ASME SB111 C68700 O61 Seamless Tube Dezincification Resistant for Saltwater Condenser

ASME SB111 C68700 O61 Seamless Tube Dezincification Resistant for Saltwater Condenser

This ASME-certified seamless tube, compliant with SB111 standards, ensures superior corrosion resistance and thermal conductivity in heat exchanger tube bundles. The C68700 aluminum brass (O61 annealed) meets rigorous pressure vessel requirements, ideal for marine and industrial applications demanding ASME-compliant durability and leak-proof performance.

ASME SB111 C68700 Aluminum Brass Seamless Tube Chemical Requirments

Alloy

Chemical Composition %

Copper

Tin

Aluminum

Nickel

Lead

Iron

Zinc

Manganese

Arsenic

Antimony

Phosphorus

Chromium

C68700

76.0-79.0

1.8-2.5

0.07

0.06Max

Remainder

0.02-0.06

ASME SB111 C68700 Aluminum Brass Seamless Tube Expansion Requirements

Temper Designation		Copper Or Copper Alloy Uns No.	Expansion Of Tube Outside Diameter, In Percent Of Orignal Outside Diameter
Standard	Former
O61	Annealed	C19200	30
		C23000	20
		C28000	15
		C44300, C44400, C44500	20
		C60800	20
		C61300, C61400	20
		C68700	20
		C70400	30
		C70600	30
		C71000	30
		C71500	30
		C71640	30
		C72200	30
H55	Light-Drawn	C10100, C10200, C10300, C10800, C12000, C12200	20
		C14200	20
		C19200	20
		C70400	20
		C70600	20
		C72200	20
H50	Drawn, Stress Relieved	C71500	20
		C71640	20
-	Hard-Drawn, End Annealed	C10100, C10200, C10300, C10800, C12000, C12200, C14200	30

ASME SB111 C68700 Aluminum Brass Seamless Tube Tensile Requirements

Copper or Copper Alloy Uns No.	Temper Designation		Tensile Strength Min Ksi	Yield Strength Min Ksi	Elongation In 2 In., Min%
	Standard	Former
C10100, C10200, C10300, C10800, C12000, C12200, C14200	H55	Light-Draw N	36	30	-
C10100, C10200, C10300, C10800, C12000, C12200, C14200	H80	Hard-Draw N	45	40	-
C19200	H55	Light-Draw N	40	35	-
C19200	H80	Hard-Draw N	48	43	-
C19200	O61	Annealed	38	12	-
C23000	O61	Annealed	40	12	-
C28000	O61	Annealed	50	20	-
C44300, C44400, C44500	O61	Annealed	45	15	-
C60800	O61	Annealed	50	19	-
C61300, C61400	O61	Annealed	70	30	-
C68700	O61	Annealed	50	18	-
C70400	O61	Annealed	38	12	-
C70400	H55	Light-Draw N	40	30	-
C70600	O61	Annealed	40	15	-
C70600	H55	Light-Draw N	45	35	-
C71000	O61	Annealed	45	16	-
C71500	O61	Annealed	52	18	-
C71500:
Wall Thickness Up To 0.048 In., Incl	Hr50	Draw N, Stress-Relieved	72	50	12
Wall Thickness Over 0.048 In.	Hr50	Draw N, Stress-Relieved	72	50	15
C71640	O61	Annealed	63	25	-
C71640	Hr50	Draw N, Stress-Relieved	81	58	-
C72200	O61	Annealed	45	16	-
C72200	H55	Light-Draw N	50	30	-

Copper products that GNEE can provide

copper pipe

High quality 99.9% pure copper pipe / straight copper tube / copper alloy pipe
Standard	ASTM,DIN,BS,CDA,JIS,GB
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,etc.
Specifications	Round:wall thickness:0.2mm~120mm,outside diameter:2mm~910mm Square:wall thickness:0.2mm~120mm,size:2mm2mm~1016mm1016mm Rectangularwall thickness:0.2mm~120mm,size:2mm4mm~1016mm1219mm
Length	3m,5.8m, 6m, 11.8m, 12m, 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.
Price term	EXW, FOB, CFR, CIF, etc.
Payment term	T/T
Package	Export standard package: bundled wooden box, suit for all kinds of transport, or be required.
Delivery time	According to order quantity
Export to	Singapore,Indonesia,Ukraine,Korea,Thailand, Vietnam, Saudi Arabia, Brazil, Spain, Canada, USA, Egypt, Kuwait, Dubai, Oman, Kuwait, Peru, Mexico, Iraq, Russia,Malaysia, etc.
Application	Copper pipe is the first choice of residential housing water pipes, heating, cooling pipes installed.Copper products are widely used in aviation, aerospace, ships, military industry, metallurgy, electronics, electrical, mechanical, transportation, construction and other fields of the national economy.

