Generally speaking, steel pipe is divided into seamlesssteel pipe and welded steel pipe . According to the application, there is many type stainless steel pipe, eg: for pipe line, for pressure vessels, for liquid conveyance and so on. About the welded steel pipe, there are: Longitudinal Submerged Arc Welded Steel Pipe (SAWL steel pipe ), Spiral Submerged Arc Welded Steel Pipe (SSAW steel pipe ), High Frequency Longitudinal Resistance Welded steel pipe (ERW steel pipe ) and square and rectangular steel pipe .
Steel pipe and tube
Bebon international have a professional sales team in steel pipe. Our advantage is seamless steel pipe for pipe line and for liquid conveyance. The main product in this type steel are API 5L ASTM A53 OR ASTM A106 GRA,GRB, X48,X52. The out Diameter is from 3” to 48”, wall thickness from 10SCH to100SCH. The length are Random length, Fixed Length, SRL, DRL.
Following are specification of seamless steel pipe for line pipe
|
Standard |
Steel grade |
Chemical composition % |
||||||||
|
C max |
Mn max |
P max |
S max |
Si |
V |
Nb |
Ti |
CEpcm max |
||
|
API 5L PSL1 |
L210 or A |
0.22 |
0.90 |
0.030 |
0.030 |
- |
- |
- |
- |
0.25 |
|
L245 or B |
0.28 |
1.20 |
0.030 |
0.030 |
- |
- |
- |
- |
0.25 |
|
|
L290 or X42 |
0.28 |
1.30 |
0.030 |
0.030 |
- |
- |
- |
- |
0.25 |
|
|
L320 pr X46 |
0.28 |
1.40 |
0.030 |
0.030 |
- |
- |
- |
- |
0.25 |
|
|
L360 or X52 |
0.28 |
1.40 |
0.030 |
0.030 |
- |
- |
- |
- |
0.25 |
|
|
L390 or X56 |
0.28 |
1.40 |
0.030 |
0.030 |
- |
- |
- |
- |
0.25 |
|
|
L415 or X60 |
0.28 |
1.40 |
0.030 |
0.030 |
- |
- |
- |
- |
0.25 |
|
API 5L seamless steel pipe Mechanical properties
Standard |
Steel grade |
Yiled strength (min) |
Tensile strength (min) |
|
API 5LPSL1 |
L210 or A |
210 |
335 |
|
L245 or B |
245 |
415 |
|
|
L290 or X42 |
290 |
415 |
|
|
L320 pr X46 |
320 |
435 |
|
|
L360 or X52 |
360 |
460 |
|
|
L390 or X56 |
390 |
490 |
|
|
L415 or X60 |
415 |
520 |
Specification of seamless line for liquid conveyance
Standard |
Grade |
Chemical composition % |
||||||||
|
C max |
Mn max |
P max |
S max |
Si max |
Cu max |
Ni max |
Mo max |
V max |
||
|
DIN |
ST35 |
0.18 |
0.35-0.65 |
0.035 |
0.035 |
0.15-0.35 |
0.25 |
0.25 |
- |
- |
|
ST45 |
0.25 |
0.50-0.80 |
0.035 |
0.035 |
0.15-0.35 |
0.25 |
0.25 |
- |
- |
|
|
ST55 |
0.33-0.41 |
0.50-0.80 |
0.035 |
0.035 |
0.15-0.35 |
0.25 |
0.25 |
- |
- |
|
|
ST52 |
0.20 |
1.50 |
0.035 |
0.035 |
0.55 |
0.25 |
0.25 |
- |
- |
|
|
ASTM A53 |
A |
0.25 |
0.95 |
0.05 |
0.045 |
- |
0.40 |
0.40 |
0.15 |
0.08 |
|
B |
0.30 |
1.20 |
0.05 |
0.045 |
- |
0.40 |
0.40 |
0.15 |
0.08 |
|
|
ASTM A106 |
A |
0.25 |
0.27-0.93 |
0.035 |
0.035 |
0.10 |
0.40 |
0.40 |
0.15 |
0.08 |
|
B |
0.30 |
0.29-1.06 |
0.035 |
0.035 |
0.10 |
0.40 |
0.40 |
0.15 |
0.08 |
|
API 5L seamless steel pipe Mechanical properties
Standard |
Steel grade |
Yiled strength (min) Mpa |
Tensile strength (min) Mpa |
Elongation% min |
|
DIN |
ST35 |
225 |
345-460 |
25 |
|
ST45 |
245 |
440-550 |
21 |
|
|
ST55 |
290 |
540-645 |
14 |
|
|
ST52 |
355 |
490-630 |
17 |
|
|
ASTM A53 |
A |
205 |
330 |
22 |
|
B |
240 |
415 |
20 |
|
|
ASTM A106 |
A |
205 |
330 |
35(longitudinal) |
|
B |
240 |
415 |
30(longitudinal) |
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