ASTM B111 ASME SB111 C68700 Aluminum Brass Tube For Heat Exchanger

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ASTM B111 ASME SB111 C68700 Aluminum Brass Tube For Heat Exchanger

Brand Name	YUHONG
Model Number	ASTB111 ASME111 C68700
Certification	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin	China
Minimum Order Quantity	100KGS
Price	Negotiable
Payment Terms	T/T, L/C AT SIGHT
Supply Ability	1000 tons per month
Delivery Time	Depends on quantity
Packaging Details	Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Name	Aluminum brass tube
Standard	ASTM B111 / ASME SB111
Material	C68700/CuZn20Al2As/HAL77-2
Type of productis	Seamless tube
TPI	BV, SGS, IEI, MOODY, DUV....
NDT	ET / HT

Detailed Product Description

ASTM B111 ASME SB111 C68700 Aluminum Brass Tube for Heat Exchanger

Description

It has high strength and hardness, good plasticity, and can be processed under pressure in cold and hot states. It has good corrosion resistance to seawater and brine, and resistance to impact corrosion, but it has the tendency of dezincification and corrosion rupture. Used for ships and other condensing pipes and other corrosion-resistant parts.

Chemical Composition

Element	Weight %
Copper	76.0-79.0
Zinc	Reminder
Aluminium	1.8-2.5
Arsenic	0.02-0.06
Lead	0.07
Iron	0.06 max

Mechanical Properties

Copper or Copper Alloy UNS NO.	Temper Designation		Tensile Strength	Yield Strength	Elongation in 2 in.,
Copper or Copper Alloy UNS NO.	Code	Former	min ksi(min MPa)	min ksi(min MPa)	min %
C68700	O61	annealed	50(345)	18(125)	---

Equivalent Grade of C68700

Material Designation	Corresponding Material Symbol
Material Designation	GB/T8890	ASTM B111	BS2871	JIS H3300	DIN1785
Aluminums Brass	HAL77-2	C68700	CZ110	C6870	CuZn20Al2

Standard	BS 2871 PART3	ASTM B 111	DIN 1785	NFA 51 102	JIS H3300	IS 1545
Symbol	CZ 110	C 68700	CuZn20AI2	CuZn22AI2	C 6870	CuZn21AI2As
Cu	76.0-78.0	76.0-79.0	76.0-79.0	76.0-79.0	76.0-79.0	76.0-78.0
Al	1.8-2.3	1.8-2.5	1.8-2.3	1.8-2.5	1.8-2.5	1.8-2.3
Pb	0.07	0.07	0.07	0.07	0.07	0.07
Ni	-	-	0.1	-	-	-
Fe	0.06	0.06	0.07	0.06	0.06	0.06
Zn	REM'DER	REM'DER	REM'DER	REM'DER	REM'DER	REM'DER
As	0.02-0.06	0.02-0.06	0.02-0.35	0.02-0.06	0.02-0.06	0.02-0.06
P	-	-	0.01	-	-	-
Total Impurities Max.					-
	0.03	-	0.1	0.3	-	0.3
Condition	M	61	F39	-	O	O
	TA	-	F34	-	-	TA
	O	-	-	-	-	D
Yield Strength n/mm2	-	125	1 50-230	-	-	400Mpa Max.
	-	105	120-180	-	-	355Mpa Min.
	-	-	-	-	-	415Map
Tensile n/mm2 Minimum	-	345	390	-	373	-
	-	-	340	-	-	-
Elng'Tion Percent (%)	-	-	45Min.	-	40Min.	85Max.
	-	-	55Min.	-	-	80-110
	-	-	-	-	-	130Min.
Hardness HV5 -	150Min	-	-	80-130	-	-
	85-110	-	-	-	-	-
	75Max.	-	-	-	-	-
Grain Size mm (75X)	0.05Max.	0.010-0.045	-	0.010-0.045	0.010-0.045	0.010-0.045

Characteristic

A Copper Zinc Alloy containing tin and small amount of Arsenic, which is added as an inhibitor against dezincification.

The pressure of Tin imparts to the alloy good corrosion resistance in a moderately polluted river water and clean seawater, either stagnant or slow moving (upto about 2 mtrs/sec.). The most common and wrought form is tube for heat exchange equipment. Guide to the selection of tube material:Clear river, Lake or Canal Water.a.

Dissolved salts more than 2000 ppm.b. Chloride less then 20 ppm.c. H2S and Ammonia is less than 1 ppm.d. Suspended solids less than 25 ppm.e. For temperature more than 2000C and less than 4500 C.Permissible average velocity of water 1.8-2.0 meters/sec.

Application

Heat Exchangers
Refineries
Power Plants
Desalination Plants
Ship Building & Ship Repairs
Condensers
Ferrules
Distillers

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C68700 Copper Alloy Seamless Tube ASTM B111 For Heat Exchangers SGS Approved for sale


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