C17300 beryllium copper plate alloy 33 25 ASTM B196 CuBe2Pb copper plates

C17300 beryllium copper plate is a high-performance, easy-to-machine beryllium bronze alloy that complies with ASTM B196 standards. It is widely used in electronics, aerospace, mold manufacturing, and explosion-proof tools, among other fields. Its typical composition is: beryllium (Be) 1.8–2.0%, lead (Pb) 0.2–0.6%, nickel + cobalt ≤ 0.6%, and the remainder is high-purity copper. It combines high strength with good electrical conductivity. After solution treatment and aging, the tensile strength of C17300 can reach 1200–1400 MPa, and the hardness is HRC 38–44. At the same time, it maintains 18–50% IACS conductivity and excellent elastic modulus (about 128 GPa). The lead-containing design of C17300 beryllium copper plate significantly improves the cutting performance. C17300 beryllium copper plate is suitable for automatic lathe processing of precision parts, such as connectors, springs, diaphragms, and injection mold inserts. The C17300 beryllium copper plate material is non-magnetic, spark-resistant, and corrosion-resistant, and is particularly suitable for use in flammable and explosive or high-reliability environments.

We offer C17300 beryllium copper plates in various states (soft, hard, aged, etc.) and specifications (thickness ranging from 0.5 to 80mm). We support zero-cut customization, provide material reports, have ample stock in stock, and can deliver nationwide. Welcome to inquire about purchasing the high-maintenance, high-conductivity, and high-elasticity C17300 beryllium copper plates!

The standard size range of C17300 beryllium copper plate is as follows:

• Thickness: 0.5 – 80 mm

• Width: 500 – 1250 mm

• Length: 1000 – 6000 mm

Standard thickness of C17300 beryllium copper plate

• Thin plate: 0.5 mm – 6 mm

• Medium-thick plate: 6 mm – 50 mm

• Thick plate: 50 mm – 80 mm (Some manufacturers can provide up to 100 mm for the maximum size)

Note: Ultra-thin strips (such as 0.01 – 2.0 mm) are usually classified as "beryllium copper strips" and supplied in coil form.

C17300 beryllium copper plate standard width

• Standard width: 500 mm, 600 mm, 1000 mm, 1200 mm, 1250 mm

• Common range: 500 mm – 1250 mm

Some manufacturers support custom widths up to 3000 mm (requires special rolling).

C17300 beryllium copper plate standard length

• Standard fixed lengths: 1000 mm, 1200 mm, 2000 mm, 2440 mm, 3000 mm

• General range: 1000 mm – 6000 mm (i.e. 1 – 6 meters)

It can be cut to zero-length according to customer requirements. The minimum order quantity can be a single sheet (especially suitable for thin plates).

Chemical composition (mass percentage, wt%)

According to international standards such as ASTM B196/B197, the main chemical composition of C17300 is as follows:

• Copper (Cu): The remainder (≥99.50%, containing specified alloy elements)

• Beryllium (Be): 1.8% – 2.0%

• Lead (Pb): 0.20% – 0.60% (significantly improving cutting performance)

• Nickel + Cobalt (Ni + Co): ≤0.60%, and ≥0.20% (used to refine grains and inhibit grain boundary embrittlement)

• Other impurities (such as Fe, Si, P, S, etc.): Total ≤0.1% – 0.2%

This ratio enables C17300 to maintain high conductivity while achieving extremely high strength and elasticity, and possessing good machinability.

Physical properties (typical values, aged hardened state)

Note: The performance data may vary slightly due to the heat treatment process (such as solution treatment + aging parameters) and the processing state (soft state, hard state, TF00/TF04, etc.)

Summary of Performance Characteristics

• High strength + High elasticity: Approaching the level of tool steel, suitable for high-load springs, diaphragms and other elastic components;

• Good electrical conductivity and heat conductivity: Meeting the dual requirements of electrical connection and heat dissipation;

• Easy to machine: Due to the presence of lead, suitable for precise automatic turning of micro parts;

• Non-magnetic, spark-resistant, corrosion-resistant: Suitable for sensitive environments such as explosion-proof, medical, and aerospace.