Silicon Bronze

Overview

A copper-based alloy primarily alloyed with silicon (typically 1%-4%), often with minor additions of zinc, manganese, iron, tin, etc. It exhibits excellent corrosion resistance, superior weldability and brazeability, good strength and toughness, along with favorable hot/cold workability and casting performance. Widely used in chemical equipment, marine engineering, welded structures, springs/fasteners, and construction industries.

Types & Specifications

Grade Standards	C65500, C65100, CuNi2Si, CuSi3Mn1
Shapes	Flat, round, square, rectangular, etc.
Electrical Conductivity	15%–30% IACS
Average Physical Properties	Melting Point: 900–1030°C Coefficient of Thermal Expansion: 20–300°C Brinell Hardness: 80–240

Key Features

High Corrosion Resistance in Seawater

Superior Weldability & Brazeability

Balanced Strength & Toughness

Excellent Casting Performance

Good Hot/Cold Workability

Applications

Marine hardware

Seawater pipelines

Industrial bearings

Fasteners

Production Process

1. 1) Ingredients and smelting →2) Casting →3) Extrusion →4) Heat treatment →5) Annealing →6) Straightening →7) Pickling →8) Packaging