DIN 2605-2617 Butt-Welding Fitting
DIN 2605-2617 Butt-Welding Fitting
DIN 2605 is a German standard that specifies the design and dimensions of seamless and welded steel elbows and bends. These fittings are intended to be butt-welded to pipes and are designed to withstand the same internal pressure as the pipes they are connected to.
DIN 2617 is a German standard that specifies the design and dimensions of steel pipe caps. These caps are intended to be butt-welded to the ends of pipes to seal them off.
Type of DIN 2605-2617 Butt-Welding Fitting
DIN2605 Elbow
DIN 2617 Cap
DIN 2605-2617 Butt-Welding Fitting Dimension Chart
45-Degree Elbow Dimensions Chart (in lbs)
NPS O.D.
D90 deg LR Center-to-End
A45 deg Long Radius Center-to-End B 90 deg 3D Center-to-End A 45 deg 3D Center-to-End B
1/2 21.3 38 16 – –
3/4 26.7 38 19 57 24
1 33.4 38 22 76 31
1¼ 42.2 48 25 95 39
1½ 48.3 57 29 114 47
2 60.3 76 35 152 63
2½ 73 95 44 190 79
3 88.9 114 51 229 95
3½ 101.6 133 57 267 111
4 114.3 152 64 305 127
5 141.3 190 79 381 157
6 168.3 229 95 457 189
8 219.1 305 127 610 252
10 273 381 159 762 316
12 323.8 457 190 914 378
14 355.6 533 222 1067 441
16 406.4 610 254 1219 505
18 457 686 286 1372 568
20 508 762 318 1524 632
22 559 838 343 1676 694
24 610 914 381 1829 757
26 660 991 406 1981 821
28 711 1067 438 2134 883
30 762 1143 470 2286 964
32 813 1219 502 2438 1010
34 864 1295 533 2591 1073
36 914 1372 565 2743 1135
38 965 1448 600 2896 1200
40 1016 1524 632 3048 1264
42 1067 1600 660 3200 1326
44 1118 1676 695 3353 1389
46 1168 1753 727 3505 1453
48 1219 1829 759 3658 1516
90 Degree Elbow Dimensions Chart (in lbs)
Inch. ND millimeter Center to center Radius Center to end Back to face
D O A B K
1/2 15 21,34 76,20 38,10 15,87 47,62
3/4 20 26,67 57,15 28,57 11,11 42,86
1 25 33,40 76,20 38,10 22,22 55,56
1 1/4 32 42,16 95,25 47,60 25,40 69,85
1 1/2 40 48,26 114,30 57,15 28,57 82,55
2 50 60,32 152,40 76,20 34,92 106,40
2 1/2 65 73,02 190,50 95,25 44,45 131,80
3 80 88,90 228,60 114,30 50,80 158,75
3 1/2 90 101,60 266,70 133,35 57,15 184,15
4 100 114,30 304,80 152,40 63,50 209,55
5 125 141,30 381,00 190,50 79,38 261,90
6 150 168,27 457,20 228,60 95,25 312,70
8 200 219,07 609,60 304,80 127,00 414,30
10 250 273,05 762,00 381,00 158,75 517,50
12 300 323,85 914,40 457,20 190,50 619,10
14 350 355,60 1066,80 533,40 222,25 711,20
16 400 406,40 1219,20 609,60 254,00 812,80
18 450 457,20 1371,60 685,80 285,74 914,40
20 500 508,00 1524,00 762,00 317,50 1016,00
22 550 558,80 1676,40 838,20 342,90 1117,60
24 600 609,60 1828,80 914,40 381,00 1219,20
