Peeled Round Bars are precision-engineered steel bars produced by removing the outer layer of hot-rolled or forged bars through a peeling process. This results in a smooth, uniform surface with enhanced dimensional accuracy and reduced surface defects. Riddhi Siddhi Impex is a leading manufacturer and supplier of Peeled Round Bars in India, offering high-quality products for industries that require precision and strength..
Riddhi Siddhi Impex offers Peeled Round Bars in a wide variety of materials, including carbon steel, alloy steel, stainless steel (304, 316, 410, 420), duplex and super duplex steels, Inconel, Monel, and titanium. These bars are available in multiple grades to meet the rigorous demands of engineering, automotive, construction, and industrial applications.
The peeling process involves using precision peeling machines to remove the outer layer of a round bar, producing a smooth and concentric surface. This process enhances the straightness, roundness, and surface finish while retaining the material's mechanical properties. Riddhi Siddhi Impex ensures all Peeled Round Bars undergo strict quality control, including chemical analysis, hardness testing, and dimensional inspections in compliance with ASTM, DIN, and JIS standards...
Peeled Round Bars offer improved mechanical properties, including high tensile strength, yield strength, and fatigue resistance. The peeling process removes surface imperfections, reducing the risk of cracks and defects, which ensures better performance in critical applications. Their precision and smooth surface make them ideal for machining and further processing without the need for extensive finishing..
The precision and high-quality surface of Peeled Round Bars make them suitable for various industrial applications. They are widely used in automotive components, shafts, axles, fasteners, gears, hydraulic systems, precision machinery, structural components, and petrochemical equipment. Industries that demand high-strength, corrosion-resistant, and dimensionally accurate bars prefer Peeled Round Bars..
| Product Name | PP Coated Carbon Steel Pipes |
|---|---|
| Manufacturer | Riddhi Siddhi Impex |
| Base Material | Carbon Steel (ASTM A106 / A53 / API 5L) |
| Coating Material | Polypropylene (PP) – Single or 3-Layer (3LPP) |
| Standard | ISO 21809-1 / DIN 30678 / ASTM / API |
| Size Range | 1/2” NB to 48” NB |
| Wall Thickness | Sch 20 to Sch 160 / XXS |
| Length | Single Random, Double Random, or Cut Lengths |
| Coating Thickness | 1.8 mm to 4.5 mm (Customizable) |
| Pipe Ends | Plain End (PE), Beveled End (BE), or Threaded |
| Form | Seamless, Welded, ERW, or LSAW |
| Applications | Oil & Gas Pipelines, Water Supply, Chemical Transport, Marine Projects |
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.23 Max |
| Manganese (Mn) | 0.30 – 1.06 |
| Phosphorus (P) | 0.05 Max |
| Sulfur (S) | 0.045 Max |
| Silicon (Si) | 0.10 – 0.35 |
| Copper (Cu) | 0.40 Max |
| Nickel (Ni) | 0.40 Max |
| Chromium (Cr) | 0.40 Max |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength (0.2% offset) | ≥ 240 MPa |
| Elongation | ≥ 20% |
| Hardness | ≤ 95 HRB |
| Impact Resistance | Excellent (Due to PP Coating) |
| Coating Adhesion | Strong Adhesion per ISO 21809-1 |
| Nominal Pipe Size (NB) | Outside Diameter (mm) | Wall Thickness (mm) | Length |
|---|---|---|---|
| 1/2" | 21.3 | 2.77 | Up to 12 m |
| 1" | 33.4 | 3.38 | Up to 12 m |
| 2" | 60.3 | 3.91 | Up to 12 m |
| 4" | 114.3 | 6.02 | Up to 12 m |
| 6" | 168.3 | 7.11 | Up to 12 m |
| 10" | 273.1 | 9.27 | Up to 12 m |
| 16" | 406.4 | 12.70 | Up to 12 m |
| Standard | Grade |
|---|---|
| ASTM | A106 Grade B / A53 Grade B |
| API | 5L Grade B / X42 / X52 |
| EN | EN 10216 / EN 10224 |
| DIN | St 37.2 / St 52.3 |
| BS | 3601 / 3602 |
| Standard | Description |
|---|---|
| ASTM A106 / A53 | Standard Specification for Carbon Steel Pipe for High-Temperature and Pressure Service |
| API 5L | Specification for Line Pipe |
| ISO 21809-1 | External Polypropylene Coatings for Buried or Submerged Pipelines |
| DIN 30678 | 3-Layer Polypropylene Coating for Steel Pipes |
| Type | Description |
|---|---|
| 3LPE Coated Pipes | Three-layer polyethylene coated pipes for enhanced corrosion protection |
| FBE Coated Pipes | Fusion Bonded Epoxy coated pipes for superior adhesion and corrosion resistance |
| Internal Epoxy Coated Pipes | Epoxy-coated internal surfaces for smooth fluid flow |
| PE Coated Pipes | Polyethylene-coated carbon steel pipes for underground applications |
Riddhi Siddhi Impex provides Peeled Round Bars in custom diameters and lengths to meet specific project requirements. Customers can request special tolerances, surface finishes, or additional machining services. These value-added services ensure that industries receive bars that are ready for immediate use in manufacturing or construction projects..
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