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DIN 2391 Seamless Steel Tubes By yaang.com

DataTime:[7/29/2015]

DIN 2391 Seamless Steel Tubes

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:

  1. Steel grades: St 35, St 45, St 52
  2. Length up to 9 m.
  3. 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 StrengthN/mm2 (min)
Yield StrengthN/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 / Fax No :86-0577-56809281 / Email:sales@yaang.com
Address:Longwan District, Wenzhou, Zhejiang Province, China.

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