High-Performance Brass Tubing Solutions
Brass tubing is highly valued across industrial sectors due to its lightweight nature, exceptional thermal conductivity, and superb low-temperature mechanical strength. It is commonly used in the manufacture of heat exchange equipment (such as condensers) and in the assembly of cryogenic pipelines in oxygen production equipment. Small-diameter copper and brass tubing is often used to transport pressurized liquids (such as in lubrication systems and hydraulic systems) and as pressure measuring tubes in instruments. Brass tubing is robust and corrosion-resistant.
Its main advantages include: copper tubing is hard, not easily corroded, and resistant to high temperatures and pressures, allowing it to be used in various environments. Compared to brass tubing, many other tubing materials have obvious disadvantages. For example, galvanized steel pipes, commonly used in residential buildings in the past, are extremely prone to corrosion, leading to problems such as yellowing tap water and reduced water flow after a short period of use. Some materials also experience a rapid decrease in strength at high temperatures, posing safety hazards when used in hot water pipes.
Today, Shandong Bamaoxing Steel Co., Ltd. offers a comprehensive line of brass tubing including brass tubing for electrical appliances, brass tubing for refrigeration, high-pressure resistant brass tubing, corrosion-resistant brass tubing, brass tubing for connections, brass tubing for water pipes, brass tubing for electric heating, and brass tubing for industrial applications.
Metallurgical Comparison: H62, H65, and H70 Brass
Understanding the impact of copper-to-zinc ratios on mechanical properties, corrosion resistance, and workability.
H70 Brass (C26000)
Known as "Cartridge Brass," containing approximately 70% Copper and 30% Zinc. It represents the pinnacle of cold workability among yellow brasses.
- Cu-Zn Ratio~70% Cu / 30% Zn
- Crystal StructureSingle-phase Alpha (α)
- Cold DuctilityOutstanding (Best)
- Tensile Strength≥ 290 MPa
- Dezincification RiskVery Low
H65 Brass (C26800)
A balanced alloy providing an optimal trade-off between mechanical strength, cold forming capacity, and structural cost-effectiveness.
- Cu-Zn Ratio~65% Cu / 35% Zn
- Crystal StructurePredominantly Alpha (α)
- Cold DuctilityGood / Standard
- Tensile Strength≥ 310 MPa
- Dezincification RiskModerate
H62 Brass (C28000)
A duplex brass containing roughly 62% Copper and 38% Zinc. High mechanical strength and excellent hot-working properties.
- Cu-Zn Ratio~62% Cu / 38% Zn
- Crystal StructureDuplex Alpha-Beta (α+β)
- Cold DuctilityModerate (Prone to cracking)
- Tensile Strength≥ 370 MPa
- Dezincification RiskHigher (Requires inhibitors)
Industrial Grade Selection & Scenarios
How to choose the correct brass alloy based on specific thermal, mechanical, and chemical working conditions.
Refrigeration & Cryogenics
Applications: Condensers, evaporators, heat exchangers, and cryogenic pipelines in oxygen/nitrogen production equipment.
Why H70? Refrigeration systems demand extreme thermal conductivity and the ability to withstand severe mechanical manipulation (bending, coiling, and flaring) without micro-cracking. H70's single-phase alpha structure offers the highest ductility and thermal efficiency, ensuring leak-free performance under thermal cycling.
Plumbing & Sanitary Fittings
Applications: Faucet bodies, shower valves, sanitary pipe connectors, and decorative bathroom hardware.
Why H65/H62? Plumbing fixtures require a balance of corrosion resistance, structural strength, and machinability. H65 offers excellent cold-forming properties for deep-drawn faucet parts, while H62 provides the structural rigidity and hot-forging capability required for heavy valves and threaded adapters.
HVAC & Hydronic Heating
Applications: Radiator tubes, heating manifolds, boiler connections, and thermal distribution loops.
Why H65? HVAC systems operate under continuous thermal stress and variable water chemistry. H65 offers the structural resilience to resist stress corrosion cracking (SCC) and handles high pressures and temperatures up to its limits easily, far outperforming steel or plastic alternatives.
