C2100 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.