DIN Seamless Pipe
| Standard No | Steel Grade | Standard Name | Dimension Range |
|---|---|---|---|
| DIN 1630 | St37.4, St44.4, St52.4 | Seamless Circular Tubes of Non. Alloy Steels With Very High Quality Requirements | 10.2-660 mm |
| DIN 2391-1 | St30Si,Si30AL, St35, St45, St52 | Seamless Precision Steel Tubes | 4-260 mm |
| DIN 2440 | St33.2 | Steel Tubes Medium Weight Suitable for Screwing | 10.2-165.1 mm |
| DIN 2441 | St33.2 | Steel Tubes Heavy Weight for Suitable for Screwing | 10.2-165.1 mm |
| DIN 2445-1 | St 52.4 | Seamless Steel Tubes Subjected to Dynamic Loading-1 Hot Finished Tubes for Use in Fluid Power Systems, Rated for Pressures from 100 bar to 500 bar | 21.3-355.6 mm |
| DIN 2445.2 | St 37.4 | Seamless Steel Tubes Subjected to Dynamic Loading-2 Precision, Tubes for Use in Fluid Power Systems, Rated for Pressures from 100 bar to 500 bar | 4.50 mm |
| DIN 2460 | St35 | Steel Pipes for Water Pipelines | DN80-500 |
| DIN 17172 | StE210.7, StE240.7, StE290.7, StE320.7, StE360.7, StE385.7,StE415.7, StE290.7TM, StE320.7TM, StE360.7TM, StE385.7TM, StE415.7TM, StE445.7TM, StE480.7TM | Steel Pipes for Pipe Lines for the Transport of Conductible Fluids and Gases | 10.2-660 mm |
| DIN 17173 | TTSt35N, TTSt35V, 26CrMo4, 1IMnNi53,13MnNi63, l0Nil4, 12Ni19, X8Ni19 | Seamless Circular Tubes Made from Steels with Low Temperature Service | 10.2-660 mm |
| DIN 17175 | St35.8, S05.8,17Mn4,19Mn5, 15Mo3, 13CrMo910, 1OCrMo910, 14MoV63, X20CrMoV12l | Seamless Circular Tubes Made From Steels with Elevated Temperatures | 10.2-660 mm |
| DIN 17176 | 13CrMo44, 10CrMo910, I2CrMo9I012CrMol210, 12CrMoI95, XlZCrMo91, 20CrMoV135,X20CrMoVI21 | Seamless Circular Steel Tubes for Hydrogen Service at Elevated Temperatures and Pressures. | 10.2-660 mm |
| DIN 17179 | StE225,WStE255,TStE255,EStE255, StE285,WStE285,TStE285, EStE285, StE355,WStE355,TStE355,EStE355, StE420, WStE420, TStE420,EStE420, StE460, WStE460, TStE460,EStE460 | Seamless Circular Fine Grain Steel Tubes Subject To Special Requirements | 10.2-660 mm |
| DIN 28180 | St 37.0, St 35.8, TTst 35N, 15Mo3, 13CrMo4 4 | Seamless Steel Tubes for Tubular Heat Exchangers | 16-38 mm |
| Outside Diameter "D" (mm) | Wall Thickness "S" (mm) | Outside Diameter "D" (mm) | Wall Thickness. "S" (mm) | Outside Diameter "D" (mm) | Wall Thickness "S" (mm) | ||
|---|---|---|---|---|---|---|---|
| Calculation of Unit Weight:: W = 0.02466 * S * (D-S) | |||||||
| 4 | 0.5-1.0 | 22 | 1.0-3.0 | 80 | 10.0 | ||
| 5 | 0.75-1.0 | 25 | 1.6-7.0 | 88.9 | 4.05-22.2 | ||
| 6 | 0.75-2.25 | 26.9 | 2.0-7.1 | 101.6 | 5.0-20.0 | ||
| 8 | 1.0-2.5 | 28 | 1.5-5.0 | 114.3 | 4.5-30.0 | ||
