Certification:GB/T 19001-2008 , ISO 9001:2008 , TS16949
EN10297-1 E235 , E275 , E315 , E355b , E470 ,C15 C22 ESeamless Circular Steel Tubes , Structural Steel Pipe
Standard:EN10297-1 Seamless circular steel tubes for mechanical and general engineering purposes
- Technical delivery conditions Non-alloy and alloy steel tubes
Application: for seamless circular tubes made of non-alloy and alloy steels for mechanical and gneral engineering purposes.
Size range: O.D.: 6-168mm W.T.: 1-30mm L:max12000mm
Material: Fine Grain Steel
E235, E275, E315, E355, E470
C15, C22, 38Mn6, 41Cr4,
25CrMo4, 30CrMo4, 34CrMo4, 42CrMo4
Delivery condition:
Normalizin rolling process or normalized by heat treatment in a furnance.
Manufacture:
The tubes are manufactured by Seamless Cold Drawn or Seamless Cold Rolling.
|
Steel
Grade
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Mo
|
Ni
|
Other elements
|
|
|
Steel
Name
|
Steel
Number
|
min
|
max
|
min
|
max
|
min
|
max
|
max
|
max
|
min
|
max
|
min
|
max
|
min
|
max
|
|
|
E235
|
1.0308
|
|
0.17
|
-
|
0.35
|
-
|
1.20
|
0.030
|
0.035
|
|
|
|
|
|
|
|
|
E275
|
1.0225
|
|
0.21
|
-
|
0.35
|
-
|
1.40
|
0.030
|
0.035
|
|
|
|
|
|
|
|
|
E315
|
1.0236
|
|
0.21
|
-
|
0.30
|
-
|
1.50
|
0.030
|
0.035
|
|
|
|
|
|
|
|
|
E355 b
|
1.0580
|
|
0.22
|
-
|
0.55
|
-
|
1.60
|
0.030
|
0.035
|
|
|
|
|
|
|
|
|
E470
|
1.0536
|
0.16
|
0.22
|
0.10
|
0.50
|
1.30
|
1.70
|
0.030
|
0.035
|
|
|
|
|
|
|
Al min 0.010,
N max. 0.020,
Nb Max.0.07,V 0.08/0.15
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
C22E
|
1.1151
|
0.17
|
0.24
|
-
|
0.40
|
0.40
|
0.70
|
0.035
|
0.035
|
|
|
|
|
|
|
|
