Copper and Copper-Based Alloys

BMI supplies a comprehensive range of Copper and Copper-based alloys designed for applications demanding electrical conductivity, corrosion resistance, and thermal performance.

These alloys combine excellent machinability, aesthetic appeal, and antimicrobial properties, making them suitable for industrial, marine, architectural, and electrical systems.

SPECIFICATIONS FOR EVERY REQUIREMENT.

GRADES

C11000 (Electrolytic Tough Pitch Copper)
C10100
C12200
Brass (C26000 / C36000)
Bronze (C51000 / C63000)
Cu-Ni 90/10 (C70600)
Cu-Ni 70/30 (C71500)
Beryllium Copper (C17200)
CuproSilicon (C65100)

Specialty grades available upon request.

PRODUCT RANGE

Sheets & Plates: Hot-rolled and cold-rolled copper, brass, and bronze sheets
Coils & Strips: Precision coils for switchgear and electrical components
Pipes & Tubes: Seamless and welded tubes for condensers, HVAC, and marine use
Rods & Bars: Free-cutting brass and bronze bars for fittings and fasteners
Wires: Conductive and spring-grade wires for electrical and mechanical use
Flanges & Fittings: Cu-Ni and bronze fittings for seawater systems
Custom Machined Parts: Precision machined or forged to customer specifications

STANDARDS

Copper sheets, bars, and rods - ASTM B152 / B187 / B133
Copper–Nickel pipes and tubes - ASTM B111 / B466
Brass plates and sheets - ASTM B36 / B36M
Phosphor bronze and silicon bronze - ASTM B103 / B150
Beryllium copper strip - ASTM B194
Cu-Ni tube standards for pressure use - ASME SB111 / SB466
European copper and Cu–Ni specifications - EN 1652 / 12451 / 12452
Indian copper alloy standards - IS 191 / 2379 / 291

MAKE

We source and stock products regularly from:

Luvata – Oxygen-free and ETP copper
KME Group – Industrial & architectural copper alloys
Mueller Industries – Copper pipes and fittings
Wieland Group – Brass and bronze sheets and coils
Mitsubishi Materials – High-purity and BeCu alloys
DOWA / NGK – Beryllium copper strip and spring alloys
Hindustan Copper Ltd – Primary copper and Cu–Ni billets
Bhagyanagar India

Specific Makes are available upon request

MTC is always provided when you choose BMI

QUALITY PARAMETERS SET BY BMI

Exceptional thermal & electrical conductivity (up to 100% IACS)
Excellent corrosion resistance, even in marine and chemical environments
Easy formability and machinability for architectural and mechanical components
Natural antimicrobial properties for hygiene-sensitive environments
Non-sparking, non-magnetic variants (BeCu, Cu-Ni)
Superior aesthetic appeal for decorative and design applications

CHEMICAL COMPOSITION

Element C11000 C26000 (Brass) C51000 (Phosphor Bronze) C70600 (Cu-Ni 90/10) C17200 (BeCu)

Copper (Cu) 99.90 min 68.5 94 88.6 97.9

Zinc (Zn) — 31.5 — — —

Tin (Sn) — — 5.0 — —

Nickel (Ni) — — — 10 —

Iron (Fe) — — 0.2 1.4 0.2

Manganese (Mn) — — — 1.0 —

Phosphorus (P) 0.015 — 0.03 — —

Beryllium (Be) — — — — 1.9

Lead (Pb) — 0.1–0.5 — — —

Others TraceO₂ — Trace Trace Trace

MECHANICAL PROPERTIES

Property C11000 (ETP) C26000 (Brass) C51000 (Bronze) C70600 (Cu-Ni 90/10) C17200 (BeCu, aged)

Tensile Strength (MPa) 210 340 450 350 1100

Yield Strength (MPa) 70 150 250 120 1000

Elongation (%) 45 30 20 30 5–10

Hardness (HB) 40 80 110 90 350

Density (g/cm³) 8.94 8.47 8.8 8.9 8.25

Electrical Conductivity 100 28 15 6 20

Max Service Temp (°C) 200 250 300 400 315

INDUSTRY APPLICATIONS.

Electrical & Power: Bus bars, switchgear, transformers, conductors
Marine & Offshore: Cu-Ni piping, heat exchangers, condensers
Architecture & Design: Cladding, handrails, decorative panels
HVAC & Plumbing: Tubing, coils, connectors
Aerospace & Defense: Non-sparking, high-fatigue BeCu components
Medical & Sanitation: Antimicrobial surfaces and fittings