| 10 | 1.0-3.0 | 30 | 1.6-8.0 | 139.7 | 5.4-44.5 | ||
| 10.2 | 2.0-2.65 | 33.7 | 2.6-10.0 | 152.4 | 11.0-48.6 | ||
| 12 | 1.0-3.5 | 35 | 2.0-6.0 | 165.1 | 4.85-5.4 | ||
| 13.5 | 2.35-2.9 | 38 | 2.0-10.0 | 168.3 | 12.0-33.1 | ||
| 14 | 1.0-4.0 | 42 | 2.0-4.0 | 177.8 | 14.2-44.6 | ||
| 15 | 1.0-3.0 | 42.4 | 2.6-11.0 | 193.7 | 17.5-48.6 | ||
| 16 | 1.0-4.5 | 49.3 | 2.6-12.5 | 219.1 | 14.2-69.8 | ||
| 17.2 | 2.65-2.9 | 50 | 4.0-13.0 | 273.0 | 20.0-68.4 | ||
| 18 | 1.0-3.0 | 60.3 | 3.2-16.0 | 323.9 | 28.0-65.3 | ||
| 20 | 1.5-5.5 | 65 | 8.0 | 355.6 | 30.0-69.8 | ||
| 21.3 | 2.0-5.6 | 76.1 | 3.6-20.0 | ||||
| Standard | Tolerance | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Out side Diameter | Wall Thickness | Length | ||||||||
| mm | ||||||||||
| DIN 1630 | See Table 1 | See Table 2 | See Table 3 | |||||||
| DIN 2391 | See Table 4 | 10% | See Table 5 | |||||||
| DIN 2440 | See Table 6 | -12.5%, + A | ±1m | |||||||
| DIN 2441 | See Table 2 | -12.5%, + A | ±1m | |||||||
| DIN 17172 | SeeTable 7 | ≤130 | 10% | Fixed Length | ±500 | |||||
| >130 | 12.5% | |||||||||
| DIN 17173 | See Table 1 | See Table 2 | See Table 3 | |||||||
| DIN 17175 | See Table 1 | See Table 2 | See Table 3 | |||||||
| DIN 17176 | See Table 8 | See Table 2 | See Table 3 | |||||||
| DIN 17179 | See Table 1 | See Table 2 | See Table 3 | |||||||
| DIN 28180 | Outside Diameter | Class 1 | Class 2 | Class 3 | See Table 9 | ≤5000 | -0,+5 | |||
| 16-30 | ±0.08 | Not Applicable | ±0.50 | >5000 -10000 | -0,+10 | |||||
| 38 | ±0.15 | >10000 | By agreement | |||||||
| A: The upper Limit is fixed by the permissible weight deviation. | ||||||||||
Table 1: Permissible Deviation in Outside Diameter in DIN 1630, 17173, 17175, 17179
| Outside Diameter - da mm | Pertilisable Deviation in Diameter | |
|---|---|---|
| Tube Barrel and Tube Ends | At Tube ends, Subject to Particular agreement | |
| <100 | ±1% da; (values up to ±0.5mm are permitted) | ±0.4mm |
| 100≤da<200 | ±1% da | ±0.5% da. |
| ≥200 | ±1% da | ±0.6% da |
Table 2: Permissible Deviation in Wall Thickness in DIN 1630, 17173, 17175, 17176, 17179
| Permissible Deviation in Wall Thickness for Outside Diameter, da. and Wall Thicknesses, s | ||||||||
|---|---|---|---|---|---|---|---|---|
| da ≤130mm | 130mm<da≤320mm | 320mm<da≤660mm | ||||||
| s ≤2 | 2<s≤4 | s>4 | s≤0.05da | 0.05da<s ≤.11da | s>0.11da. | s≤0.05da | 0.05da<s ≤0.09da | s>0.09da |
| +5% -10% | +12.5 %10 | ±9% | +17.5% -12.5% | ±12.5% | ±10 | +20% -15% | +15% -12.5% | +12.5% -10% |
Table 3: Types of Length and Permissible Deviation in Length in DIN 1630, 17173, 17175, 17176, 17179