28 700 711,20 2133,60 1066,80 441,90 1422,40
180 Degree Elbow Dimensions Chart (in lbs)
Normal Pipe Size Outside Daimeter
DASME 180 degree Long Rad ASME 180 degree Short Rad
Center to Center O Back to Face K Center to Center O Back to Face K
1/2 21.3 76 48 … …
3/4 26.7 76 51 … …
1 33.4 76 56 51 41
1.1/4 42.2 95 70 64 52
1.1/2 48.3 114 83 76 62
2 60.3 152 106 102 81
2.1/2 73 190 132 127 100
3 88.9 229 159 152 121
3.1/2 101.6 267 184 178 140
4 114.3 305 210 203 159
5 141.3 381 262 254 197
6 168.3 457 313 305 237
8 219.1 610 414 406 313
10 273 762 518 508 391
12 323.8 914 619 610 467
14 355.6 1067 711 711 533
16 406.4 1219 813 813 610
18 457 1372 914 914 686
20 508 1524 1016 1016 762
22 559 1676 1118 1118 838
24 610 1829 1219 1219 914
Normal Pipe Size Outside Daimeter D 180 degree Long Rad 180 degree Short Rad
Center to Center O Back to Face K Center to Center O Back to Face K
Straight / Equal Tee Dimensions Chart (in lbs)
NOMINAL PIPE SIZE OUTSIDE DIAMETER CENTER TO END LENGTH
Inch. OD C M
1/2 21.3 25 25
3/4 26.7 29 29
1 33.4 38 38
1 1/4 42.2 48 48
1 1/2 48.3 57 57
2 60.3 64 64
2 1/2 73 76 76
3 88.9 86 86
3 1/2 101.6 95 95
4 114.3 105 105
5 141.3 124 124
6 168.3 143 143
8 219.1 178 178
10 273.1 216 216
12 323.9 254 254
14 355.6 279 279
16 406.4 305 305
18 457.2 343 343
20 508 381 381
22 559 419 419
24 610 432 432
26 660 495 495
28 711 521 521
30 762 559 559
32 813 597 597
34 864 635 635
36 914 673 673
38 965 711 711
40 1016 749 749
42 1067 762 711
44 1118 813 762
46 1168 851 800
48 1219 889 838
Reducing Tee Dimensions Chart (in lbs)
NOMINAL PIPE SIZE OUTSIDE DIAMETER CENTER TO END
Inch D P C M
1/2 x 3/8 21.3 17.1 25 25
1/2 x 1/4 21.3 13.7 25 25
3/4 x 1/2 26.7 21.3 29 29
3/4 x 3/8 26.7 17.1 29 29
1 x 3/4 33.4 26.7 38 38
1 x 1/2 33.4 21.3 38 38
1 1/4 x 1 42.2 33.4 48 48
1 1/4 x 3/4 42.2 26.7 48 48
1 1/4 x 1/2 42.2 21.3 48 48
1 1/2 x 1 1/2 48.3 42.2 57 57
1 1/2 x 1 48.3 33.4 57 57
1 1/2 x 3/4 48.3 26.7 57 57
1 1/2 x 1/2 48.3 21.3 57 57
2 x 1 1/2 60.3 48.2 64 60
2 x 1 1/4 60.3 42.2 64 57
2 x 1 60.3 33.4 64 51
2 x 3/4 60.3 26.7 64 44
2 1/2 x 2 73 60.3 76 70
2 1/2 x 1 1/2 73 48.3 76 67
2 1/2 x 1 1/4 73 42.2 76 64
2 1/2 x 1 73 33.4 76 57
3 x 2 1/2 88.9 73 86 83
3 x 2 88.9 60.3 86 76
3 x 1 1/2 88.9 48.3 86 73
3 x 1 1/4 88.9 42.2 86 70
3 1/2 x 3 101.6 88.9 95 92
3 1/2 x 21/2 101.6 73 95 89
3 1/2 x 2 101.6 60.3 95 83
3 1/2 x 1 1/2 101.6 48.3 95 79
4 x 3 1/2 114.3 101.6 105 102
4 x 3 114.3 88.9 105 98
4 x 2 1/2 114.3 73 105 95
4 x 2 114.3 60.3 105 89
4 x 1 1/2 114.3 48.3 105 86
5 x 4 141.3 114.3 124 117
