Phosphor Bronze Pb1 is a type of bronze alloy known for its excellent strength, corrosion resistance, and unique combination of properties. These qualities make it a valuable material for various industrial applications, and it is often available in the form of round bars.

Phosphor Bronze PB1 Rod, PB1 Bronze Round Bar, PB1 Phosphor Bronze Round Bar, Phosporous Bronze C51000 Round Bar Manufacturers in India.

Phosporous Bronze PB1 Round Bar
  • UNS


  • Alloy Number



    ASTM B139 / SB139


Phosporous Bronze PB1 Square Bar, UNS C51000 Round Bar, C51000 Phosporous Bronze Hex Bar, Phosporous Bronze PB1 Flat Bar, Phosporous Bronze PB1 Rod Manufacturers in India

Composition: Phosphor Bronze Pb1 is primarily composed of copper, tin, and phosphorus. The typical composition includes approximately 89% copper, 9-10% tin, and a small amount of phosphorus, usually less than 1%. The addition of phosphorus improves the alloy's strength and wear resistance.

Strength and Toughness: One of the key advantages of Phosphor Bronze Pb1 is its high strength and toughness. This alloy offers excellent mechanical properties, making it suitable for applications that require durability, load-bearing capacity, and resistance to deformation. It is often used in heavy-duty machinery and equipment components.

Corrosion Resistance: Phosphor Bronze Pb1 exhibits good resistance to corrosion and oxidation. This property is particularly important in applications where the material may be exposed to harsh or corrosive environments, such as marine and chemical processing equipment.

Wear Resistance: Phosphor Bronze Pb1 is known for its excellent wear resistance, making it ideal for applications involving sliding or abrasive wear. It can withstand continuous friction and contact, which is essential for components like bushings, bearings, and gears.

ASTM B139 Phosporous Bronze PB1 Round Bars, Phosporous Bronze PB1 Bright Bar, PB1 Phosporous Bronze Bronze Rectangular Bar, Phosporous Bronze PB1 Bar Manufacturers in India.

fevicon-logo Phosporous Bronze PB1 Round Bar Specifications

Standard ASTM B139 / ASME SB139
Hex Bar Size 2-100mm A/F
Round Bar Size Diameter: 3-~800mm
Flat Bar Size Thickness: 2 -100mm
Width: 10 to 500mm
Square Bar Size 4 to 100mm
Rectangles Size 33 x 30mm to 295 x 1066mm
Tolerance H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Finish Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black
Surface Hot Rolled Pickled, Bright, Sand Blasting Finished, Cold Drawn, Hairline,Polished
Form Rod, Round, Flat Bar, Precision Ground Bar, Square, Round Rod, Triangle, Hollow, Rectangle, Threaded, Hex (A/F), Profiles, Half Round Bar etc.

Machinability: Although not as easily machinable as leaded tin bronze, Phosphor Bronze Pb1 can still be machined with the right tools and techniques. Its excellent mechanical properties often compensate for its slightly lower machinability.

Applications: Phosphor Bronze Pb1 round bars find applications in a wide range of industries, including aerospace, automotive, marine, and industrial manufacturing. Common uses include bushings, bearings, electrical connectors, valve components, and gears, where a combination of strength, corrosion resistance, and wear resistance is required.

Availability: Round bars made of Phosphor Bronze Pb1 are readily available in various diameters and lengths. They can be sourced in both standard sizes and custom dimensions to meet the specific requirements of different projects and applications.

Quality Assurance

To preserve the high standards of our selection of industrial round bar, we have always adhered to a systematic quality management process.

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Our staff of experts is vibrant and talented, and they have always been our largest supporters and contributors to our success. Our vision is to create a world of round bar.

fevicon-logo Phosporous Bronze PB1 Round Bar Chemical Composition

Alloy number Sn P Pb Zn Cu+Sn+P
C5191 5.5-7.0 0.03-0.35     ≥99.5
C5441 3.0-4.5 0.01-0.50 3.5-4.5 1.5-4.5 ≥99.5

fevicon-logo Mechanical Properties of Phosporous Bronze PB1 Bar

Grade B.S.
1400: 1985
2% PS
N/mm Min
Tensile Strength
N/mm Min
% Min
Hardness Min
PB1 89/10/01 130 250 5 60
PB1 88/12 140 260 7 80
PB1 90/10 130 250 5 60
PB1 90.5/9.5 130 240 5 80
LPB-1 87/8/2/3 80 175 7 60
Pb2 88/12 120 195 5 60

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fevicon-logo Types of Phosporous Bronze PB1 Round Bar

Hex Bar

Phosporous Bronze PB1 Hex Bar

Flat Bar

Phosporous Bronze PB1 Flat Bar

Square Bar

Phosporous Bronze PB1 Square Bar

Rectangular Bar

Phosphor Bronze PB1 Rectangular Bar

Round Bar Manufacturers In India

  • Hardness Test

  • Chemical and Physical Testing

  • Tensile test on metals - ISO 6892-1

  • Universal Testing Machine

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Phosporous Bronze PB1 Square Bar Phosporous Bronze PB1 Round Bar Manufacturer in India
Phosporous Bronze PB1 Polished Bar 12mm PB1 Phosphor Bronze Rod
UNS C51000 Round Bar Phosporous Bronze PB1 Bar Manufacturer in Mumbai

fevicon-logo Phosporous Bronze PB1 Rods Application Industries

Aerospace Industry
Nuclear Industry
Medical Industry
Marine Industry
Mining Industry
Automotive Industry
Construction Industry
Manufacturing Industry
Round Bar