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:
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, mmWall Thickness, mm
6; 70,5; 0,8; 1,0; 1,2; 1,5; 1,8; 2,0
80,5; 0,8; 1,0; 1,2; 1,5; 1,8; 2,0; 2,2; 2,5
90,5; 0,8; 1,0; 1,2; 1,5; 1,8; 2,0; 2,2; 2,5; 2,8
10; 120,5; 0,8; 1,0; 1,2; 1,5; 1,8; 2,0; 2,2; 2,5; 2,8; 3,0
14; 15; 16; 180,5; 0,8; 1,0; 1,2; 1,5; 1,8; 2,0; 2,2; 2,5; 2,8; 3,0; 3,5
20; 220,5; 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; 301,0; 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; 401,0; 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; 501,0; 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; 651,5; 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; 803,0; 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: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)
Comments