5 x 3 1/2 141.3 101.6 124 114
5 x 3 141.3 88.9 124 111
5 x 2 1/2 141.3 73 124 108
5 x 2 141.3 60.3 124 105
6 x 5 168.3 141.3 143 137
6 x 4 168.3 114.3 143 130
6 x 3 1/2 168.3 101.6 143 127
6 x 3 168.3 88.9 143 124
6 x 2 1/2 168.3 73 143 121
8 x 6 219.1 168.3 178 168
8 x 5 219.1 141.3 178 162
8 x 4 219.1 114.3 178 156
8 x 3 1/2 219.1 101.6 178 152
10 x 8 273.1 219.1 216 203
10 x 6 273.1 168.1 216 194
10 x 5 273.1 141.3 216 191
10 x 4 273.1 114.3 216 184
12 x 10 323.9 273.1 254 241
12 x 8 323.9 219.1 254 229
12 x 6 323.9 168.3 254 219
12 x 5 323.9 141.3 254 216
14 x 12 355.6 323.9 279 270
14 x 10 355.6 273.1 279 257
14 x 8 355.6 219.1 279 248
14 x 6 355.6 168.3 279 238
16 x 14 406.4 355.6 305 305
16 x 12 406.4 323.9 305 295
16 x 10 406.4 273.1 305 283
16 x 8 406.4 219.1 305 273
16 x 6 406.4 168.3 305 264
18 x 16 457 406.4 343 330
18 x 14 457 355.6 343 330
18 x 12 457 323.9 343 321
18 x 10 457 273.1 343 308
18 x 8 457 219.1 343 298
20 x 18 508 457 381 368
20 x 16 508 406.4 381 356
20 x 14 508 355.6 381 356
20 x 12 508 323.9 381 346
20 x 10 508 273.1 381 333
20 x 8 508 219.1 381 324
22 x 20 559 508 419 406
22 x 18 559 457 419 394
22 x 16 559 406.4 419 381
22 x 14 559 355.6 419 381
22 x 12 559 323.9 419 371
24 x 10 559 273.1 419 359
24 x 22 610 559 432 432
24 x 20 610 508 432 432
24 x 18 610 457 432 419
24 x 16 610 406.4 432 406
24 x 14 610 355.6 432 406
24 x 12 610 323.9 432 397
24 x 10 610 273.1 432 384
Concentric and Eccentric Reducer Dimensions Chart (in lbs)
NOMINAL PIPE SIZE OUTSIDE DIAMETER END TO END
Inch D P H
3/4 x 1/2 26.7 21.3 38
3/4 x 3/8 26.7 17.1 38
1 x 3/4 33.4 26.7 51
1 x 1/2 33.4 21.3 51
1 1/4 x 1 42.2 33.4 51
1 1/4 x 3/4 42.2 26.7 51
1 1/4 x 1/2 42.2 21.3 51
1 1/2 x 1 1/2 48.3 42.2 64
1 1/2 x 1 48.3 33.4 64
1 1/2 x 3/4 48.3 26.7 64
1 1/2 x 1/2 48.3 21.3 64
2 x 1 1/2 60.3 48.2 76
2 x 1 1/4 60.3 42.2 76
2 x 1 60.3 33.4 76
2 x 3/4 60.3 26.7 76
2 1/2 x 2 73 60.3 89
2 1/2 x 1 1/2 73 48.3 89
2 1/2 x 1 1/4 73 42.2 89
2 1/2 x 1 73 33.4 89
3 x 2 1/2 88.9 73 89
3 x 2 88.9 60.3 89
3 x 1 1/2 88.9 48.3 89
3 x 1 1/4 88.9 42.2 89
3 1/2 x 3 101.6 88.9 102
3 1/2 x 21/2 101.6 73 102
3 1/2 x 2 101.6 60.3 102
3 1/2 x 1 1/2 101.6 48.3 102
3 1/2 x 1 1/4 101.6 42.2 102
4 x 3 1/2 114.3 101.6 102
4 x 3 114.3 88.9 102
4 x 2 1/2 114.3 73 102
4 x 2 114.3 60.3 102
4 x 1 1/2 114.3 48.3 102
5 x 4 141.3 114.3 127
5 x 3 1/2 141.3 101.6 127
5 x 3 141.3 88.9 127
5 x 2 1/2 141.3 73 127
5 x 2 141.3 60.3 127
6 x 5 168.3 141.3 140
6 x 4 168.3 114.3 140
6 x 3 1/2 168.3 101.6 140
6 x 3 168.3 88.9 140
6 x 2 1/2 168.3 73 140
