Composite Weld Neck Flange

///Composite Weld Neck Flange
Composite Weld Neck Flange 2017-08-30T11:17:16+00:00
copper nickel flanges

Copper Nickel Composite Weld Neck Flanges

composite weld neck flange is made of inner flange , also called collar & backing flange (loose flange).The collar is welded with copper nickel pipes , the backing flange can be active. Collar is the sealing surface, the role of the backing flange is to press them. Because of collar is blocked, backing flange does not contact with the media. This flange connections are applied, in low-pressure and non critical applications, and is a cheap method of flanging , normally used in shipment.

Specification

Inner Flange Grade:Astm B151 UNS C70600 , 7060X,CuNi 90/10,CuNiFer,CuNi10fe1.6mn

Astm B151 UNS C71500 , CuNi 70/30,CuNiFer,CuNi30fe1.6mn

Outer Flange Grade:A105N with galvanized
Standard:DIN 86037 , EEMUA 145
Size::PN10,PN14,16BAR,20BAR,

Product Showcase

Inner Flange / Collar – Composite Weld Neck Flange

Outer Flange – Composite Weld Neck Flange

Chemical Composition

1\Comparison table of International Standard Specifications for CuNi 90/10

 DIN 86019
2.1972
EEMUA 144
UNS 7060X
BS 2871
CN 102
ASTM B466
C70600
JIS H 3300
C7060
MIL-T-16420K
C70600
Ni%9.0-11.010.0-11.010.0-11.09.0-11.09.0-11.09.0-11.0
Fe%1.5-1.81.5-2.01.0-2.01.0-1.81.0-1.81.0-1.8
Mn%0.5-1.00.5-1.00.5-1.0Max.1.00.2-1.0Max1.0
C%Max.0.05Max.0.05Max.0.05Max.0.05 Max.0.05
Pb%Max.0.03Max.0.01Max.0.01Max.0.02Max.0.05Max.0.02
S%Max.0.015Max.0.02Max.0.05Max.0.02 Max.0.02
P%Max.0.02Max.0.02 Max.0.02 Max.0.02
Zn%Max.0.15Max.0.20 Max.0.50Max.0.50Max.0.05
Zr%Max.0.03     
OthersMax.0.30Max.0.30Max.0.30   
Cu%BalanceBalanceBalanceBalanceCu+Ni
+Fe+Mn
Min.99.5
Min.86.5

2\Comparison table of International Standard Specifications for CuNi 70/30

Column 0DIN 17664
2.0882
BS 2871
CN 107
ASTM 466
C71500
JIS H 3300
C7150
NES
780
MIL-T-16420K
C71500
Ni%30.0-32.030.0-32.029.0-33.029.0-33.030.0-32.029.0-33.0
Fe%0.4-1.00.4-1.00.4-1.00.4-1.00.6-1.00.4-1.0
Mn%0.5-1.50.5-1.5Max.1.00.2-1.00.5-1.5Max.1.0
C%Max.0.05Max.0.06Max.0.05Max.0.06Max.0.05
Pb%Max.0.03Max.0.01Max.0.02Max.0.05Max.0.01Max.0.02
S%Max.0.02Max.0.08Max.0.02Max.0.02Max.0.02
P%Max.0.02Max.0.02Max.0.01Max.0.02
Zn%Max.0.5Max.0.50Max.0.50Max.0.50
Others Max.0.30 Max.0.30 Max.0.50Max.0.30Max.0.50
Cu%BalanceBalanceBalanceCuNi+Fe+Mn
Min.99.5
Min.66.5Min.65.0

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