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ASME SB111 C68700 Arsenical Aluminum Brass U Bend Seamless Tube With Impingement Attack

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Ms. Joyce Xia

joyce@steelseamlesspipe.com

+8615940871588

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ASME SB111 C68700 Arsenical Aluminum Brass U Bend Seamless Tube With Impingement Attack

Nama merek:	YUHONG
Nomor Model:	ASME SB111 C68700
MOQ:	Air Dingin Bawaan
Harga:	dapat dinegosiasikan
Rincian kemasan:	Kotak kayu lapis / Kotak Besi / Bundel dengan tutup plastik
Ketentuan Pembayaran:	L/C,T/T

Informasi Rinci

Deskripsi Produk

Informasi Rinci

Tempat asal:

Sertifikasi:

ABS, LR, GL, DNV, NK, TS, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015

Nama Produk:

U Bend Seamless Tube

Spesifikasi & Bahan:

ASME SB111 C68700

Kode:

Permukaan:

Dipoles

jenis:

Mulus

Aplikasi:

Penukar panas, Kondensor, Evaporator...

Menyediakan kemampuan:

Menurut permintaan pelanggan

Menyoroti:

ASME SB111 C68700 brass U bend tube

arsenical aluminum brass seamless tube

copper alloy heat exchanger tube

Deskripsi Produk

YUHONG brand goods have been already exported to more than 85 countries With more than 35 years' experience, because of strict quality control policy, excellent sales service, delivery on time. YUHONG won more and more new clients and got more and more repeat orders from old clients, in YUHONG People's mind: Quality is First Important!

ASME SB111 C68700 Arsenical Aluminum Brass U Bend Seamless Tube With Impingement Attack

ASME SB111 C68700 Arsenical Aluminum Brass U Bend Seamless Tube is a seamless tube manufactured from C68700 arsenical aluminum brass in compliance with ASME SB111 standard. It is produced by seamless cold‑drawn or hot‑extruded process followed by U‑bending. The material contains copper, zinc, aluminum, and a trace amount of arsenic, offering excellent resistance to seawater corrosion, impingement attack, and dezincification. This U‑bend seamless tube is widely used in heat exchangers, condensers, and tube bundles for marine, power plant, and desalination applications.

UNS/ASTM	DIN	GB	BS	JIS	ISO	GOST
C68700	CuZn20Al2	HAl77-2	CZ110	C6870	CuZn20Al2	ЛAМЦ77-2-0.05

1.Chemical & Mechanical Properties

ASME SB111 C68700 Chemical Composition (%)
Cu	Al	Pb	Fe	Zn	As
76.0-79.0	1.8-2.5	≤ 0.07	≤ 0.06%	REM	0.02-0.06

Mechanical Properties

Temper Designation

Annealingtemperature, ℃

Tensile Strength, min

Yield Strength, min

Hardness

Vickers

Code

Name

＞650

ksi

Mpa

ksi

Mpa

≤150

O61

Annealed

345

125

2. Key Advantages

Aluminum forms a dense protective film of aluminum oxide on the surface, which can resist the erosion of seawater and brackish water for a long time.
It is particularly suitable for high-flow-rate cooling water environments, and can effectively avoid pipe wall thinning or perforation caused by high-speed fluid impact.
Adding trace amounts of arsenic (As) inhibits the selective dissolution of zinc in brass, preventing the formation of a loose copper skeleton and the risk of leakage.
With a thermal conductivity of approximately 100–121 W/(m·K), significantly higher than that of stainless steel, it can effectively improve the heat exchange efficiency of heat exchangers.
Suitable for alternating temperature or pressure conditions, reducing the risk of cracking failure during long-term operation.
It outperforms ordinary brass, and its corrosion resistance life is close to that of higher-cost copper-nickel alloys or stainless steel, but its price is much lower.

3. Key Applications

Shipbuilding and Marine Engineering: Used in seawater cooling systems, condensers, and heat exchangers.
Thermal and Nuclear Power Generation: Used in heat exchange equipment such as water heaters and oil coolers in coastal power plants.
Seawater Desalination: Widely used in multi-stage flash evaporation, reverse osmosis, and other seawater desalination equipment.
Petrochemical Industry: Used in process pipelines for treating salty or other corrosive media.

4. Test

Mechanical Testing: Tensile test, Hardness Test, Flattening Test, Flaring Test
Chemical Analysis – Spectro Analysis
Positive Material Identification – PMI Testing
Flattening Test
Micro and MacroTest
Pitting Resistance Test
Intergranular Corrosion (IGC) Test

*Mechanical Testing

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rincian produk

Tabung bertabur

Tabung sirip padat

Tabung bersirip bergerigi

Tabung G Fin yang tertanam

Tabung Sirip Ekstrusi

Tabung sirip luka

Tabung sirip rendah

Tabung Fin persegi

Tabung Pinus Panjang

Tabung Transfer Panas yang Ditingkatkan

Dukungan tabung sirip

Kembali Bend

Tabung penukar panas

Tabung Penukar Panas Stainless Steel

Tabung penukar panas stainless steel dupleks

Tabung penukar panas baja tahan karat super dupleks

Tabung penukar panas baja paduan nikel