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Reference Table Details

Forged Carbon Steel Lap Joints

150 lb. A105 Forged Carbon Steel Lap Joints
Hot Dip Galvenized (for use with Type-A Stub Ends)

All Flanges are manufactured in the USA, sizes 1/2"-12"

forged carbon steel lap joints

Normal
pipe size
Outside diameter
of flange

O
Thickness
of flange

Q
Diameter
of hub at base

X
Length
thru hub

Z
Diam.
of bore

B
Radius


r
Drilling Template Approx.
weight
in pounds
Number of holes Diam. of bolts Diam. of bolt circle
1/2 3 1/2 7/16 1 3/16 5/8 .90 1/8 4 1/2 2 3/8 1
3/4 3 7/8 1/2 1/2 5/8 1.11 1/8 4 1/2 2 3/4 1 1/2
1 4 1/4 9/16 1 15/16 11/16 1.38 1/8 4 1/2 3 1/8 2
1 1/4 4 5/8 5/8 2 5/16 13/16 1.72 3/16 4 1/2 3 1/2 2 1/2
1 1/2 5 11/16 2 9/16 7/8 1.97 1/4 4 1/2 3 7/8 3
2 6 3/4 3 1/16 1 2.46 5/16 4 5/8 4 3/4 5
2 1/2 7 7/8 3 9/16 1 1/8 2.97 5/16 4 5/8 5 1/2 8
3 7 1/2 15/16 4 1/4 1 3/16 3.60 3/8 4 5/8 6 9
3 1/2 8 1/2 15/16 4 13/16 1 1/4 4.10 3/8 8 5/8 7 11
4 9 15/16 5 5/16 1 5/16 4.60 7/16 8 5/8 7 1/2 12
5 10 15/16 6 7/16 1 7/16 5.69 7/16 8 3/4 8 1/2 13
6 11 1 7 9/16 1 9/16 6.75 1/2 8 3/4 9 1/2 18
8 13 1/2 1 1/8 9 11/16 1 3/4 8.75 1/2 8 3/4 11 3/4 28
10 16 1 3/16 12 1 15/16 10.92 1/2 12 7/8 14 1/4 36
12 19 1 1/4 14 3/8 2 3/16 12.92 1/2 12 7/8 17 60

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