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Credibility ,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%
Notes:
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: Yaang Pipe Industry Co., Limited (www.yaang.com)
Tel No:+86-18267732328 / Email:[email protected]
Address:Longwan District, Wenzhou, Zhejiang Province, China.
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Yaang Pipe Industry Co., Ltd. is an international supplier of piping solutions for flange, butt welding fittings, socket welding fittings and threaded fittings. Our products are widely used in different industrial fields, including oil and gas, chemical industry, petrochemical industry, power plant, pulp and paper industry, environmental and water conservancy engineering, engineering projects, etc.