8 x 6 219.1 168.3 152
8 x 5 219.1 141.3 152
8 x 4 219.1 114.3 152
8 x 3 1/2 219.1 101.6 152
10 x 8 273.1 219.1 178
10 x 6 273.1 168.1 178
10 x 5 273.1 141.3 178
10 x 4 273.1 114.3 178
12 x 10 323.9 273.1 203
12 x 8 323.9 219.1 203
12 x 6 323.9 168.3 203
12 x 5 323.9 141.3 203
14 x 12 355.6 323.9 330
14 x 10 355.6 273.1 330
14 x 8 355.6 219.1 330
14 x 6 355.6 168.3 330
16 x 14 406.4 355.6 356
16 x 12 406.4 323.9 356
16 x 10 406.4 273.1 356
16 x 8 406.4 219.1 356
16 x 6 406.4 168.3 356
18 x 16 457 406.4 381
18 x 14 457 355.6 381
18 x 12 457 323.9 381
18 x 10 457 273.1 381
18 x 8 457 219.1 381
20 x 18 508 457 508
20 x 16 508 406.4 508
20 x 14 508 355.6 508
20 x 12 508 323.9 508
20 x 10 508 273.1 508
20 x 8 508 219.1 508
22 x 20 559 508 508
22 x 18 559 457 508
22 x 16 559 406.4 508
22 x 14 559 355.6 508
22 x 12 559 323.9 508
24 x 10 559 273.1 508
24 x 22 610 559 508
24 x 20 610 508 508
24 x 18 610 457 508
24 x 16 610 406.4 508
24 x 14 610 355.6 508
24 x 12 610 323.9 508
24 x 10 610 273.1 508
End Cap Dimension Chart (in lbs)
Inch. MM Height
D E
1/2 15 21,34 25,40
3/4 20 26,67 31,75
25 33,40 38,10
1 1/4 32 42,16 38,10
1 1/2 40 48,26 38,10
2 50 60,32 38,10
2 1/2 65 73,02 38,10
3 80 88,90 50,80
3 1/2 90 101,60 63,50
4 100 114,30 63,50
5 125 141,30 76,20
6 150 168,27 88,90
8 200 219,07 101,60
10 250 273,05 127,00
12 300 323,85 152,40
14 350 355,60 165,10
16 400 406,40 177,80
18 450 457,20 203,20
20 500 508,00 228,60
22 550 558,80 254,00
24 600 609,60 266,70
28 700 711,20 266,70
Stub End Dimensions Chart (in lbs)
NOMINAL PIPE SIZE LAP DIAMETER OUTSIDE DIAMETER LONG PATTERN LENGTH SHORT PATTERN LENGTH RADIUS
Inch. A OD Min OD Max L L R
1/2 35 22.8 20.5 76 51 3
3/4 43 28.1 25.9 76 51 3
1 51 35 32.6 102 51 3
1 1/4 64 43.6 41.4 102 51 5
1 1/2 73 49.9 47.5 102 51 6
2 92 62.4 59.5 152 64 8
2 1/2 105 75.3 72.2 152 64 8
3 127 91.3 88.1 152 64 10
3 1/2 140 104 100.8 152 76 10
4 157 116.7 113.5 152 76 11
5 186 144.3 140.5 203 76 11
6 216 171.3 167.5 203 89 13
8 270 222.1 218.3 203 102 13
10 324 277.2 272.3 254 127 13
12 381 328 323.1 254 152 13
14 413 359.9 354.8 305 152 13
16 470 411 405.6 305 152 13
18 533 462 456 305 152 13
20 584 514 507 305 152 13
22 641 565 558 305 152 13
24 692 616 609 305 152 13
Material
- DIN 2605 – This standard is for butt-welded pipe fittings, typically used for connecting and joining pipes of different diameters and materials. It covers a range of pipe fittings such as elbows, tees, reducers, and caps. The material used is often:
- Carbon steel: Materials such as St 37.0, St 44.0, and St 52.0.
