ASTM B111 Emua234 90/10 70/30 Copper Nickel Alloy Tube for Offshore Use

• Customization: Available
• Type: Round
• Standard: ASTM, DIN, JIS, GB
• Model NO.: ASTM
• Composition: Ferrous Steel Scrap
• Technique: Hot Rolled
• Shape: Block
• Surface Treatment: Polished
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Water Tube/Heater Oil/etc
• Grade: Brass, Copper Nickel, Aluminum
• Wall Thickness: 0.2mm-120mm
• Outside Diameter: 2mm-914mm
• Length: 1m, 3m, 6m or as Customer's Request
• Material: C2600 C2680 C2700 C2800 etc
• Shapes: Round, Square, Rectangular
• Certificate: SGS, BV, ISO, TUV, Rosh
• Temper: Soft Annealed, Half Hard
• Service: Bending, Decoiling, Weldeing, Punching, Cutting
• Terms: Fob, CIF, EXW etc
• Delivery Time: 7-30days
• Aplication 1: Industrial Heating and Drilling
• Aplication 2: Metel Treatment System
• Aplication 3: High Temperature Geberater Tube
• End Type: Plain Ends, Bevel End, Threaded End
• Transport Package: PVC
• Specification: customized
• Trademark: EZS
• Origin: Shanghai, China
• HS Code: 741121000
• Production Capacity: 50000ton/Year

Product Description

EZ Steel Industrial Co.,Ltd

EZ Steel Industrial Co.,Ltd is a leading manufacturer of high-performance industrial metal pipelines, specializing in alloy steel, carbon steel, stainless steel, and copper-nickel-based alloy products. With strategically located facilities in Cangzhou, Yangzhou, and Lishui, we deliver globally trusted piping solutions that combine cutting-edge technology, rigorous quality control, and unmatched expertise.

As an integrated manufacturer and trading specialist in metal piping materials, EZS  stands as a premier one-stop solution provider for global clients seeking reliable, customized, and technically superior pipeline products. With decades of expertise spanning production, engineering, and project execution, we deliver unmatched value through our vertically integrated capabilities.

Innovation-Driven R&D Excellence
At the core of our success lies a relentless commitment to technological advancement. Our dedicated R&D center collaborates with leading universities and industry partners to pioneer breakthrough solutions in material science, pipeline durability, and smart manufacturing. We hold multiple patents in anti-corrosion coatings, high-temperature alloy formulations, and precision machining processes, enabling us to provide customized piping systems for extreme operational environments.

World-Class Talent Ecosystem
We pride ourselves on fostering a team of over 500 skilled professionals, including metallurgical engineers, welding specialists, and quality assurance experts. Continuous investment in employee development ensures our workforce stays ahead of industry trends through regular certifications (e.g., ASME, AWS), cross-functional training, and participation in global technical exchanges. Our management philosophy attracts top-tier talent, combining decades of hands-on experience with youthful innovation to drive sustainable growth.

Specification

Scope  
This standard specifies requirements for copper-nickel (Cu-Ni) alloy tubes used in offshore applications, particularly for seawater systems. It covers material properties, dimensions, tolerances, testing, and inspection to ensure reliability in corrosive marine environments.

When ordering Cu-Ni tubes per EEMUA 234, the following should be specified:  

- Alloy designation (e.g., 90/10 Cu-Ni, 70/30 Cu-Ni)  
- Dimensions (outer diameter, wall thickness, length)  
- Temper (e.g., annealed, as-drawn)  
- End finishes (plain, beveled, grooved)  
- Certification requirements (e.g., EN 10204 3.1/3.2)  
- Special testing (if required, e.g., corrosion testing)

Material Codes & Alloys
Common alloys covered:  
- 90/10 Cu-Ni (UNS C70600) – General seawater service  
- 70/30 Cu-Ni (UNS C71500) – Higher corrosion resistance  
- Other variants (if applicable, with trace element controls)

Compliance & Certification

- Compliance with ASTM, EN, or other international standards as applicable.  
- Third-party inspection (if required by purchaser).  

Conclusion  
EEMUA 234 provides a comprehensive specification for Cu-Ni alloy tubes in offshore environments, ensuring material integrity through strict chemical, mechanical, and inspection criteria. It is widely referenced in the oil & gas, marine, and desalination industries.  

 

OD

PACKAGE

PIPE MARKING

Technical Specifications

(Custom configurations available upon request.)

