service@jtgroup.com.cn
+86-057483005999
+86-18057437999
en
en
Ningbo Jintian Copper (Group) Co., Ltd.
Ningbo Jintian Copper (Group) Co., Ltd.
Code
Bronze

C5102 Bronze

Bronze

Grade Name

C5102 Phosphor Bronze (Tin-Phosphorus Bronze)


Key Features

  • High Elasticity & Wear Resistance: Tin (4.5–6.0%) and phosphorus (0.03–0.35%) enhance fatigue resistance.

  • Corrosion Resistance: Suitable for weak acidic and humid environments.

  • Machinability: Cold-working compatible with stamping and bending.

  • Eco-Compliance: RoHS-compliant (Pb ≤0.05%).


Product Forms & Dimensions

Form

Size Range

Standards

Strip

Thickness 0.1–2.0mm, Width 10–600mm

JIS H 3110-2018

Plate

Thickness 0.5–50mm, Width 100–2000mm

ASTM B103-19

Wire

Diameter 0.2–12mm, Coil ≥3kg

JIS H 3270-2018

Rod

Diameter 3–150mm, Length 1–6m

EN 1654:1997

Tube

OD 5–100mm, Wall Thickness 0.5–10mm

DIN 17660


Chemical Composition

Element

Content (%)

Standard Range

Cu

Balance

Main Component (JIS H 3110)

Sn

4.5–6.0

Enhances Elasticity

P

0.03–0.35

Improves Wear Resistance

Pb

≤0.05

RoHS Limit

Fe

≤0.10

Impurity Control

Zn

≤0.30

Impurity Control


Physical Properties

Property

Value/Description

Density

8.86 g/cm³

Electrical Conductivity

14% IACS (20℃)

Thermal Conductivity

70 W/(m·K)

Thermal Expansion

18.5×10⁻⁶/℃ (20–200℃)


Mechanical Properties

Condition

Tensile Strength (MPa)

Elongation (%)

Hardness (HV)

Annealed (O)

400–500

≥25

90–120 HV

1/4 Hard (H01)

600–750

≥12

160–200 HV

Hard (H04)

≥750

≥5

≥220 HV


Core Advantages

1. Fatigue Resistance: Ideal for high-cycle fatigue applications (e.g., springs).

2. Surface Versatility: Compatible with tin/nickel plating for enhanced durability.

3. Cost Efficiency: Direct cold-forming reduces post-processing steps.


Applications

  • Electronics: High-frequency connectors, relay springs.

  • Machinery: Heavy-duty springs, bearing cages.

  • Automotive: Sensor springs, fuel injector components.

  • Instrumentation: Precision elastic components.


Processing Guidelines

  • Cold Working: Limit deformation to ≤40% to prevent cracking.

  • Annealing: 650–750℃ to restore ductility and relieve stress.

  • Surface Treatment: Acid cleaning before plating for adhesion.


FAQs

Q1: Differences between C5102 and C5111?

A: C5102 has higher tin (4.5–6.0% vs. 3.5–4.5%) for higher elasticity and load capacity.


Q2: Suitability for high-temperature use?

A: Not recommended for >120℃; consider C5210 for elevated temperatures.


Standards

  • JIS H 3110-2018: Phosphor bronze sheets, strips, and foils.

  • ASTM B103-19: Phosphor bronze plate and strip standards.

  • EN 1654:1997: European copper alloy strip standards.


Start Your Partnership With JINTIAN COPPER!
Whether you have any questions about our products, please feel free to contact us, we will reply as soon as possible.
Related JINTIAN JIS
News from Ningbo Jintian Copper (Group) Co., Ltd
Honor | Jintian Copper Industry Selected Into The Second Batch Of National Intelligent Manufacturing Standard Application Pilot Projects
28
May 2025
Honor | Jintian Copper Industry Selected Into The Second Batch Of National Intelligent Manufacturing Standard Application Pilot Projects Learn More
The Copper Market Under the Blade of Trump's Tariffs: A Life-and-Death Struggle in the Global Supply Chain
15 May 2025
The Copper Market Under the Blade of Trump's Tariffs: A Life-and-Death Struggle in the Global Supply Chain Learn More
Why Do Cable Materials Prefer High-Purity Oxygen-Free Copper?
05 May 2025
Why Do Cable Materials Prefer High-Purity Oxygen-Free Copper? Learn More