Ultra High Pressure ASTM B740 Copper Alloy for High Temperature Systems

• Customization: Available
• certification: Customized
• Length: Customized
• Model NO.: ASTM B740
• Outer Diameter: Customized
• Temperature Classification: High Temperature Piping
• MPa Classfication: Ultra High Pressure Piping
• Material: Copper Alloy
• Standard: ASTM, GB, API, DIN, JIS, BS
• Medium: Liquid
• Cross-Section Shape: Round
• Connection Type: Seamless
• Diameter: 419mm
• Transport Package: Wooden Case
• Specification: 1.2m*1.2m*L
• Trademark: Hehong
• Origin: China
• Production Capacity: 600ton/Month
• Package Size: 80.00cm * 80.00cm * 80.00cm
• Package Gross Weight: 1.000kg

Product Description

1. Product Overview: Introducing the groundbreaking Ultra High Pressure ASTM B740 Copper Alloy, meticulously crafted by Gansu Hehong New Materials Co., Ltd. Engineered for high-temperature systems, this alloy sets a new standard in material excellence.

Attribute	Description
Standard	ASTM B740
Material	CuNi15Sn8 (C72900) Spinodal Alloy
Key Features	Ultra-high strength, corrosion resistance, thermal stability, excellent fatigue resistance
Processing Routes	CNS-CSH (Casting), CNS-HWSH (Hot Worked), CNS-CWSH (Cold Worked)

2. Core Features: The Ultra High Pressure ASTM B740 Copper Alloy is imbued with unparalleled durability and superior thermal efficiency, designed to withstand the most demanding environments with exceptional performance.

Property	Value/Description
Tensile Strength	900-1,200 MPa (varies by temper)
Electrical Conductivity	5-7% IACS
Thermal Conductivity	40-50 W/(m·K)
Hardness	300-350 HV
Elongation	≥5%

3. Key Advantages: Experience unmatched reliability and longevity with this copper alloy. Its robust composition ensures optimal performance and stability even in high-pressure and high-temperature settings.

Advantage	Technical Benefit
Spinodal Hardening	Nanoscale phase separation for exceptional strength without sacrificing ductility
Corrosion Resistance	Excellent performance in marine, chemical, and high-humidity environments
Fatigue Resistance	Withstands cyclic loading (1/3 of tensile strength at 10^7 cycles)
Dimensional Stability	Minimal deformation under extreme temperatures (up to 200°C)

4. Applications: Versatile and robust, this copper alloy is perfect for diverse applications, including seawater desalination, nuclear power, petrochemical, marine, and various industrial systems requiring high-temperature endurance.

Industry	Typical Components
Electronics	High-speed connectors, relay springs, MEMS components
Aerospace	Fasteners, bearing cages, actuator parts
Oil & Gas	Downhole tools, valve components, drilling equipment
Industrial	Precision springs, corrosion-resistant fasteners, molds

5. Physical Properties: The Ultra High Pressure ASTM B740 Copper Alloy boasts superior tensile strength and corrosion resistance, making it an ideal choice for cutting-edge engineering solutions.

Property	Value
Density	8.82 g/cm³
Thermal Expansion	17.6 ×10^-6/K (0-300°C)
Elastic Modulus	131 GPa
Poisson's Ratio	0.34

6. Processing Routes: Discover the innovative processing techniques employed to achieve the distinctive properties of this copper alloy.

1) CNS-CSH (Casting Spinodal Hardening): This method enhances the mechanical properties, ensuring a consistent and reliable performance.

Step	Description
Non-vacuum semi-continuous casting	Gas protection + electromagnetic stirring for uniform microstructure
Homogenization	850-900°C × 4-8 hrs to eliminate segregation
Solution Treatment	800-850°C × 1-2 hrs followed by rapid cooling
Aging Treatment	350-450°C × 2-4 hrs to achieve spinodal hardening
Stress Relief	250-300°C × 1-2 hrs to minimize residual stresses

2) CNS-HWSH (Hot Worked Spinodal Hardening): Achieve remarkable structural integrity and resilience through this advanced technique.

Step	Description
Non-vacuum semi-continuous casting	Gas protection + electromagnetic stirring
Homogenization	850-900°C × 4-8 hrs
Hot Extrusion (Water-sealed)	Form rods/tubes with solution treatment integration
Aging Treatment	350-450°C × 2-4 hrs
Stress Relief	250-300°C × 1-2 hrs

3) CNS-CWSH (Cold Worked Spinodal Hardening): Perfect for applications demanding exceptional hardness and strength, this process refines the alloy to its optimum state.

Step	Description
Non-vacuum semi-continuous casting	Gas protection + electromagnetic stirring
Homogenization	850-900°C × 4-8 hrs
Hot Extrusion (Water-sealed)	Form rods/tubes with solution treatment
Cold Working	Drawing/rolling to achieve controlled deformation (20-50%)
Aging Treatment	350-450°C × 2-4 hrs
Stress Relief	250-300°C × 1-2 hrs

7. Quality Assurance: Our commitment to quality is unwavering, ensuring each product meets the highest standards through rigorous testing and validation.

Certification	Compliance
ASTM B740	Full compliance with mechanical & chemical requirements
RoHS/ELV	Lead-free (Pb <0.05%)
Test Reports	Mill test certificates (EN 10204 3.1) available upon request

Company Reference: Discover Gansu Hehong New Materials Co., Ltd.'s esteemed affiliations and contributions to the industry.

 

Jiangyin: A pivotal hub for our manufacturing excellence. Hehong Precision: A leader in precision manufacturing and innovation. Technology (HHP COPPER/Jiangyin New Huahong Copper Industry Co., Ltd.) is a distinguished branch of the Huahong Group (A-STOCK : 002645.SZ). Located conveniently near Shanghai, it stands as a prominent Copper Alloy products manufacturer in eastern China, celebrated for its advanced technological prowess and industry leadership.

We specialize in producing copper and copper alloy (admiralty brass/naval brass, aluminum brass, cupronickel/copper nickel) condenser tubes, efficient heat exchange tubes, large diameter copper nickel pipes, copper alloy forged flanges, oxygen-free copper products, and railway ground cables. With an annual production capacity exceeding 30,000 tons, our products excel in applications such as seawater desalination, nuclear power, petrochemical, marine, steam turbines, pressure vessels, heat exchangers, central air-conditioning, household appliances, and railway transit.
And we proudly authored the National Standard for copper alloy seamless tubes/pipes used in Nuclear Power! Revel in the innovation and precision that define our standards.