Solid H90 Copper Round Rod
Henan Gnee New Material Co., Ltd. is one of the most professional manufacturers and suppliers of solid h90 copper round rod in China, specialized in providing high quality copper products with competitive price. Welcome to buy discount solid h90 copper round rod for sale here from our factory. Customized orders are welcome.
What is a Solid H90 Copper Round Rod?
The Solid H90 Copper Round Rod (commonly known as Gilding Metal) is a premium copper-zinc alloy with an exceptionally high copper content of 90%. Often referred to as "commercial bronze" in some markets (though it contains no tin), H90 offers the warm, rich color of copper with enhanced strength, superior corrosion resistance, and excellent workability. It occupies a unique space between pure copper and traditional brasses, making it the material of choice for architectural accents, marine hardware, and applications where appearance and longevity matter.
Mechanical properties
Tensile strength: σb/MPa≥390.
Elongation: δ10/%≥3.
Strength is higher than pure copper, with the increase of zinc content, its strength increases, but the plasticity decreases.H90 brass has good mechanical properties and pressure machining performance, good surface treatment properties, can be plated metal and coated enamel, not easy to age rupture.
Chemical Composition
| Element | Copper (Cu) | Zinc (Zn) | Lead (Pb) | Iron (Fe) | Antimony (Sb) | Bismuth (Bi) | Phosphorus (P) |
|---|---|---|---|---|---|---|---|
| Percentage | 88.0 - 91.0% | Balance | ≤ 0.05% | ≤ 0.10% | ≤ 0.005% | ≤ 0.002% | ≤ 0.01% |
Physical & Mechanical Properties
| Property | Value |
|---|---|
| Density | 8.80 g/cm³ |
| Electrical Conductivity | 35% - 40% IACS @ 20°C |
| Electrical Resistivity | 0.045 µΩ·m @ 20°C |
| Thermal Conductivity | 140 - 160 W/m·K @ 20°C |
| Melting Point (Liquidus) | 1020°C (1868°F) |
| Melting Point (Solidus) | 1000°C (1832°F) |
| Modulus of Elasticity | 115 GPa |
| Poisson's Ratio | 0.34 |
| Coefficient of Thermal Expansion | 18.5 µm/m°C (20°C to 300°C) |
| Specific Heat Capacity | 380 J/kg·K @ 20°C |
International Grade Equivalents
| Standard | Grade Designation | Nominal Composition |
|---|---|---|
| Chinese GB | H90 | Cu 88-91%, Zn balance |
| ASTM (USA) | C22000 | Cu 89-91%, Zn balance |
| UNS (USA) | C22000 | Cu 89-91%, Zn balance |
| JIS (Japan) | C2200 | Cu 89-91%, Zn balance |
| DIN (Germany) | CuZn10 / 2.0230 | Cu 90%, Zn 10% |
| BS (UK) | CZ101 | Cu 90%, Zn 10% |
| ISO | CuZn10 | Cu 90%, Zn 10% |
| Common Name | Commercial Bronze / Gilding Metal | Cu 90%, Zn 10% |
H90 vs. Other High-Copper Brasses
| Property | H90 (CuZn10) | H85 (CuZn15) | H80 (CuZn20) | H70 (CuZn30) |
|---|---|---|---|---|
| Copper Content | 88-91% | 84-86% | 79-81% | 69-71% |
| Zinc Content | 9-12% | 14-16% | 19-21% | 29-31% |
| Color | Copper-gold | Gold | Yellow-gold | Golden yellow |
| Strength | Good | Good | Good | Good |
| Ductility | Very Good | Very Good | Good | Excellent |
| Corrosion Resistance | Excellent | Very Good | Good | Good |
| Marine Performance | Best | Very Good | Good | Good |
| Cost | Higher | Higher | Medium | Medium |
H90 vs. H62
| Property | H90 (Gilding Metal) | H62 (Standard Brass) |
|---|---|---|
| Copper Content | 90% | 62% |
| Color | Warm copper-gold | Yellow-gold |
| Corrosion Resistance | Excellent (marine grade) | Good |
| Marine Suitability | Excellent | Moderate |
| Strength | Good | Higher |
| Machinability | Good | Excellent |
| Formability | Better | Good |
| Cost | Higher | Lower |
| Typical Use | Marine, Architectural | Machined components |
When to Choose H90:
Applications requiring warm copper color with better durability
Marine environments (superior corrosion resistance)
Architectural hardware exposed to weather
Restoration work matching period materials
Jewelry and luxury goods where appearance matters
Any application where material will be visible and appreciated
Packaging & Delivery
We take extra care with H90 welding electrodes because we know they are typically used in high-end, high-profile applications with extremely demanding surface quality requirements. Each electrode is inspected before packaging-we are meticulous about surface scratches and imperfections, because you are too. For electrodes with standard finishes, we securely bundle them together with protective padding and wrap them in moisture-proof kraft paper and polyethylene film. For electrodes with polished or decorative finishes, we additionally package them individually with soft tissue paper or foam sleeves. Export orders are shipped in heavy-duty plywood crates with internal reinforcement-we never use inferior cardboard.
Our Team
GNEE was established in 2008 with 18 years of manufacturing and sales experience. With many years of production experience and independent production factories, we can provide you with customized products. Meanwhile, we cooperate with many famous factories, which can provide you with large quantities of high quality metal. We have up to 200 employees and will continue to grow in the future. All of them are committed to providing you with better products and services. We are committed to providing you with the best products and services, and we will provide you with more favorable pricing and safe and fast transportation solutions. GENN is trustworthy. We look forward to working with you.
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