Brass is an alloy mainly consists of copper and zinc, the varying content of chemical elements leads to the difference between each type of brass. There are many international standards for metal and alloy designation, here we are going to talk about two types of brass from GB/T system: H59 and H62, with lots of similarities, what's the difference between them and which one to choose if H59 vs H62 brass?
What are H59 Brass and H62 Brass?
Copper can be divided into electrolytic copper and copper alloy, then the copper alloy includes brass, bronze, and white brass (also called copper-nickel, paktong, or cupronickel). Brass is an alloy of copper and zinc; bronze is an alloy of copper and tin; white brass is an alloy of copper and nickel. Brass H62 and H59 are both a kind of copper alloy, as the game suggests, with copper content close to 62% and 59% respectively.
H62 brass refers to a type of ordinary brass with an average copper content of 62%, the "H" in H62 which from GB (Guobiao) standards, represents the first letter of the Pinyin of the Chinese character "Huang", and 62 represents the average content of copper. The ordinary brass added other elements called special brass, which is still represented by "H", followed by the added chemical symbols and their average composition. For example, HAl59-3-2 contains 57%-60% copper, 2.5%-3.5 aluminum, 2%-3% nickel and the remainder is zinc.
H59 brass is the cheapest brass with high strength, high hardness, and poor plasticity. It also can withstand pressure processing under the hot state, its corrosion resistance is average and other properties are similar to H62.
H59 vs H62 Brass, Which One to Choose - Difference Between H59 and H62
1. The most significant difference is their copper content and chemical composition.
Composition of H59 Brass:
Copper (Cu): 57 – 60%
Lead (Pb): ≤ 0.5%
Phosphorus (P): ≤ 0.01%
Iron (Fe): ≤ 0.3%
Stibium (Sb): ≤ 0.01%
Bismuth (Bi): ≤ 0.003%
Zinc (Zn): remainder
Impurity: ≤ 1.0%
Composition of H62 Brass:
Copper (Cu): 60.5 – 63.5%
Iron (Fe): ≤ 0.15%
Lead (Pb): ≤ 0.08%
Stibium (Sb): ≤ 0.005%
Bismuth (Bi): ≤ 0.002%
Phosphorus (P): ≤ 0.01%
Zinc (Zn): remainder
Impurity: ≤ 0.5%
2. Properties
H59 Properties:
Tensile strength σb (MPa): ≥ 294
Elongation δ10 (%): ≥ 25
Hot working temperature: 730 – 820 ℃
Annealing temperature: 600 – 670 ℃
H62 Properties:
Tensile strength σb (MPa): ≥ 315
Elongation δ10 (%): ≥ 30
Hot working temperature: 650 – 850 ℃
Annealing temperature: 600 – 670 ℃
Performance and applications
H59 brass has cheap price and ordinary corrosion resistance, so it is generally used for machine parts, welding parts, hot stamping and hot rolling parts, suitable for electrical appliances, electronics, lighting, hardware, mounting horizontal, switch, gasket, battery contact piece, copper button, watch strap, decorative necklace, bracelet, ring and other brass products. H62 brass has good mechanical properties, good corrosion resistance and better plasticity in hot or cold condition, it is easy to machine, braze and weld, but also easy to produce corrosion cracking, it can be used for parts need to withstand large load and the is a good material for making faucets. Common uses of H62 brass including pin, nut, washer, radiator, sugar industry, shipbuilding industry, paper industry, and other parts.
Standards
Our product range
| Category | Product Name | Standard Specifications | Typical Forms | Common Applications |
|---|---|---|---|---|
| Copper Tubes | Copper & Copper Alloy Tubes | ASTM B68, B75, B88, B280, B306, EN 12449, 12451, JIS H3300 | Straight lengths, coils, U-bends | HVACR, plumbing, heat exchangers, refrigeration, industrial pipelines |
| Copper Rods | Copper & Copper Alloy Rods | ASTM B187, B301, B441, EN 12163, 12164, JIS H3250 | Round, hexagonal, square, rectangular | Electrical components, fasteners, machined parts, connectors |
| Copper Plates/Sheets | Copper & Copper Alloy Plates/Sheets | ASTM B152, B248M, EN 1652, JIS H3100, H3110 | Plates, sheets, coils | Architectural cladding, roofing, chemical tanks, electrical shielding, fabrication |
| Copper Wires | Copper & Copper Alloy Wires | ASTM B1, B3, B258, EN 13601, 13602, IEC 60228 | Bare, tinned, stranded, single-end | Electrical wiring, cables, windings, conductors, wire mesh |
| Copper Strips/Bands | Copper & Copper Alloy Strips | ASTM B103, B122, B534, EN 1654, JIS H3110, H3260 | Coils, slit strips, narrow width | Busbars, connectors, terminals, transformers, electronic components |
| Other Copper Products | Custom Profiles & Special Shapes | Custom specifications, drawings accepted | Extruded, drawn, rolled | Custom engineering, automotive, aerospace, specialty industrial uses |
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Copper Packaging
Our copper products all employ professional graded packaging to ensure transportation safety and product integrity: Copper tubes and rods are tightly wrapped with moisture-proof stretch film and secured on reinforced wooden pallets, with extra corner protectors for extra-long tubes; Copper plates, strips, and wire coils are lined with waterproof paper or plastic film, fixed externally with sturdy wooden crates or steel-strapped solid wooden pallets, and include VCI (Volatile Corrosion Inhibitor) paper inside to prevent corrosion. All packages are clearly marked with product information, lifting symbols, and moisture/impact warnings, and can be customized according to client requirements to ensure safe delivery to destinations worldwide.
