ASTM A179 Cold Drawn Seamless Tube
ASTM SA 179 seamless pipe is formulated according to ASTM standards and has similar grades and standards to ASTM A179/A179M.
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 |