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ASTM B395 / ASME SB395 / Specification for U-Bend Seamless Copper and Copper Alloy Heat Exchanger and Condenser Tubes supplier & distributor in India

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ASTM B-395 / ASME SB-395
SPECIFICATION FOR U-BEND SEAMLESS COPPER AND 
COPPER ALLOY HEATEXCHANGER AND CONDENSER TUBES

1.Scope 

1.1 This specification covers-end seamless condenser, evaporator, and heat exchange tubes od copper and 
copper alloys up to 2 in., inclusive, in diameter.

Tubes for this application are normally made rom the following copper or copper alloys.



Copper Alloy UNS No.A Previously Used Designation Type of Metal
C10200 OFB oxygen-free without residual doxidants
C12000 DLPB phosphorized, low residual phosphoros
C12200 DHPB phosphorized, high residual phosphoros
C14200 DPAB phosphorized, aresenical
C19200 ... phosphorized, 1? iron
C23000 ... red brass
C44300 Types B. admirlty metals
C44400 C.  
C44500 D  
C60800 ... aluminum bronze
C68700 Type B aliuminum barss
C70600 ... 90-10 copper-nickel
C71000 ... 80-20 copper-nickel
C71500 ... 70-30 copper-nickel

AThe UNS system for copper and copper alloys (see Practice E 527) is a simple expansion of the former standard designation system accomplished b the addition of aprefix "C" and a suffix "00." The suffix can be usd to accmmodate compsition variations of the base alloy.

BDesignations listed in Classification B 224. 1.2 Warning ? Mercury is a definite health hazard in use and disposal. (See 12.1)


Copper Alloy UNS No. Copper Plus Named 
Elements, % min
C60800 99.5
C70400 99.5
C70600 99.5
C71000 99.5
C715000 99.5

  

Copper Alloy UNS No. Copper Plus Named 
Elements, % min
C23000 99.8
C44300 99.6
C44400 99.6
C44500 99.6
C68700 99.5




TABLE1 CHEMICAL REQUIREMENTS 

Copper Alloy No. UNS No. CopperA Tin Aluminum Nickel(incl Cobalt) Lead, max Iron Zinc Manganese Arsenic Antimony Phosphoris Chro
mium		 Other Named Ele-ments
C10200 99.95min ... ... ... ... ... ... ... ... ... ... ... ...
C12000 99.90min ... ... ... ... ... ... ... ... ... 0.004 to 0.012 ... ...
C12200 99.9min ... ... ... ... ... ... ... ... ... 0.015 to 0.040 ... ...
C14200 99.40min ... ... ... ... ... ... ... 0.15 to 0.50 ... 0.015 to 0.040 ... ...
C19200 98.7min ... ... ... ... 0.8 to 1.2 ... ... ... ... 0.01 to 
0.04		 ... ...
C23000 84.0 to 86.0 ... ... ... 0.05 0.05
max		 remainder ... ... ... ... ... ...
C44300 70.0 to 73.0 0.9 to 1.2 ... ... 0.07 0.06
max		 remainder ... 0.02 to 0.06 ... ... ... ...
C44400 70.0 to 73.0 0.9 to 1.2 ... ... 0.07 0.06
max		 remainder ... ... 0.02 to 0.10 ... ... ...
C44500 70.0 to 73.0 0.9 to 1.2 ... ... 0.07 0.06
max		 remainder ... ... ... 0.02 to 
0.10		 ... ...
C60800 remanider ... 5.0 to 6.5 ... 0.10 0.10
max		 ... ... 0.02 to 0.035 ... ... ... ...
C68700 76.0 to 79.0 ... 1.8 to 2.5 ... 0.07 0.06
max		 remainder ... 0.02 to 0.06 ... ... ... ...
C70600 remainder ... ... 9.0 to 11.0 0.05C 1.0 to 1.8 1.0maxC 1.0maxC ... ... ...   C   C
C71000 remainder ... ... 19.0 to 23.0 0.05C 0.50 to 1.0 1.0maxC 1.0maxC ... ...   C ...   C
C71500 remainder ... ... 29.0 to 33.0 0.05C 0.40 to 1.0 1.0maxC 1.0maxC ... ... ... ...   C


 ASliver Counting as copper. 
 
BCopper plus sum of named elements shall be 99.5%, min.  CWhen the product is for subsequent welding applications,
and so specified by the purchaser, zinc shall be 0.50%, max, lead 0.02%, max, phosphorus 0.02%, max, sulfur 0.02%, max, 
and caron 0.05%, max.


TABLE2 EXPANSION REQUIREMENTS 

Temper Designation Copper or Copper Alloy UNS No. Expansion of Tube Outside Diameter in percent of Orifinal Outside Diameter
Standard Former
O61 annealed C19200 30
C23000 20
C44300, C44400, C44500 20
C60800 20
C68700 20
C70600 30
C7100 30
C71500 30
H55 light-drawn C10200, C12000, C12200 20
C14200 20
HR58 Drawn, stress relicved C71500 20


AAT 0.5% extension under load.
Bksi = 1000 psi. 