| Type of Length | Premissuble Deviations in Length,mm | |
|---|---|---|
| Manfacturing Length | By agreement | |
| Specified Length | ±500 | |
| Exact Length | ≤6m | -0,+10 |
| >6-12mm | -0,+15 | |
| >12m | By agreement | |
Table 4: Permissible Deviation in Outside Diameter in DIN 2391
| Outside Diameter | Permissible Deviation | Outside Diameter | Permissible Deviation | Outside Diameter | Permissible Deviation | ||
|---|---|---|---|---|---|---|---|
| 4-10mm | ±0.08mm | 75-81mm | ±0.35mm | 170-180mm | ±0.90mm | ||
| 12-30mm | ±0.1mm | 85-90mm | ±0.40mm | 190-200mm | ±1.0mm | ||
| 32-40mm | ±0.15mm | 95-100mm | ±0.45mm | 220-240mm | ±1.20mm | ||
| 42-50mm | ±0.20mm | 110-12mm | ±0.50mm | 260mm | ±1.30mm | ||
| 55-60mm | ±0.25mm | 130-146m | ±0.70mm | ||||
| 65-70mm | ±0.30mm | 150-160m | ±0.80mm |
Table 5: Types of Length and Permissible Deviation in Length in 2391
| Type of Length | Premissuble Deviations in Length,mm | ||
|---|---|---|---|
| Manfacturing Length | By agreement | ||
| Fixed Length | <2000 | ±500 | |
| ≥2000 | 10% | ||
| Exact Length | <500mm | -0,+2 | |
| >500-2000mm | -0,+3 | ||
| >2000-5000 | -0,+5 | ||
| >5000-7000 | -0,+10 | ||
| >7000 | By agreement | ||
Table 6: Permissible Deviation in Outside Diameter in DIN 2440, 2441
| Outside Diameter (mm) | Max (mm) | Min (mm) | Outside Diameter (mm) | Max (mm) | Min (mm) | |
|---|---|---|---|---|---|---|
| 10.2 | 10.6 | 9.8 | 48.3 | 48.8 | 47.9 | |
| 13.5 | 14.0 | 13.2 | 60.3 | 60.8 | 59.7 | |
| 17.2 | 17.5 | 16.2 | 76.1 | 70.6 | 75.3 | |
| 21.3 | 21.8 | 21.0 | 88.9 | 89.6 | 88.0 | |
| 26.9 | 27.3 | 26.5 | 114.3 | 115.0 | 113.1 | |
| 33.7 | 34.2 | 33.3 | 139.7 | 140.0 | 138.5 | |
| 42.4 | 42.9 | 42.0 | 165.1 | 166.5 | 163.9 |
Table 7: Permissible Deviation in Outside Diameter in DIN 17172
| Nominal Outside Diameter-"D" (mm) | Max.Permissible Diameter Variation | |
|---|---|---|
| Pipe Body | Pipe End | |
| D<200 | ±1%(Values up to ±0.5mm are permissible in all case) | ±1%(Values up to ±0.5mml. are permissible in A case) |
| 200≤ D<500 | ±1% | ±0.7% |
| 500≤D | ±1% | 1.6mm |
Table 8: Permissible Deviation in Outside Diameter in DIN 17176
| Manufacturing Process | Limit Deviation of Outside Diameter | |
|---|---|---|
| Cold Forming | ±0.75% | |
| Hot Forming | ≤100mm | ±0.75% |
| >100-320mm | ±0.9% | |
| >320mm | ±1.0% | |
Table 9: Permissible Deviation in Wall Thickness in DIN 28180
| Tube Outside Diameter | Permisible Deviations In Wall Thickness for Thicknesses | |
|---|---|---|
| Up to 2 | Exceeding 2 | |
| Tolerance of Classes I and 2 | ±0.20 | ±10% of Wall Thickness |
| Tolerance Class 3 | ±0.20 | -10%, +15% of Wall Thickness |