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Copper Alloy Strip combines copper with alloying elements such as nickel, tin, and zinc to enhance mechanical strength, wear resistance, and durability while maintaining good electrical conductivity. It is designed for demanding applications requiring higher strength and improved service performance than pure copper materials.
Widely used in electrical connectors, spring contacts, precision stamped components, and industrial applications requiring reliable mechanical performance and long-term durability.
Copper alloy strip (high-precision phosphor bronze strip C5191/C5210, beryllium copper strip C17200, brass strip C2600/C2680, nickel silver strip C7521, and copper-iron alloy strip) is precision cold-rolled to deliver superior elastic springback, ultra-high tensile yield strength, excellent deep-drawing formability, and outstanding thermal/electrical conductivity. Specially engineered for high-speed automated progressive stamping and intricate bending operations, precision copper alloy strip ensures tight dimensional tolerances and zero micro-cracking during heavy cold deformation.
At XQJ Metal, we utilize state-of-the-art 20-high Sendzimir rolling mills, stretch bending levelers, and online tension annealing systems to manufacture world-class copper alloy strip conforming to stringent international standards, including ASTM B103 (phosphor bronze strip), ASTM B36 (brass strip), ASTM B194 (beryllium copper strip), EN 1652, and JIS H3130 specifications. We supply ultra-thin gauge strip thicknesses from 0.05mm to 3.0mm and custom slitting widths from 3.0mm up to 600mm, available in soft annealed, semi-hard, spring hard, and extra spring hard tempers.
| Copper Alloy Family | Standard Grade & UNS Code | Tensile Strength (MPa) | Hardness (HV) | Primary Engineering Attributes |
| Phosphor Bronze Strip | C5191 (CuSn6) / C5210 (CuSn8) | 400 to 850 MPa | 120 to 240 HV | Superior spring elasticity, exceptional fatigue endurance, high wear resistance, non-magnetic |
| Beryllium Copper Strip | C17200 (CuBe2) / C17500 (CuCoBe) | 750 to 1350 MPa | 220 to 400 HV | Highest tensile yield strength, elevated temperature relaxation resistance, anti-galling |
| Brass Alloy Strip | C2600 (Cartridge) / C2680 (Yellow Brass) | 320 to 650 MPa | 85 to 190 HV | Excellent deep drawing ductility, cost-effective, smooth surface finish for electroplating |
| Nickel Silver Strip | C7521 (CuNi18Zn20) / C7701 | 450 to 750 MPa | 130 to 220 HV | Silvery aesthetic, outstanding tarnish resistance, high shielding effectiveness for RF covers |
Selecting between pure copper coil strip (C11000/C10200) and specialized copper alloy strip depends on mechanical stress and formability requirements:
To support high-speed progressive die stamping machines, our copper alloy strip products feature fully customized processing specifications:
Our high-performance copper alloy strip is widely specified by global Tier-1 manufacturers across multiple technology sectors:
To ensure flawless performance on high-speed stamping lines, XQJ Metal enforces rigorous Quality Assurance (QA) protocols on every copper alloy strip coil:
Q1: What is the main difference between C5191 and C5210 Phosphor Bronze Strip?
A: C5210 contains a higher tin content (~8%) compared to C5191 (~6%), providing superior spring elasticity, higher fatigue limit, and greater yield strength, making C5210 the preferred choice for demanding spring contacts and connectors.
Q2: Can XQJ Metal supply copper alloy strip with custom slitting widths down to 3.0mm?
A: Yes, our high-precision slitting lines can custom-slit foil and strip down to 3.0mm widths with burr-free edges, packed securely on custom plastic or cardboard spools.
To request current FOB/CIF price quotes, alloy technical datasheets, or sample coils for copper alloy strip, Contact Our Alloy Engineering Team today.
Our materials support a wide range of construction and infrastructure projects
The appropriate copper alloy strip should be selected based on the required electrical conductivity, mechanical strength, formability, corrosion resistance, and the intended manufacturing process. Choosing the correct alloy helps ensure consistent product quality and production efficiency.
Copper alloy strip offers excellent dimensional consistency, stable mechanical properties, and reliable processing performance, making it well suited for continuous stamping, precision forming, and automated production lines.
Before selecting a copper alloy strip, key factors such as alloy grade, temper, thickness tolerance, surface condition, fabrication method, and end-use requirements should be evaluated to ensure reliable manufacturing performance and product consistency.
It offers excellent resistance to seawater corrosion and maintains strength in humid and salt-rich conditions.
No. Strength is achieved through strain hardening rather than heat treatment.
Yes. It provides excellent weldability for structural fabrication.
Yes, it is commonly applied in tanks and pressure equipment.
Yes. It provides higher strength compared with most non-heat-treated aluminum alloys.
Yes. Thickness, width and temper can be adjusted based on project demand.
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