TABLE3 TENSILE REQUREMENTS 

Copper or Copper Alloy UNS No. Temper Desingnation Tensile Strength min, ksiB Yield Strength,Amin, ksiB Elongation in 2in., min, %
Standard Former
C10200, C12000, C12200, C14200 H55 light drawn 36 30 ...
C19800 O61 annealed 38 12 ...
C23000 O61 annealed 40 12 ...
C44300, C44400, C44500 O61 annealed 45 15 ...
C60800 O61 annealed 50 19 ...
C68700 O61 annealed 50 18 ...
C70600 O61 annealed 40 15 ...
C71000 O61 annealed 45 16 ...
C71500 O61 annealed 52 18 ...
HR58 drawn, stress relieved 72 50 ...
For wall thicknesses up to 0.048 in., incl ... ... ... ... ... 12
For wall thicknesses over 0.048in. ... ... ... ... ... 15




TABLE4 DIAMETER TOLERANCES 

Outside Diameter, in. Wall Thickness, in.
0.032 0.035 0.042 0.049
Diameter Tolerance, plus and minus, in.
Up to 0.500 incl 0.00025 0.0025 0.0025 0.0025
Over 0.500 to 0.740 incl 0.0004 0.004 0.0035 0.003
Over 0.740 to 1.000 incl 0.006 0.005 0.0045 0.004
Over 1.000 to 1.250 incl 0.009 0.008 0.006 0.0045
Over 1.250 to 1.375 incl ... ... 0.008 0.005
Over 1.375 to 2.000 incl ... ... ... 0.006




TABLE5 WALL THICKNESS TOLERANCES 

Wall Thickness, in. Outside diameter, in.
over 1/8 to 5/8, incl over 5/8 to 1, incl wver 1 to 2, incl
Wall Thickness Tolerances, plus and minus in.
0.032, incl to 0.035 0.003 0.003 0.004
0.035, incl to 0.058 0.004 0.0045 0.0045
0.058, incl to 0.083 0.0045 0.005 0.005
0.083, incl to 0.120 0.005 0.0065 0.0065
0.120, incl to 0.134 0.007 0.007 0.0075

TABLE6 TUBE LEG TOLERANCES 

Specified Length, (L)ft Tolerance all plus, in.
up to 20, incl 1/8
Over 20 to 30, incl 5/22
Over 30 to 60, incl 1/4
Over 60 3/8




TABLE7 SQUARENESS TOLERANCES 

Specified Outside Diameter, in. Tolerance
up to 5/8, incl 0.010 in.
Over 5/8 0.016 in./in.




TABLE8 NOTCH DEPTH 

Tube Wall Thickness, in. Tube Outside Diameter
in. in. in. in.
over 1/4 to 5/8, incl over 5/8 to 3/4, incl over 3/4 to 7/8, incl over 7/8 to 1, incl
in Depth of Notch
0.035 0.006 0.006 0.006 ...
0.042 0.0065 0.0063 0.007 0.007
0.049 0.007 0.007 0.0075 0.0075
0.058 0.007 0.0075 0.0075 0.008
0.065 0.0075 0.0075 0.008 0.008
0.072 0.0075 0.0075 0.008 0.0085
0.083 0.0075 0.008 0.0085 0.009
0.095 ... 0.008 0.0085 0.009
0.109 ... 0.009 0.009 0.0095
0.120 ... ... 0.010 0.010
Tube Wall Thickness in. in. in. in.
1 to 1 1/4, incl 1 1/4 to 1 1/2, incl 1 1/2 to 1 3/4, incl 1 3/4 to 2, incl
0.035 ... ... ... ...
0.042 ... ... ... ...
0.049 0.00075 0.008 ... ...
0.058 0.008 0.0085 0.009 0.010
0.065 0.00085 0.009 0.010 0.0105
0.072 0.0085 0.009 0.010 0.011
0.083 0.009 0.0095 0.011 0.012
0.095 0.0095 0.010 0.0115 0.0125
0.109 0.010 0.011 0.012 0.013
0.120 0.011 0.0115 0.0125 0.14




TABLE9 DAIMETER OF DRILLED HOLES 

Tube Outside Diameter Diameter of Drilled Holes, in Drill No.
in.
1/4 to 3/4, incl 0.025 72
Over 3/4 to 1, incl 0.031 68
Over 1 to 1 1/4, incl 0.035 64
Over 1 1/4 to 1 1/2, incl 0.042 58
Over 1 1/2 to 1 3/4, incl 0.046 56
Over 1 3/4 to 2, incl 0.052 55




TABLE10DENSITES 

Copper or Copper Alloy UNS No. Density, lb/in.3
C10200, C12000, C12200 0.323
C14200 0.323
C19200 0.32
C23000 0.316
C44300, C44400, C44500 0.308
C60800 0.295
C68700 0.301
C70600 0.323
C71000 0.323
C71500 0.323

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