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ASTM B111 UNS C68700 C44300 C68700 C70400 C70600 C71500 C71640 ALUMINUM BRASS / COPPER NICKEL U BEND TUBE

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ASTM B111 UNS C68700 C44300 C68700 C70400 C70600 C71500 C71640 ALUMINUM BRASS / COPPER NICKEL U BEND TUBE

Brand Name : YUHONG

Model Number : ASTM B111, ASTM B395, ASTM B187, ASTM B152. ASTM B111 C68700

Certification : ABS, BV, DNV-GL , PED, TUV, LR, KR, NK, CCS.

Place of Origin : CHINA

MOQ : 1PC

Payment Terms : L/C,T/T

Delivery Time : 7 DAYS

Packaging Details : Ply-wooden Case /Iron Case/ Bundle with plastic Cap

Product Name : Copper Alloy U Bend Tube

Standard : ASME B111

Material : UNS C68700 (CW702R)

Type : Seamless

Shape : U bend tube

Surface : Polished

Finish : Cold Drawn

Application : condenser, heat-exchangers,boiler,cooler,etc.

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ASTM B111 C68700 Aluminum Brass Seamless U Bend Tube for cooling and heating

ASTM B111 C68700 Aluminum Brass tube, UNS CDA101, ASTM B111, ASTM B395, ASTM B187, ASTM B152. ASTM B111 C68700 has especially good corrosion resistance properties in sea water. Aluminum Brass Tube is a copper zinc alloy containing aluminum and small amount of arseric which is added as an inhibitor against dezincification. Inhibited Aluminum Brass resists the action of high velocity salt and brackish water and is commonly used for condenser tube. The outstanding characteristic of Aluminum Brass is the high resistance to impringement attack. Aluminum Brass tubes are highly accepted and one of the extensively used material for various industrial applications.

Specification

ASTM B111/B111M Standard Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock.

Standard Grade ASTM B111 C68700 EN 12451 CuZn20Al2As DIN 17660/1785 CuZn20Al2 BS 2871 CZ 110 JIS H3300 C6870 GB/T 8890 HAL 77-2
Cu 76.0-79.0 76.0-79.0 76.0-79.0 76.0-78.0 76.0-79.0 76.0-79.0
Al 1.8-2.5 1.8-2.3 1.8-2.3 1.8-2.3 1.8-2.5 1.8-2.5
Fe 0.06 max 0.07 max 0.07 max 0.06 max 0.06 max 0.06 max
Pb 0.07 max 0.05 max 0.07 max 0.07 max 0.07 max 0.03 max
Zn Bal. Bal. Bal. Bal. Bal. Bal.
As 0.02-0.10 0.02-0.06 0.02-0.035 0.02-0.06 0.02-0.06 0.03-0.06
P - 0.01 max 0.01 max - - 0.02 max
Mn - 0.1 max 0.1 max - - -
Total Impurities - 0.3 max 0.1 max 0.3 max - 0.3 max
Condition O61 R390 F39 M O M
- R340 F34 TA - Y2
- - - O - -
Yield Strength N/mm2 125 min 150 min 150-230 - - -
- 120 min 120-180 - - -
- - - - - -
Tensile trength N/mm2 345 min. 390 min - - 373 min 370min
- 340 min - - - 350 min
- - - - - -
Elongation (%) - 45 min 45 min - 40 min 40 min
- 55 min 55 min - - 50 min
- - - - - -
Hardness Hv5 - - - 150 min - -
- - - 85-110 - -
- - - 75 max - -

Chemical requirements

Copper or copper alloy UNS No. Copper TIN Al Ni incl Co Pb max Fe max Zn max Mn max As Sb P max Cr Other
C44300 70.0-73.0 0.9-1.2     0.07 0.06 remainder   0.02-0.06        
C44400 70.0-73.0 0.9-1.2     0.07 0.06 remainder     0.02-0.10      
C44500 70.0-73.0 0.9-1.2     0.07 0.06 remainder       0.02-0.10    
C60800 remainder   5.0-6.5   0.1 0.1     0.02-0.35        
C61300 remainder 0.20-0.50 6.0-7.5 0.15 max 0.01 2.0-3.0 0.1 0.2     0.015    
C61400 remainder   6.0-8.0   0.01 1.5-3.5 0.2 1     0.015    
C68700 76.0-79.0   1.8-2.5   0.07 0.06 remainder   0.02-0.06        
C70400 remainder     4.8-6.2 0.05 1.3-1.7 1 0.30-0.80          
C70600 remainder     9.0-11.0 0.05 1.0-1.8 1 1          
C70620 86.5 min     9.0-11.0 0.02 1.0-1.8 0.5 1     0.02   C.05 max S.02 max
C71000 remainder     19.0-23.0 0.05 0.50-1.0 1 1          
C71500 remainder     29.0-33.0 0.05 0.4-1.0 1 1          
C71520 65.0 min     29.0-33.0 0.02 0.4-1.0 0.5 1     0.02   C.05 max S.02 max
C71640 remainder     29.0-32.0 0.05 1.7-2.3 1 1.5-2.5         C.06 max S.03 max
C72200 remainder     15.0-18.0 0.05 0.50-1.0 1 1       0.30-0.70 Si.03 max Ti.03 max