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copper rod/bar

Straight copper rod/copper round bar
Standard	ASTM,DIN,BS,CDA,JIS,GB
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,etc.
Specifications	Diameter:3~200mm
Length	3m,5.8m, 6m, 11.8m, 12m, 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.
Price term	EXW, FOB, CFR, CIF, etc.
Payment term	T/T
Package	Export standard package: bundled wooden box, suit for all kinds of transport, or be required.
Delivery time	According to order quantity
Export to	Singapore,Indonesia,Ukraine,Korea,Thailand, Vietnam, Saudi Arabia, Brazil, Spain, Canada, USA, Egypt, Kuwait, Dubai, Oman, Kuwait, Peru, Mexico, Iraq, Russia,Malaysia, etc.
Application	A copper rod is a type of colored metal processing bar stock with high electrical conductivity. It is mainly divided into brass rods and copper rods. It is applied in water heating and bathroom fittings, small hardware, valves, marine pumps, atomizing device structural components, friction accessories, etc.

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copper plate/sheet/strip

Size	Width: 10mm to 2000mm, Thickness: 10mm to 500mm, Length: 0.5m to 12m, All sizes can be according to customer's requirements.
Hardness	1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard.
Surface	Polished,bright,oiled,hair line,brush,mirror,or as required
Package	Plastic film with Wooden case or wooden pallet
Delivery time	Prompt delivery or upon your order quantity.
Quality Control	Mill Test Certification is supplied with shipment,Third Part Inspection is acceptable.
Application	widely used inair conditioners,refrigerators,electric,solar water heater, polished pipe an be used in decorative,such as stair rail. Also can be made according to your required.
Shape	Round, Square, Oval, can be customized

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copper wire

Item	Copper Wire
Standard	ASTM,DIN,BS,CDA,JIS,GB
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
Specifications	As required.
Length	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.
Price term	EXW, FOB, CFR, CIF, etc.
Payment term	T/T
Package	Export standard package: bundled wooden box, suit for all kinds of transport, or be required.
Delivery time	According to order quantity
Application	Copper wire, as a conductive material, is widely used in power transmission and electronic devices. Transformers, inductors, connectors and other components are likely to use copper wire. Besides, the windings of motors and generators in industrial equipment may also be important application scenarios of copper wire.

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Copper CNC machined parts

Custom CNC Machining Parts of Most Materials
Quotation	According to your drawing(size, material, thickness, processing content, and required technology, etc)
Materials Avaiable	Brass,Stainless Steel,Q235&Q345 steel, Zinc-plate Sheet,Stainless Steel, Aluminum,Copper, etc.
Surface Treatment	Zinc Plating, chrome plate, powder coating, anodizing, wire drawing, silk-screen printing, etc
Processing	Laser Cutting, Precision Stamping, CNC Bending, CNC Milling, CNC Turning, Threading, Riveting, Drilling, CNC Punching,Die Casting, Laser Welding, etc.
Testing Equipment	CMM/Tool microscope/multi-joint arm/Automatic height gauge/Manual height gauge/Dial gauge/Roughness measurement
Drawing Formats	PRO/E, Auto CAD, Solid Works , UG, CAD / CAM / CAE, PDF
Our Advantages	1.) 24 hours online service & Quickly Quote/Delivery. 2.) 100% QC quality inspection before delivery, and can provide quality inspection form. 3.) 18+ years of experience in the CNC machining area and have a senior design team to offer perfect modification suggestions.
Tolerance丨Surface Roughness	Generally +/-0.1-0.2mm
Sample service	Avaliable before bulk order. Samples charge according your design, The sample fee can be used as the payment for mass goods.

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About Us

Founded in 2008, we specialize in exporting premium copper products. Our manufacturing leverages continuous casting lines and precision drawing machines. Rigorous quality control, including eddy current testing and spectrometer analysis, guarantees the superior performance of our copper tubes and coils for global applications.

If you need any help, please contact us immediately!
Email address：sales@gneemetal.com

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200+

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8000+

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18+

Years Experience