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Ningbo Jintian Copper (Group) Co., Ltd.
Ningbo Jintian Copper (Group) Co., Ltd.
Code
Copper

C2100 Copper

Copper

Grade Name

C2100 Copper Alloy (Environmental Brass)


Key Features

  • High Conductivity: 56% IACS, ideal for electrical components.

  • Corrosion Resistance: Stable in atmosphere, freshwater, and seawater.

  • Machinability: Suitable for cold/hot working, welding, and forging.

  • Eco-Friendly: RoHS-compliant, Pb ≤0.03%47.


Product Forms & Dimensions

Form

Size Range

Rod

Diameter 1mm–350mm, Length 0.5–30m

Plate

Thickness 0.5–80mm, Width 650–2000mm

Wire

Diameter 0.1–15mm, Coil ≥5kg

Tube

OD 6–530mm, Wall Thickness 0.5–50mm

Strip

Thickness 0.1–3mm, Width ≤305mm


Chemical Composition

Element

Content (%)

Standard Range

Cu

95.0–97.0

Main Component

Zn

Balance

Balance

Pb

≤0.03

JIS H 3100-2018

Fe

≤0.10


Impurities

≤0.2



Physical Properties

Property

Value/Description

Density

8.86 g/cm³

Melting Point

950–1000℃

Electrical Conductivity

56% IACS

Thermal Conductivity

135 W/(m·K)

Thermal Expansion

10×10⁻⁶/℃ (20–300℃)


Mechanical Properties

Condition

Tensile Strength (MPa)

Elongation (%)

Hardness (HRB)

Annealed

≥205

≥33

50 HRB

1/4 Hard

225–305

≥23

70 HRB

Hard

≥305

-

85 HRB


Core Advantages

  • Cost-Effective: Higher strength than pure copper at lower cost.

  • Versatility: Supports cutting, heat treatment, and custom processing.

  • Certifications: Meets international environmental standards.


Applications

  • Electrical: Busbars, cables, connectors.

  • Heat Exchangers: Condenser tubes, radiators.

  • Architecture: Decorative panels, hardware.


Processing Guidelines

  • Hot Working: 820–870℃, avoid intermediate brittleness (200–700℃).

  • Annealing: 600–700℃ to relieve stress.

  • Cold Working: Control deformation to prevent cracking.


FAQs

Q1: Difference between C2100 and C2200?

A: C2200 has lower Cu (89–91%) and higher Zn, offering higher strength but lower conductivity .


Q2: Anti-corrosion methods?

A: Regular cleaning, avoid acidic environments, apply tin plating or coatings.


Standards

  • JIS H 3100-2018: Sheets, plates, and strips.

  • ASTM B36/B36M: Brass plates and strips.


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