WELDED PIPES
Dimensions, chemical and mechanical properties:
Geometrical dimensions of welded pipes
|
Outside diameter |
Wall thickness |
||
|
(mm) |
NPS (inches) |
(mm) |
NPS (inches) |
|
From 26.8 to 1020 |
From 3/4 to 40 |
From 2.5 to 14 |
From 0.098 to 0.551 |
Chemical composition and mechanical properties of welded carbon steel pipes according:
API-5L and DIN standards
|
Standard And Steel Grade |
Chemical composition, % |
Tensile strength, MPa |
Yield strength, MPa |
Elongation, % |
||||
|
C |
Mn |
P |
S |
|||||
|
MAX |
MIN |
|||||||
|
DIN |
API |
|||||||
|
St37 |
0.19 |
0.05 |
0.05 |
350-480 |
235 |
25 |
||
|
A |
0.21 |
0.90 |
0.04 |
0.05 |
331 |
207 |
||
|
St44 |
0.23 |
0.05 |
0.05 |
430-550 |
275 |
21 |
||
|
B |
0.26 |
1.15 |
0.04 |
0.05 |
413 |
241 |
||
|
X42 |
0.28 |
1.25 |
0.04 |
0.05 |
413 |
289 |
||
|
St52 |
0.22 |
1.7 |
0.05 |
0.05 |
500-650 |
355 |
21 |
|
|
X52 |
0.28 |
1.25 |
0.04 |
0.05 |
455 |
358 |
||
|
Ste385.7tm |
0.14 |
1-1.6 |
0.035 |
0.025 |
530-680 |
385 |
19 |
|
|
X56 |
0.26 |
1.35 |
0.04 |
0.05 |
489 |
386 |
||
|
Ste445.7tm |
0.16 |
1-1.6 |
0.035 |
0.025 |
560-710 |
445 |
18 |
|
|
X65 |
0.26 |
1.4 |
0.04 |
0.05 |
530 |
448 |
||