What is H96 brass?
H96 brass is a type of copper alloy with the following chemical composition: copper (Cu) content of 95.0–97.0%, zinc (Zn) as the balance, lead (Pb) ≤ 0.03%, phosphorus (P) ≤ 0.01%, iron (Fe) ≤ 0.10%, antimony (Sb) ≤ 0.005%, bismuth (Bi) ≤ 0.002%, and total impurities ≤ 0.2%.
Properties of H96 Brass
Mechanical Properties
Tensile strength σb (MPa): ≥ 205 (for tubular materials, longitudinal mechanical properties at room temperature). In some cases, tensile strength σb (MPa) can be ≥ 275.
Elongation δ10 (%): ≥ 35, elongation δ5 (%): ≥ 42 (for tubular materials, longitudinal mechanical properties at room temperature).
Physical Properties
Strength: Higher than pure copper but the lowest among ordinary brass alloys.
Electrical and thermal conductivity: Exhibits good electrical and thermal conductivity.
Corrosion resistance: Shows high corrosion resistance in atmospheric and freshwater environments.
Plasticity: Possesses good plasticity and is easy to process through cold and hot pressure methods.
Welding, forging, and tin-plating properties: Easily welded, forged, and tin-plated, with no tendency for stress corrosion cracking.
Processing of H96 Brass
Hot working temperature: 775–850°C.
Annealing temperature: 540–600°C.
Due to its excellent plasticity and workability, it can be processed into components of various shapes through forging, cold drawing, rolling, and other techniques. It is suitable for complex and precision machining.
Applications of H96 Brass
Construction Field
Widely used in building profiles, door and window frames, hinges, locks, and forged parts.
Electronic and Electrical Equipment Field
Exhibits excellent comprehensive properties such as good ductility, deep drawability, high strength, and hardness. It is often used as elastic materials in electronic and electrical equipment, structural materials for integrated circuit leads, and more.
It can also be used in medium-speed, heavy-load bearings operating at temperatures up to 250°C, offering features such as self-aligning capability, insensitivity to misalignment, uniform stress distribution, high load-bearing capacity, ability to withstand radial loads simultaneously, and self-lubrication without requiring maintenance.
Its phosphor bronze socket hardwired electrical structure, with no riveted connections or friction contacts, ensures good contact, excellent elasticity, and smooth insertion and removal.
The alloy exhibits good machinability and chip formation properties, enabling rapid part manufacturing and shortened production times.
FAQ
| Q: What is the typical form and size range for H96 products? A: It is commonly supplied as strip/coil, sheet/plate, wire, and tube. Typical dimensions include: Strip/Coil: Thickness 0.1mm - 3.0mm, Width up to 600mm. Wire: Diameter 0.5mm - 12.0mm. Tube: Outer Diameter (OD) 3mm - 50mm. |
| Q: What is the temper (hardness state) available for H96 strip? A: It is commonly available in soft (O), quarter-hard (H01), half-hard (H02), and hard (H04) tempers to suit different forming requirements. |
| Q: How does the price of H96 compare to other brasses and copper? A: Due to its high copper content, its price is higher than common brasses like H62 and H68, but generally lower than pure copper and premium alloys like phosphor bronze. It offers a good balance of performance and cost. |
| Q: What are the main surface finishes available for H96/C21000 brass? A: Standard finishes for H96/C21000 brass include mill finish (matte), polished, and various coated finishes (such as clear lacquer or passivation) to prevent tarnishing, especially for decorative uses. |
| Q: Is H96 suitable for making springs? A: Yes, its good combination of conductivity, corrosion resistance, and spring properties (in hardened tempers) makes H96/C21000 a preferred material for certain electrical conductivity springs and contacts. |
| Q: How does H96 perform in terms of machinability? A: Its machinability rating is relatively low (around 20% on the free-cutting brass C36000=100% scale). It is gummy and tends to adhere to cutting tools. It is not typically chosen for high-volume machining operations. |
| Q: Are H96 from China and C21000 from the USA exactly the same? A: They are equivalent grades with nearly identical nominal compositions. Minor differences may exist in permissible impurity levels between the GB (Chinese) and ASTM (U.S.) standards. For most applications, they are considered interchangeable, but critical applications should verify the exact specification requirements. |
| Q: Can H96/C21000 brass be used for marine applications? A: With its high corrosion and dezincification resistance, H96/C21000 brass can be used in certain low-corrosion marine environments (e.g., interior components, decorative fittings). However, for critical seawater applications, more specialized alloys like aluminum brass or copper-nickel are recommended over H96 brass. |
Our product range
Our factory is a professional manufacturer of copper and copper alloy products, specializing in the export of high-quality copper materials. We possess modern production facilities and a strict quality control system, employing advanced production processes and technologies from raw material smelting to final product forming. The factory is equipped with precision extrusion, drawing, rolling, and heat treatment equipment, enabling the production of various specifications of copper pipes, copper plates, copper strips, copper rods, copper wires, and special profiles. We particularly excel in producing standard-grade brass products such as H96, H90, and H62, while also customizing chemical compositions, dimensional specifications, and surface treatments based on customer requirements. Certified with the ISO 9001 quality management system, our products comply with international standards such as ASTM, EN, JIS, and GB. They are widely used in construction, electronics, machinery, automotive, and other industries and are exported to over 50 countries and regions worldwide. We are committed to providing high-quality products and professional services, making us your reliable copper material partner.
Copper product packaging
We adopt professional, safe, and environmentally compliant international standard packaging solutions. All products are custom-packaged according to their form and transportation requirements: pipes are reinforced with moisture-proof woven bags or wooden crates, with protective sleeves added to the ends; plates and strips are wrapped in anti-rust paper and placed in dry wooden crates or on pallets, with special protection for the edges; wires and rods are wrapped in waterproof film and secured on pallets or bundled wooden crates. All packaging includes clear labels detailing product specifications, grades, batch numbers, and shipping marks. Additionally, moisture-proof and anti-rust treatments are applied to withstand long-distance sea transport or special climate conditions, ensuring that the goods remain intact during transportation and storage. Our packaging meets the import standards of various countries.
