Outside Diameter (Nominal Size ): 6 - 80 mm
Inside Diameter: 2 - 74 mm
Wall Thickness: 0,5 - 6 mm
Tolerances:
Outside Diameter:
OD 6 - 30 mm: ± 0,08 mm
OD 32 - 40 mm: ± 0,15 mm
OD 42 - 50 mm: ± 0,20 mm
OD 55; 60 mm: ± 0,25 mm
OD 65; 70 mm: ± 0,30 mm
OD 75; 80 mm: ± 0,35 mm
Wall Thickness: ± 10%
Inside Diameter: 2 - 74 mm
Wall Thickness: 0,5 - 6 mm
Tolerances:
Outside Diameter:
OD 6 - 30 mm: ± 0,08 mm
OD 32 - 40 mm: ± 0,15 mm
OD 42 - 50 mm: ± 0,20 mm
OD 55; 60 mm: ± 0,25 mm
OD 65; 70 mm: ± 0,30 mm
OD 75; 80 mm: ± 0,35 mm
Wall Thickness: ± 10%
Notes:
- Steel grades: St 35, St 45, St 52
- Length up to 9 m.
- Test certificates according to DIN EN 10204.
| DIN 2391 Seamless Steel Tubes Sizes | |
Nominal Size, mm
| Wall Thickness, mm |
6; 7
| 0,5; 0,8; 1,0; 1,2; 1,5; 1,8; 2,0 |
8
| 0,5; 0,8; 1,0; 1,2; 1,5; 1,8; 2,0; 2,2; 2,5 |
9
| 0,5; 0,8; 1,0; 1,2; 1,5; 1,8; 2,0; 2,2; 2,5; 2,8 |
10; 12
| 0,5; 0,8; 1,0; 1,2; 1,5; 1,8; 2,0; 2,2; 2,5; 2,8; 3,0 |
14; 15; 16; 18
| 0,5; 0,8; 1,0; 1,2; 1,5; 1,8; 2,0; 2,2; 2,5; 2,8; 3,0; 3,5 |
20; 22
| 0,5; 0,8; 1,0; 1,2; 1,5; 1,8; 2,0; 2,2; 2,5; 2,8; 3,0; 3,5 |
25; 26; 28; 30
| 1,0; 1,2; 1,5; 1,8; 2,0; 2,2; 2,5; 2,8; 3,0; 3,5; 4,0; 4,5; 5,0; 5,5; 6,0 |
32; 35; 38; 40
| 1,0; 1,2; 1,5; 1,8; 2,0; 2,2; 2,5; 2,8; 3,0; 3,5; 4,0; 4,5; 5,0; 5,5; 6,0 |
42; 45; 48; 50
| 1,0; 1,2; 1,5; 1,8; 2,0; 2,2; 2,5; 2,8; 3,0; 3,5; 4,0; 4,5; 5,0; 5,5; 6,0 |
55; 60; 65
| 1,5; 1,8; 2,0; 2,2; 2,5; 2,8; 3,0; 3,5; 4,0; 4,5; 5,0; 5,5; 6,0 |
70; 75; 80
| 3,0; 3,5; 4,0; 4,5; 5,0; 5,5; 6,0 |
| Mechanical properties Of DIN 2391 Seamless Steel Tubes | |||
Steel Grade
|
Tensile Strength, N/mm2 (min)
|
Yield Strength, N/mm2 (min)
|
Elongation, % (min)
|
NBK
| |||
RSt 34-2
|
210 - 410
|
205
|
28
|
RSt 37-2
|
340 - 470
|
235
|
25
|
St 44-2
|
410 - 540
|
255
|
21
|
BK
| |||
RSt 34-2
|
460
|
-
|
6
|
RSt 37-2
|
490
|
-
|
6
|
St 44-2
|
290 - 310
|
-
|
5
|
GBK
| |||
RSt 34-2
|
300
|
-
|
28
|
RSt 37-2
|
315
|
-
|
25
|
St 44-2
|
390
|
-
|
21
|
| Chemical Composition (%, max) Of DIN 2391 Seamless Steel Tubes | |||||
Steel Grade
|
C
|
Si
|
Mn
|
S
|
P
|
RSt 34-2
|
0,15
|
0,30
|
0,60
|
0,025
|
0,025
|
RSt 37-2
|
0,17
|
0,30
|
0,70
|
0,025
|
0,025
|
St 44-2
|
0,21
|
0,30
|
1,1
|
0,025
|
0,025
|
APPLICATIONS:
1. Petrochemical industry
2. Pharmaceutical industry
3. Food industry
4. Aviation and aerospace industry
5. Architectural decoration industry
6. Gas and Oil
Source: Zhejiang Yaang Pipe Industry Co., Limited (www.yaang.com)