Mechanical Properties

Form Temper Temper Code Tensile Strength (ksi) YS-0.5% Ext (ksi) Elongation (%) Rockwell B scale Rockwell F scale Section Size (in) Cold Work (%)
Flat Products As Hot Rolled M20 55 Typ 20 Typ 45 Typ 35 Typ - 1  
Rod 1/2 Hard H02 75 Typ 70 Typ 15 Typ 80 Typ - 1 20
Tube Nominal Grain Size 0.025 mm OS025 60 Typ 25 Typ 45 Typ 45 Typ 80 Typ - -
Nominal Grain Size 0.035 mm OS035 54 Typ - 45 Typ 36 Typ 77 Typ - -

Applications

1. Aluminum Brass Tube for condenser and heat-exchangers.

2. Water Evaporators.

3. Boiler Blowdown Heat Exchangers

4. Air coolers.

5. Gland Steam Condensers.

6. Steam Ejector.

7. Turbine Oil Coolers.

8. Fuel Oil Heaters.

9. Compressed Air Inter and After Coolers.

10. Ferrules, Oil Well Pump Liner, and Distiller etc.

Expansion Test

1.Tube specimens selected for test shall withstand the expansion shown in standard when expanded in accordance with Test Method B 153. The expanded tube shall show no cracking or rupture visible to the unaided eye.

2.Hard-drawn tubes not end annealed are not subject to this test. When tubes are specified end annealed, this test is required and shall be performed on the annealed ends of the sampled tubes.

3.Tubes for ferrule stock are not subject to the expansion test.

Flattening Test

1.Test Method—Each test specimen shall be flattened in a press at three (3) places along the length, each new place to be rotated on its axis approximately one third turn from the last flattened area. Each flattened area shall be at least 2 in. in length. A flattened test-specimen shall allow a micrometer caliper set at three (3) times the wall thickness to pass freely over the flattened area. The flattened areas of the test specimen shall be inspected for surface defects.

2.During inspection, the flattened areas of the test- specimen shall be free of defects, but blemishes of a nature that do not interfere with the intended application are acceptable.

3.Tubes for ferrule stock are not subject to flattening test.

Residual Stress Test

1.A residual stress test is required to be performed only for Copper Alloy UNS Nos. C23000, C28000, C44300, C44400, C44500, C60800, C61300, C61400, and C68700.

2.Unless otherwise specified, the producer shall have the option of testing the product to either the mercurous nitrate test, Test Method B 154, or the ammonia vapor test, Test Method B 858, as prescribed below.

Nondestructive Testing

Eddy-Current Test—Each tube shall be passed through an eddy-current testing unit adjusted to provide information on the suitability of the tube for the intended application. Testing shall follow the procedures of Practice E 243.

Hydrostatic Test

Each tube shall stand, without showing evidence of leakage, an internal hydrostatic pressure sufficient to subject the material to a fiber stress of 7000 psi [48 MPa] as determined by the following equation for thin hollow cylinders under tension. The tube need not be tested at a hydrostatic pressure of over 1000 psi [7.0 MPa] unless so specified.

P 5 2St/~D 2 0.8t!

where:
P = hydrostatic pressure, psig [MPa];

t = thickness of tube wall, in. [mm];

D = outside diameter of the tube, in. [mm];

and S = allowable stress of the material, psi [MPa].

Materials and Manufacture:

1.When specified in the purchase order or contract, the purchaser shall be furnished certification that samples representing each lot have been either tested or inspected as directed in this specification and requirements have been met.

2.When identified in the ordering information that product is purchased for ASME Boiler and Pressure Vessel Code applications, certification to this specification is mandatory.

Note:

1.Mill test certificates will be issued

2.All tubes shall be supplied as per applicable ASTM B111 /B 111M Specification.


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