Name: ASTM B283 C70620 CuNi 90/10 Copper Alloy Steel Flange For Marine And Offshore Engineering
Brand: YUHONG HOLDING GROUP CO., LTD
SKU: ASTM B283 C70620
Availability: InStock

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ASTM B283 C70620 CuNi 90/10 Copper Alloy Steel Flange For Marine And Offshore Engineering

ASTM B283 CuNi 90/10 flange

marine copper alloy steel flange

offshore engineering C70620 flange

Tempat asal:

Cina

Nama merek:

YUHONG

Sertifikasi:

ISO 9001-2015

Nomor model:

ASTM B283 C70620

bicara sekarang

Minta Kutipan

Rincian produk

Standar:

ASTM B283

Bahan:

C70620

Tipe Flensa:

Flens

Tekanan:

Kelas 150# hingga 2500#

Rentang Ukuran:

Dapat disesuaikan

Standar Flensa:

ANSI B16.5

Menyoroti:

ASTM B283 CuNi 90/10 flange

marine copper alloy steel flange

offshore engineering C70620 flange

Syarat Pembayaran & Pengiriman

Kuantitas min Order

1 buah

Harga

NON

Kemasan rincian

Kotak kayu, wadah ply-wooden dengan bingkai baja

Waktu pengiriman

1 - 4 bulan

Syarat-syarat pembayaran

T/T

Menyediakan kemampuan

300 Ton/Bulan

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Hubungi Kami

+8613625745622

nirit@steelseamlesspipe.com

0086-574-88013900

bicara sekarang

Deskripsi Produk

ASTM B283 C70620 CuNi 90/10 Copper Alloy Steel Flange For Marine And Offshore Engineering

ASTM B283, corresponding to ASME SB283, is a standard specification for copper and copper alloy forgings, applicable to copper and copper alloy forgings produced by hot pressing, including flanges, fittings, and other pressure-bearing components. UNS C70620 is a 90/10 copper-nickel alloy (90% copper - 10% nickel), optimized for welding applications and marine conditions based on the standard 90-10 copper-nickel alloy UNS C70600, with impurity control improvements.

The standard explicitly states: "Copper Alloys UNS Nos. C70620 and C71520 are for product intended for welding applications"—this is a core distinction between C70620 and the general-purpose C70600 material.

ASTM B283 C70620 flanges are high-performance copper-nickel alloy forged flange solutions for marine engineering, seawater pipeline systems, desalination equipment, and chemical corrosion-resistant pipelines. They offer excellent corrosion resistance, good weldability, and stable mechanical properties in seawater environments.

Chemical Composition (UNS C70620)
Element	Content Range (%)	Standard Reference
Cu (Copper)	≥ 86.5	ASTM B283 / UNS C70620
Ni (Nickel)	9.0 – 11.0	ASTM B283 / UNS C70620
Fe (Iron)	1.0 – 1.8	ASTM B283 / UNS C70620
Mn (Manganese)	≤ 1.0	ASTM B283 / UNS C70620
Zn (Zinc)	≤ 0.50	ASTM B283 (welding grade)
Pb (Lead)	≤ 0.02	ASTM B283 (welding grade)
C (Carbon)	≤ 0.05	ASTM B283 (welding grade)
P (Phosphorus)	≤ 0.02	ASTM B283 (welding grade)
S (Sulfur)	≤ 0.02	ASTM B283 (welding grade)

Mechanical Properties (ASME SB283 / ASTM B283 Standard Minimum)
Condition	Size Range	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Standard Reference
Hot forged air cooled (M10)	All sizes	≥ 276 (40 ksi)	≥ 103 (15 ksi)	≥ 30	ASTM B283
Hot forged air cooled (M10)	Specific cross-section	≥ 310 (45 ksi)	≥ 124 (18 ksi)	≥ 30	ASTM B283

Physical Properties (Typical Values, 20°C Annealed)
Parameter	Value	Unit
Density	8.89	g/cm³
Elastic Modulus	130	GPa
Thermal Conductivity (20°C)	50.2	W/(m·K)
Specific Heat Capacity	0.38	J/(g·K)
Coefficient of Linear Expansion (20-300°C)	19	×10⁻⁶/K
Electrical Conductivity	5	MS/m (approx. 9% IACS)
Melting Range	1100 – 1145	°C

Core Differences Between C70620 and C70600
Comparison Item	C70620 (Welding Grade)	C70600 (Standard Grade)
Weldability Design	Specifically designed for welding applications; standard explicitly states "intended for welding applications"	Can be used for welding, but impurity limits are less strict than C70620
Impurity Control (Zn, Pb, C, P, S)	Zn ≤0.50%, Pb ≤0.02%, C ≤0.05%, P ≤0.02%, S ≤0.02%	Zn ≤1.0%, Pb ≤0.05%, relatively looser impurity control
Iron (Fe) Content	1.0% – 1.8%	1.0% – 1.8% (essentially the same)
Seawater Corrosion Resistance	Good (welding grade)	Good (general grade)
Cost	Between C70600 and high-purity nickel alloys	Lower

Applications:

Marine Engineering and Shipbuilding: Flange connections for seawater cooling systems, fire protection systems, ballast water pipelines, and seawater delivery pipelines.
Seawater Desalination Plants: Seawater intake, pretreatment, and high-pressure pump inlet/outlet flanges.
Coastal Power Plants: Condenser and cooler connection flanges for seawater circulating cooling system pipelines.
Offshore Oil and Gas Platforms: Seawater injection systems, fire water pipelines, and public seawater systems.
Chemical and Process Industries: Corrosion-resistant pipeline flanges for chloride-containing media.

ASTM B283 C70620 CuNi 90/10 Copper Alloy Steel Flange For Marine And Offshore Engineering 0

Penilaian & Ulasan

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Semua Ulasan

Robert Miller

United States Jan 7.2026

Bermanfaat (2)

Fully meets the rigorous requirements of TEMA R standards. We used these SA266 Grade 2N flanges for a refinery project in Texas. The machining precision is impressive, and the sealing face finish is absolutely perfect.

A*d

United Arab Emirates Nov 26.2025

Bermanfaat (3)

The packaging was very solid; even after long-distance sea freight, there were no dents on the sealing faces.

C*a

Brazil Dec 14.2024

Bermanfaat (3)

We were looking for a reliable supplier for offshore platforms, and the quality of these tube side flanges exceeded expectations. The forging flow lines of the SA266 Gr.2N are very intact.

Tag：

ASTM B283 C70620 CuNi 90/10 Copper Alloy Steel Flange For Marine And Offshore Engineering

ASTM B283 CuNi 90/10 flange

marine copper alloy steel flange

offshore engineering C70620 flange

ASTM B283 CuNi 90/10 flange

marine copper alloy steel flange

offshore engineering C70620 flange

ASTM A694 F42 Carbon Steel Flange Weld Neck RTJ High Pressure Pipeline 42ksi Kekuatan Hasil Untuk API 5L X42

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Peringkat Umum

Cuplikan Penilaian

Semua Ulasan

flensa bejana tekanan

Flensa Penukar Panas

Flang baja tahan karat tempa

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