API 5L X42 Carbon Steel Pipe
API 5L GR.X42 steel pipe is widely used in the oil and gas industry, including for transporting oil, gas, liquids and gases.
Chemical composition of EN 10216-2 13CrMo4-5
| Steel grade | Steel number | C | Si | Mn | P max | Smax |
| 13CrMo4-5 | 1.7335 | 0,10 to 0,17 | ≤ 0,35 | 0,40 to 0,70 | 0,025 | 0,020 |
| Cr | Mo | Ni | Al tot | Cu |
| 0,70 to 1,15 | 0,40 to 0,60 | ≤ 0,30 | ≤ 0,040 | ≤ 0,30 |
Mechanical properties of EN 10216-2 13CrMo4-5
| Steel grade | Upper yield strength or proof strength R eH or Rp 0,2 for Wall Thickness Tmin. | Tensile Strength Rm |
Elongation A min. % a |
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| Steel name | Steel number |
T ≤ 16 | 16 < T ≤ 40 | 40 < T ≤ 60 | 60 < T ≤ 100 | l | t | |
| MPa * | MPa * | MPa * | MPa * | MPa * | ||||
| 13CrMo4-5 | 1.7335 | 290 | 290 | 280 | - | 440 to 590 | 22 | 20 |
Tolerances on inside diameter and minimum wall thickness
| Tolerances on inside diameter |
Tolerances on T min for a T min /d ratio |
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| d | d min | ≤ 0,05 | > 0,05 ≤ 0,1 |
> 0,1 |
| ± 1% or ± 2 mm whichever is the greater |
(+2%,0) or (+ 4 mm,0) whichever is the greater | + 35% 0 |
+ 28% 0 |
+ 22% a 0 |
| a For outside diameters D ≥ 355,6 mm it is permitted to exceed the upper wall thickness locally by a further 5% of the wall thickness T | ||||
Tolerances on exact lengths
Dimension in mm
| Length L | Tolerance on exact length |
| L ≤ 6000 | +10 0 |
| 6000 < L ≤ 12 000 | +15 0 |
| L > 12 000 | + by agreement 0 |







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