Grade: C5191, C5210, C5102, C5212, etc.

Thickness: 0.15mm - 4.0mm

Width: 8mm - 610mm

Temper: 1/2H, 3/4H, H, EH, SH

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Shanghai Metal Corporation is a leading Bronze Strip (Phosphor Bronze Strip) manufacturer and supplier.

Bronze is the earliest alloy in the history of metal smelting. It is an alloy of tin or lead added to pure copper. Compared with pure copper, bronze has high strength and low melting point. Bronze has the characteristics of low melting point, high hardness, strong plasticity, wear resistance, corrosion resistance, bright color, etc. It is suitable for casting various instruments, mechanical parts, bearings, gears, etc.

Phosphor bronze is a type of bronze with tin and phosphorus as the main alloying elements. Contains 2 to 8% tin, 0.1 to 0.4% phosphorus, and the balance is copper. It is mainly used as an abradable part and an elastic element in the industry. Plates and strips are used for electronic and electrical device springs, switches, lead frames, connectors, vibrating plates, bellows, fuse clips, bushings, etc., especially for springs that require high performance flexibility. Castings are used in gears, worm gears, bearings, bushings, sleeves, blades, and other general mechanical components.We also provide Bronze Sheet.

If you want to know more about our copper products or Bronze Strip (Phosphor Bronze Strip) price please feel free to contact us, we will reply you within 24 hours.

1) Grade: C5191, C5210, C5102, C5212, etc.

2) Chemical Composition:

a) C5191: Cu + Tin + P >99.5% Tin: 4.5-5.5% P: 0.03%-0.35%

b) C5210:Cu + Tin + P >99.7% Fe < 0.1% Pb < 0.05% Zn < 0.2% Tin: 7.0-9.0% P: 0.03%-0.35%

3) Temper: 1/2H, 3/4H, H, EH, SH

4) Thickness: 0.15mm - 4.0mm

5) Width: 8mm - 610mm

1）Elongation rate ≥25%

2）Modulus of elasticity:125MPa

3）Yield strength:≥90% tensile strength

4）Fatigue performance

5）Plating performance

6）Excellent welding performance

7）Excellent cold workability, deep drawing properties, flexural properties

1.Melting Furnace

2.Continuous Casting Line & Slab Casting Line

3.Hot Rolling Mill

4.Reversing Cold Rolling Mill

5.Finish Rolling Mill

6.Pickling Line

7.Degreasing Line

8.Annealing Facility

9.Tension Leveler Line

10.Roll Grinding Machine

1) Diaphragms

2) Bellows

3) Fuse clips

4) Electronic machine

5) Switches

6) Relays

7) Connectors used in machines of electronics

8) Communication

9) Measurement

10) Electrical Contacts

Manufacturing of Bronze Strip (Phosphor Bronze Strip)

Packaging of Bronze Strip (Phosphor Bronze Strip)

Shanghai Metal Products are packed and labeled according to the regulations and customer's requests. Great care is taken to avoid any damage which might be caused during storage or transportation. In addition, clear labels are tagged on the outside of the packages for easy identification of the product I. D. and quality information.

1) Shanghai Metal Standard

2) Customization

Q1.What information do you need for a custom quotation?

A: To provide an accurate quotation, we need the specific grade (e.g., C5191, C5210), temper (1/2H, 3/4H, H, EH, SH), thickness (between 0.15mm and 4.0mm), width (between 8mm and 610mm), and your target order quantity.

Q2.How long does sample preparation take?

A: For standard specifications in stock, samples can be dispatched within 3-7 working days. For custom tempers or specifically slit widths, preparation may take up to 10-15 working days.

Q3.What factors should I consider when choosing Phosphor Bronze Strip tempers?

A: You should base the temper on your manufacturing process. For deep drawing or severe flexural processing, softer tempers like 1/2H are recommended. For products requiring high spring force and rigidity, such as switches and fuse clips, Hard (H) to Extra Hard (EH) tempers are ideal.

Q4.What is the difference between C5191 and C5210 grade?

A: The main difference lies in the chemical composition. C5191 contains 4.5-5.5% Tin, while C5210 contains a higher Tin content of 7.0-9.0%. The higher tin content in C5210 provides increased hardness, higher yield strength, and superior spring properties, making it more suitable for high-performance electronic connectors.

Q5.What are the main production processes ensuring the quality of the strip?

A: We use a strict 10-step process, starting from the Melting Furnace and Continuous Casting Line, followed by Reversing Cold Rolling and Finish Rolling. Crucial steps like the Annealing Facility and Tension Leveler Line ensure uniform temper, excellent flexural properties, and precise flatness across the strip.

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Bronze Strip (Phosphor Bronze Strip)

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