rolled Steel Bars in Shaft Making

Automobiles

Hot Rolled Steel Bars in Automobiles

Electric Motors & Pumps

Hot Rolled Steel Bars in Electric Motors & Pumps

Railways

Hot Rolled Steel Bars in Railways

Mining

Hot Rolled Steel Bars in Mining

Miscellaneous Fabrication

Hot Rolled Steel Bars in Miscellaneous Fabrication

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