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SSAW (Spiral Submerged Arc Welded) steel pipes are widely used in various industries, including the transportation of liquids and gases, water supply, and structural applications. Due to their unique manufacturing process, where the steel strip is spirally wound and welded, these pipes exhibit high strength, durability, and corrosion resistance. To understand their performance and ensure their suitability for specific applications, it is essential to analyze their chemical composition and mechanical properties. Below is an overview of the typical chemical composition and mechanical characteristics of SSAW steel pipes.
Standard |
Grade |
Chemical Composition(max)% |
Mechanical Properties(min) |
|||||
C |
Si |
Mn |
P |
S |
Tensile Strength(Mpa) |
Yield Strength(Mpa) |
||
API 5CT |
h40 |
- |
- |
- |
- |
0.030 |
417 |
417 |
J55 |
- |
- |
- |
- |
0.030 |
517 |
517 |
|
K55 |
- |
- |
- |
- |
0.300 |
655 |
655 |
|
API 5L PSL1 |
A |
0.22 |
- |
0.90 |
0.030 |
0.030 |
335 |
335 |
B |
0.26 |
- |
1.20 |
0.030 |
0.030 |
415 |
415 |
|
X42 |
0.26 |
- |
1.30 |
0.030 |
0.030 |
415 |
415 |
|
X46 |
0.26 |
- |
1.40 |
0.030 |
0.030 |
435 |
435 |
|
X52 |
0.26 |
- |
1.40 |
0.030 |
0.030 |
460 |
460 |
|
X56 |
0.26 |
- |
1.40 |
0.030 |
0.030 |
490 |
490 |
|
X60 |
0.26 |
- |
1.40 |
0.030 |
0.030 |
520 |
520 |
|
X65 |
0.26 |
- |
1.45 |
0.030 |
0.030 |
535 |
535 |
|
X70 |
0.26 |
- |
1.65 |
0.030 |
0.030 |
570 |
570 |
|
API 5L PSL2 |
B |
0.22 |
0.45 |
1.20 |
0.025 |
0.015 |
415 |
415 |
X42 |
0.22 |
0.45 |
1.30 |
0.025 |
0.015 |
415 |
415 |
|
X46 |
0.22 |
0.45 |
1.40 |
0.025 |
0.015 |
435 |
435 |
|
X52 |
0.22 |
0.45 |
1.40 |
0.025 |
0.015 |
460 |
460 |
|
X56 |
0.22 |
0.45 |
1.40 |
0.025 |
0.015 |
490 |
490 |
|
X60 |
0.12 |
0.45 |
1.60 |
0.025 |
0.015 |
520 |
520 |
|
X65 |
0.12 |
0.45 |
1.60 |
0.025 |
0.015 |
535 |
535 |
|
X70 |
0.12 |
0.45 |
1.70 |
0.025 |
0.015 |
570 |
570 |
|
X80 |
0.12 |
0.45 |
1.85 |
0.025 |
0.015 |
625 |
625 |
|
ASTM A53 |
A |
0.25 |
0.10 |
0.95 |
0.050 |
0.045 |
330 |
330 |
B |
0.30 |
0.10 |
1.20 |
0.050 |
0.045 |
415 |
415 |
|
ASTM A252 |
1 |
- |
- |
- |
0.050 |
- |
345 |
345 |
2 |
- |
- |
- |
0.050 |
- |
414 |
414 |
|
3 |
- |
- |
- |
0.050 |
- |
455 |
455 |
|
EN10217-1 |
P195TR1 |
0.13 |
0.35 |
0.70 |
0.025 |
0.020 |
320 |
320 |
P195TR2 |
0.13 |
0.35 |
0.70 |
0.025 |
0.020 |
320 |
320 |
|
P235TR1 |
0.16 |
0.35 |
1.20 |
0.025 |
0.020 |
360 |
360 |
|
P235TR2 |
0.16 |
0.35 |
1.20 |
0.025 |
0.020 |
360 |
360 |
|
P265TR1 |
0.20 |
0.40 |
1.40 |
0.025 |
0.020 |
410 |
410 |
|
P265TR2 |
0.20 |
0.40 |
1.40 |
0.025 |
0.020 |
410 |
410 |
|
EN10217-2 |
P195GH |
0.13 |
0.35 |
0.70 |
0.025 |
0.020 |
320 |
320 |
P235GH |
0.16 |
0.35 |
1.20 |
0.025 |
0.020 |
360 |
360 |
|
P265GH |
0.20 |
0.40 |
1.40 |
0.025 |
0.020 |
410 |
410 |
|
EN10217-5 |
P235GH |
0.16 |
0.35 |
1.20 |
0.025 |
0.020 |
360 |
360 |
P265GH |
0.20 |
0.40 |
1.40 |
0.025 |
0.020 |
410 |
410 |
|
EN10219-1 |
S235JRH |
0.17 |
- |
1.40 |
0.040 |
0.040 |
360 |
360 |
S275JOH |
0.20 |
- |
1.50 |
0.035 |
0.035 |
410 |
410 |
|
S275J2H |
0.20 |
- |
1.50 |
0.030 |
0.030 |
410 |
410 |
|
S355JOH |
0.22 |
0.55 |
1.60 |
0.035 |
0.035 |
470 |
470 |
|
S355J2H |
0.22 |
0.55 |
1.60 |
0.030 |
0.030 |
470 |
470 |
|
S355K2H |
0.22 |
0.55 |
1.60 |
0.030 |
0.030 |
470 |
470 |