Standard Roll Groove for DIN 2440 & DIN 2448 (ISO 4200) Carbon Steel Pipe
Standard Roll Groove for JIS G3452 Carbon Steel Pipe
Pipe OD (Column 2):
Maximum allowable tolerances from square cut ends is 0.03’’ for size up to 3 1/2’’; 0.045’’ for 4’’ thru 6’’; and 0.060’’ for size 8’’ and above.
Gasket Sealing Surface (Column 3):
The gasket sealing surface shall be free from deep scores, marks, or ridges that could prevent a positive seal.
Groove Width (Column 4):
Groove width is to be measured between vertical flanks of the groove side walls.
Groove Diameter (Column 5):
The “C” diameters are average values. The groove must be of uniform depth around the entire pipe circumference.
Minimum Wall Thickness (Column 6):
The “t” is the minimum allowable wall thickness that may be roll-grooved.
Groove Depth (Column 7):
The “d” is for reference use only. The groove dimension shall be determined by the groove diameter “C”.
Flare Diameter (Column 8):
The pipe end that may flare when the groove is rolled shall be within this limit when measured at the extreme end of the pipe.
Groove Diameter:
Groove diameters ‘G’ are only applicable to pipe size 150A or smaller. Grooves for 200A thru 300A are to be determined
by the groove circumference.
Groove Depth:
The “d” is for reference use only.
Flare Diameter:
The maximum flare diameters (f) are target values.
A
O.D.
B
C
d
t

25
3233.7
42.4+0.41
+0.50-0.68
-0.601.70
1.707.14
7.1430.23
38.99-0.38
-0.3815.88
15.881.8
1.834.5
43.340
5048.3
60.3+0.44
+0.61-0.52
-0.611.60
1.607.14
8.7445.09
57.15-0.38
-0.3815.88
15.881.8
1.849.4
62.265
8076.1
88.9+0.76
+0.89-0.76
-0.791.93
1.988.74
8.7472.26
84.94-0.46
-0.4615.88
15.882.3
2.377.7
90.6100
100108.0
114.3+1.07
+1.14-0.79
-0.792.11
2.118.74
8.74103.73
110.08-0.51
-0.5115.88
15.882.3
2.3109.7
116.2125
125133.0
139.7+1.32
+1.40-0.79
-0.791.93
2.118.74
8.74129.13
135.48-0.51
-0.5115.88
15.882.9
2.9134.9
141.7150
150159.0
168.3+1.60
+1.60-0.79
-0.792.20
2.168.74
8.74154.50
163.96-0.56
-0.5615.88
15.882.9
2.9161.0
170.7200
250219.1
273.0+1.60
+1.60-0.79
-0.792.34
2.3911.91
11.91214.40
268.28-0.64
-0.6919.05
19.052.9
3.6221.5
275.4300323.9+1.60-0.792.7711.91318.29-0.7619.054.0326.2Pipe
or
Tube
mmPipe O.D.Gasket
Seat
A
±0.76
mmGroove
Width
B
±0.76
mmGroove
Depth
d (ref)
mmMin. allow.
Wall
Thickness t
mmMax.
Flare
f
mmGroove DiameterBasic
mmTolerancesBasic
C
mmTolerance
+0.00
mm

+0.4
-0.90
-1.00
-3.125134.016.07.130.40
-3.10
-1.0+0.4
-0.9321.2542.716.07.139.10
-3.10
-1.0+0.4
-0.9401.548.616.07.145.00
-3.10
-1.0+0.4
-0.950260.516.08.756.90
-3.10
-1.0+0.4
-0.9652.576.316.08.772.20
-3.10
-1.0+0.4
-0.9803 89.116.08.784.90
-3.10
-1.0+0.4
-0.91004 114.316.08.7110.10
-3.10
-1.0+0.4
-0.91255 139.816.08.7135.50
-3.10
-1.0+0.4
-0.91506 165.216.08.7160.80
-3.125010267.419.011.9±0.8( 262.6 )0
-3.130012318.519.011.9±0.8( 312.9 )0
-3.12008216.319.011.9±0.8( 211.6 )

1 2 3 4 5 6 7 8