Ξ

News

Credibility ,
the lifeblood of enterprise!
Your Location: Home > News
News - Yaang

DIN 2391 Seamless Steel Tubes By yaang.com

DataTime:[2015-7-29]

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 / Email:[email protected]
Address:Longwan District, Wenzhou, Zhejiang Province, China.

Copyright Notice © www.yaang.com Yaang Pipe Industry Co., Limited All rights reserved.
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.