ASTM B740 CuNi15sn8 for Ultra High Pressure Piping Applications

• 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

Product Overview
1. Step into the realm of cutting-edge piping solutions with our ASTM B740 CuNi15Sn8. Specially engineered by Gansu Hehong New Materials Co., Ltd., this marvel of metallurgy is designed for ultra high-pressure applications, ensuring reliability and performance beyond compare.

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 Our ASTM B740 CuNi15Sn8 boasts unparalleled corrosion resistance, impressive mechanical strength, and superior thermal conductivity, making it an indispensable choice for critical piping needs.

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 the excellence of prolonged service life, reduced maintenance costs, and enhanced safety with our product, formulated to meet the rigorous demands of ultra high-pressure environments.

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 From petrochemicals to power generation, our ASTM B740 CuNi15Sn8 is your go-to solution for a wide array of sectors, including seawater desalination, nuclear power, and marine industries.

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 Delve into the robust physical attributes of our CuNi15Sn8 alloy, featuring exceptional tensile strength, elongation properties, and resilience under extreme conditions.

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 Choose from our specialized processing methods to tailor the alloy to your precise needs, ensuring optimal performance and efficiency.

1) CNS-CSH (Casting Spinodal Hardening) Leverage this method for superior grain refinement and enhanced mechanical properties, suited for demanding applications.

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 exceptional ductility and strength through this process, perfect for complex fabrications.

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) Implement this technique for maximum work hardening, ideal for high-stress environments.

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 Gansu Hehong ensures rigorous quality control at every production stage, guaranteeing products that meet international standards and exceed client expectations.

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 Gansu Hehong New Materials Co., Ltd. stands proudly as part of a prestigious lineage of superior material manufacturers.

 

Jiangyin A hub of industrial innovation, pioneering advancements in copper alloy production. Hehong Precision At the forefront of technology, delivering precision-engineered copper solutions. 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. Synonymous with excellence, HHP COPPER leads the way in innovative solutions and superior quality in the copper alloy industry.

We are specializing at the production of copper and copper alloy (includingadmiralty 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. Our extensive production capabilities ensure that each piece meets the highest standards of innovation and quality, perfectly suited for the most challenging environments.
And we proudly authored the National Standard A testament to our leadership and dedication to advancing copper alloy technology. for copper alloy seamless tubes/pipes used in the demanding field of Nuclear Power Revolutionizing safety and efficiency in one of the world's most stringent industries.!