- Alloy steels: For higher pressure and temperature applications, grades like 15Mo3 and 13CrMo4-5 are commonly used.
- Stainless steel: Grades like 1.4401 (AISI 316) and 1.4301 (AISI 304) are also utilized for corrosion resistance.
- DIN 2617 – This standard is for pipe fittings made of forged steel. It applies to fittings such as elbows, tees, and reducers. The materials for these fittings include:
- Carbon steel: Common grades are St 35.8, St 45.8, and St 52.0.
- Alloy steels: Materials like 1.5415 (P91) and 16Mo3 are often used for high-temperature applications.
Pressure Classes
DIN 2605:
- PN 6: Suitable for low-pressure applications (6 bar).
- PN 10: Suitable for moderate-pressure applications (10 bar).
- PN 16: Suitable for higher pressure applications (16 bar).
- PN 25: Suitable for higher pressure applications (25 bar).
DIN 2617:
- PN 16: Suitable for moderate pressure systems.
- PN 25: Suitable for systems requiring medium-high pressure resistance.
- PN 40: Suitable for higher pressure applications.
- PN 63: Suitable for high-pressure systems (up to 63 bar).
Tolerance
DIN 2605 (Elbow Fittings)
DIN 2605 specifies the dimensional tolerances for elbow fittings. These include:
Outer Diameter (OD):
- The outer diameter of elbows typically follows the same tolerances as the corresponding pipe.
- For pipes up to DN 100 (nominal diameter), the tolerance is generally ±1.0 mm.
- For larger pipes, tolerances might increase, typically ±2.0 mm or more, depending on the size.
Wall Thickness:
- The wall thickness of elbow fittings is typically subject to a tolerance of ±10% of the nominal thickness.
Length (Center to Center of Curvature):
- The length tolerance of elbows typically varies based on the size but is usually within ±5 mm for most standard sizes.
Angle:
- Elbows are usually manufactured to specified angles, such as 90°, 45°, or 180°. The tolerance on the angle is usually ±1°.
Radius:
- The radius tolerance for elbows is typically ±1.5% to ±2.0% of the nominal radius.
DIN 2617 (Pipe Fittings)
DIN 2617 covers a broader range of pipe fittings like tees, reducers, and couplings. The tolerances here are similar but depend on the specific type of fitting.
Outer Diameter (OD):
- Similar to DIN 2605, the outer diameter of fittings follows the tolerances for the associated pipe. For pipes up to DN 100, this is generally ±1.0 mm.
- For larger sizes, the tolerance increases to ±2.0 mm.
Wall Thickness:
- The tolerance on the wall thickness for fittings in DIN 2617 is typically ±10% of the nominal thickness.
Length (Overall Length):
- For most fittings (like tees, reducers), the tolerance on overall length is around ±5 mm, though this may vary based on specific fitting types.
Angle and Radius:
- For items like elbows in DIN 2617, the tolerance on angles and radii is similar to that in DIN 2605 (±1° for angles and ±1.5% to ±2.0% for radii).
Threaded Fittings:
- If the fitting is threaded, DIN 2617 will specify tolerances for the thread size, which would follow typical ISO thread standards (e.g., ISO 228-1 for pipe threads), with tolerances for pitch diameter and tolerance classes.
General Tolerances (Pipe Fittings)
- Length: ±5 mm (for standard fittings).
- Diameter: ±1.0 mm for smaller sizes (up to DN 100), ±2.0 mm for larger sizes.
- Thickness: ±10% for wall thickness.
- Angle: ±1° (for elbows).
Application
- Oil and Gas Industry
- Petrochemical and Chemical Industry
- Power Generation
- Shipbuilding and Marine Applications
- Food and Beverage Industry
- Pharmaceuticals
- Mining and Metallurgy
Benefit
- Standardized Quality: Ensures high-quality and reliable fittings, adhering to stringent European standards.
- Wide Application: Suitable for use in various industries, including oil, gas, and chemical processing.
- Enhanced Durability: Designed to withstand high-pressure and temperature conditions.
- Compatibility: Compatible with different piping systems, promoting easy installation and system integration.
- Safety: Conforms to international safety and pressure standards, reducing the risk of failure.