Standard Specifications & Common Diameters
Available dimensional ranges, tolerances, and mechanical indicators of brass tubes supplied by Shandong Bamaoxing Steel Co., Ltd.
We supply high-precision brass tubes in standard refrigeration and plumbing sizes, including but not limited to: Ø6.35mm (1/4"), Ø9.52mm (3/8"), Ø12.7mm (1/2"), Ø15.88mm (5/8"), and Ø22.2mm (7/8"). Below is the technical specification table representing our standard production capabilities.
| Type / Parameter | Straight & Coiled Copper/Brass Pipe Specifications | Application Scenarios | Key Mechanical Metrics |
|---|---|---|---|
| Specification Range | Outer Diameter (OD): 2mm ~ 914mm | Wall Thickness (WT): 0.5mm ~ 80mm | Water tubes, Air Conditioning, Refrigeration, Water Heaters, Oil Coolers | Ultimate Tensile Strength: ≥ 205 MPa (up to 370+ MPa depending on temper) |
| Alloy Grades | C21000, C22000, C23000, C26000 (H70), C26800 (H65), C28000 (H62) | Electrical appliances, industrial heat exchangers, sanitary connections | Elongation (A50mm): ≥ 40% (in annealed soft temper) |
| Standard Lengths | 1m, 2m, 3m, 4m, 5.8m, 6m, or custom cut-to-length coils | Structural pipelines, distribution headers, heat exchanger bundles | Manufactured to standards: ASTM B135, JIS H3300, DIN 17671, GB/T 16866 |
| Processing Services | CNC Bending, Decoiling, Precision Cutting, Flaring, Annealing, Punching | Custom HVAC assemblies, pre-bent refrigeration lines, sanitary manifold kits | Origin: Tianjin / Shandong, China. Supplied by Shandong Bamaoxing Steel Co., Ltd. |
Custom In-House Processing Services
From raw tubing to ready-to-install components. We eliminate downstream processing bottlenecks for our customers.
Precision Cutting
Tolerance control within ±0.1mm. High-speed saw and laser cutting options to ensure burr-free edges ready for automatic welding.
CNC Tube Bending
Multi-radius rotary draw bending. Avoids wall thinning and wrinkling, critical for maintaining high pressure in refrigeration coils.
Flaring & Annealing
Online induction annealing of tube ends to restore ductility, ensuring crack-free 45° and 90° flaring during field connections.
Surface Polishing
Mirror polishing and chemical passivation to prevent tarnishing and oxidation during maritime shipping and long-term storage.
Cost Analysis: Raw Tube Procurement vs. Integrated Fabricated Supply
Sourcing Raw Tubing Separately
- High scrap rates (typically 5-12%) due to manual cutting and bending errors at secondary processing facilities.
- Multiple logistics layers: transport from mill to processor, then to assembly plant, multiplying freight costs.
- Quality disputes: hard to trace if cracks during flaring are due to material defects or poor processing tools.
- Extended lead times: managing multiple vendors causes production bottlenecks and inventory holding costs.
Integrated Supply from Shandong Bamaoxing Steel
- Zero scrap cost: You only pay for the finished, qualified components. Scrap is recycled directly at our mill.
- Unified logistics: Direct shipping from our processing workshop to your assembly line or port of export.
- Single-point quality guarantee: We take full responsibility for both alloy composition and dimensional accuracy.
- Up to 15-20% overall cost savings due to optimized industrial chain integration and high-speed automated tooling.
Frequently Asked Questions (FAQ)
Technical answers regarding environmental compliance, corrosion prevention, welding, and shipping logistics.
Get a Customized Technical Quote Today
Whether you need raw H62, H65, or H70 brass tubes, or fully fabricated heat exchanger components, Shandong Bamaoxing Steel Co., Ltd. is your one-stop supplier for premium brass tubes, rods, and plates. Submit your working conditions and dimensions below for an engineer-backed quote.