Item	Copper tube ,Brass tube,Bronze tube
Type	Straight copper pipe,Pancake coil copper pipe,Capillary copper pipe
Standard	GB/T1527-2006,JIS H3300-2006,ASTM B75M,ASTMB42,ASTMB111,ASTMB395,
	ASTM B359,ASTM B188,ASTM B698,ASTM B640,etc
Material	T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800,C10910,C10920,
	TP1,TP2,C10930,C11000,C11300,C11400,C11500,C11600,C12000,C12200,C12300,
	TU1,TU2,C12500,C14200,C14420,C14500,C14510,C14520,C14530,C17200,C19200,
	C21000,C23000,C26000,C27000,C27400,C28000,C33000,C33200,C37000,C44300,
	C44400,C44500,C60800,C63020,C65500,C68700,C70400,C70600,C70620,C71000,
	C71500,C71520,C71640,C72200,etc
Shape	Round,Square,Rectangular,Oval,half-round
Round	OD:2-914mm (1/16"-36") WT:0.2-120mm(SCH5S-SCH160S)
Square	Size:2*2-1016*1016mm(1/16"-40") WT:0.2-120mm
Rectangular	Size:2*4-1016*1219mm(1/16"-48") WT:0.2-120mm
Length	1m,2m,3m,6m,or as required
Hardness	1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc
Surface	mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required
Application	1. Pancake Coil for ACR, General Engineering Applications
	2. LWC Coil for ACR, General Engineering Applications
	3. Straight Copper Tubes for ACR and Refrigeration
	4. Inner-grooved copper tube for ACR and Refrigeration
	5. Copper Pipe for Transportation System of water, gas and oil
	6.PE-coated copper tube for water/gas/oil transportation system
	7.Semi-finished Copper tube for industrial applications

Eddy Current Testing (ECT)

How ECT Identifies Defects:

1. Principle of Operation:  
   - A coil carrying an alternating current generates a magnetic field, inducing eddy currents in the conductive tube.  
   - Defects (cracks, pits, voids, inclusions, or wall thickness variations) disrupt these currents, altering the coil's impedance.  
   - Sensors detect these changes, and the system flags irregularities.

2. Types of Defects Detected:  
   - Surface cracks (longitudinal/transverse)  
   - Pinholes & porosity  
   - Corrosion or thinning  
   - Material inconsistencies (e.g., hardness variations)  

3. Key Advantages:  
   - Fast & automated – Suitable for high-speed production lines.  
   - No couplant needed – Unlike ultrasonic testing.  
   - Sensitive to small flaws – Can detect sub-millimeter defects.  
   - Non-contact – Works without damaging the tube.  

- ECT is superior for detecting surface flaws quickly and is ideal for production-line quality control.  
- Hydrostatic testing is still needed to verify pressure resistance and overall structural integrity, especially for critical applications (e.g., oil/gas pipelines).  
- Best practice: Use both methods—ECT for fast defect screening and hydrostatic testing for final validation.  

Would you like to know details on specific industry standards (e.g., ASTM E309, ISO 9304) for these tests?

Company Profile

EZ Steel Industrial Co.,Ltd

A professional manufacturer and package solution provider focusing on carbon steel, stainless steel, copper & nickel alloy pipeline materials.

Why Choose Us?

Other Products

Full-Cycle Manufacturing Expertise
Comprehensive Inventory Management
Project-Centric Bundled Solutions
Technical Excellence Across the Value Chain

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FAQ

Q: What's your minimum order quantity?
A: Our minimun quantity is 500 Kg. We also can offer you samples.
Q: What's your delivery time?
A: Our normal delivery time is 7-30 days, and it depends on your quantity and items. Of course, if you need products urgently, we also will consider arranging it firstly.
Q: What's the price of your product?
A: Our prices are based on the material grade, size, quantity and physical performance etc. So if you can offer us the detailed information, then we can give you the best reasonable price. Also, we can do special size and color for customers.
Q: What's your after-sales service?
A: We have two ways to handle claims by replacement and deduction. Of course, if the materialis not good used by wrong parameter from customer, we won't be responsible.
Q: Why do you think I will want to buy from you?
A: We have advantages with 25 years of professional experiences in manufacturing & designing, advanced technology & the first-class equipment, perfect logistics management, high-quality after-sales service and competitive price.