ASTM C67400 真鍮プレートおよびブロック HMN58-2

As a core enterprise in the global copper alloy supply chain, our products cover China and countries worldwide. We are deeply involved in various major national projects, earning the long-term trust of global customers through stable performance and reliable delivery. ASTM C67400 Brass Plates and Blocks HMN58-2, our flagship product, integrates 30 years of process experience, full-chain quality control, and customized services. It is the optimal solution for those seeking "high performance + high cost-effectiveness + stable supply" manganese brass materials—eliminating concerns about insufficient capacity, quality fluctuations, and delays, providing a one-stop solution for your procurement and customization needs.

ASTM C67400 Brass Plates and Blocks HMN58-2 (Chinese National Standard HMN58-2 / American Standard C67400) is a high-performance manganese brass belonging to the copper-zinc-manganese ternary system. Through manganese solid solution strengthening and trace lead optimization of machinability, it achieves six core properties: high strength, high wear resistance, strong corrosion resistance, easy machining, non-magnetic, and thermal stability. These properties surpass ordinary brass and are comparable to medium carbon steel, making it the preferred material for heavy-duty, frictional, and corrosive applications.

Six Core Advantages

1. High Strength and Hardness, Load-Bearing and Deformation-Resistant, Replacing Medium Carbon Steel: In the cold-worked state, ASTM C67400 Brass Plates and Blocks HMN58-2 has a tensile strength of up to 750 MPa, a yield strength of 430 MPa, and a Brinell hardness of HB 140-200. Its strength and hardness are comparable to medium carbon steel and far superior to ordinary brass (such as H62). 1. Used in heavy-duty components such as bearings, bushings, gears, and high-pressure valves, it remains undeformed and wear-free under long-term loads, significantly extending equipment lifespan and reducing replacement frequency and maintenance costs.

2. Excellent wear resistance, low friction and wear resistance, suitable for sliding friction conditions. The product has a friction coefficient of only 0.18-0.22, contains Mn-Si wear-resistant phases and trace amounts of lead, exhibiting strong self-lubricating properties and outstanding wear resistance. It is particularly suitable for high-frequency sliding friction scenarios such as marine propeller bushings, automotive valve guides, synchronizer gear rings, and industrial sliding bearings, showing no significant wear during long-term operation and reducing the risk of equipment downtime.

3. Excellent corrosion resistance, seawater and acid/alkali resistant, long-term stability in harsh environments. ASTM C67400 Brass Plates And Blocks HMN58-2 has an annual corrosion rate of <0.02mm in 3.5% NaCl solution (seawater), demonstrating resistance to seawater erosion, weak acids, and atmospheric corrosion far exceeding that of ordinary brass. It can be used for extended periods in corrosive environments such as marine seawater pumps and valves, offshore platform pipelines, chemical acid and alkali resistant reactors, and heat exchanger tube bundles. It is resistant to seawater, chloride ions, and industrial atmospheric corrosion, with a service life exceeding 10 years.

4. Excellent machinability, adaptable to multiple processes, and efficient and worry-free customized processing. The material combines toughness and machinability, allowing for free forging, drawing, extrusion, cutting, stamping, and argon arc welding. Trace amounts of lead further enhance machinability, resulting in a high-smoothness, burr-free, and crack-free surface finish. Whether cutting standard HMN58-2 brass plates, ASTM C67400 brass blocks, or complex custom-made specifications, it can be completed efficiently, adapting to various precision machining needs.

5. Non-magnetic + stress corrosion resistant, specifically designed for sensitive environments, safe and stable. The product is non-magnetic and exhibits strong resistance to dezincification and crevice corrosion in chloride ion environments, making it suitable for electronic and electrical equipment, precision instruments, and other applications sensitive to magnetic interference. Used in connectors, terminals, lead frames, high-voltage electrical contacts, offshore wind power connectors, and other components, it is free from magnetic interference and corrosion, ensuring safe and stable equipment operation.

6.Excellent thermal stability; does not easily soften at high temperatures; reliable hot-end components. The product has a high softening temperature and maintains structural stability even in high-temperature environments, resisting deformation and softening. Suitable for hot-end components in automotive engines, industrial high-temperature valves, high-temperature bearings, and other high-temperature applications, it maintains stable performance under long-term high-temperature operation without safety hazards.

Detailed Technical Parameters

Whether you are an equipment manufacturer, engineering contractor, or global trading buyer in industries such as shipbuilding, chemical, power, or automotive, we can meet your needs for high-performance, cost-effective, and stable supply in one stop. No need to worry about quality fluctuations, project delays, or excessive costs. Backed by 30 years of experience in our factory, we offer end-to-end quality control and customized services, ensuring worry-free procurement, reliable use, and hassle-free cooperation.

Contact us now for the latest price quote, samples, and technical support for ASTM C67400 Brass Plates And Blocks HMN58-2. Our professional team is available 24/7 to quickly address your procurement needs, helping your projects progress efficiently, equipment operate stably, and costs be continuously optimized!