EN10216-2 16Mo3 seamless steel tubes are are used for high temperature service applications in oil refinery piping, steam pipeline, and power plant projects, etc.
Standard:EN 10216-2
Seamless steel tubes for pressure purposes -Technical delivery conditions
Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties
EN 10216-2 16Mo3 Seamless steel tubes for pressure purposes.
EN 10216-2 16Mo3 Seamless steel tubes Quick Details
Manufacture:Seamless process
Wall thickness(WT): 2.1mm--20 mm.
Outer diameter (OD): 21 mm--509mm
Length: 6M or specified length as required.
Ends: Plain End, Beveled End, Treaded.
Heat Treatment EN 10216-2 16Mo3 Seamless steel tubes
| Steel grade | Heat treatment a |
Austenizing | Tempering | |||
| Steel name |
Steel number |
Temperature °C | Cooling Medium |
Temperature °C | Cooling medium |
|
| 16Mo3 | 1.5415 | +N | 890 to 950 | Air | - | - |
Chemical composition of EN 10216-2 16Mo3
| Steel grade | Steel number | C | Si | Mn | P max | S max |
| 16Mo3 | 1.5415 | 0.12- 0.20 | ≤ 0.35 | 0.40- 0.70 | 0.025 | 0.020 |
| Cr | Mo | Ni | Al tot | Cu |
| ≤0.30 | 0.25- 0.35 | ≤ 0,30 | ≥ 0.020 | ≤ 0.30 |
Mechanical properties of EN 10216-2 16Mo3
| Grade |
Yield Strength min |
Tensile Strength |
|
Minimum energy average absorbed KVJ at the temperature of 0°C |
||||||||
|
T≤16 |
16<T≤40 |
40<t≤60 |
60<T≤100 |
Elongation A min% |
I |
T |
||||||
|
MPa |
MPa |
MPa |
MPa |
MPa |
I |
t |
20 |
0 |
-10 |
20 |
0 |
|
|
16Mo3(1.5415) |
280 |
270 |
260 |
- |
450- 600 |
22 |
20 |
40 |
- |
- |
27 |
- |
Dimensions tolerances of EN 10216-2
Tolerances on outside diameter and wall thicknes
| Outside Diameter D mm | Tolerances on D |
Tolerances on T for a T/D ratio | |||
| ≤ 0,025 | > 0,025 ≤ 0,050 |
> 0,050 ≤ 0,10 |
> 0,10 | ||
| D ≤ 219,1 | ± 1% or ± 0.5mm whichever is the greater |
± 12,5% or ± 0.4mm whichever is the greater | |||
| D > 219,1 | ± 20% | ± 15% | ± 12,5% | ± 10% a | |
| 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 inside diameter and wall thickness
| Tolerances on inside diameter | Tolerances on T for a T/d ratio | |||||
| d | d min | ≤ 0,03 | > 0,03 ≤ 0,06 |
> 0,06 ≤ 0,12 |
> 0,12 | |
| ± 1% or ± 2 mm whichever is the greater | (+ 2% ,0)or (+ 4 mm,0) |
whichever is the greater | ± 20% | ± 15% | ± 12,5% | ± 10% a |
| 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 outside diameter and minimum wall thickness
| Outside diameter D mm | Tolerances on D | Tolerances on T min for a T min /D ratio | |||
| ≤ 0,02 | > 0,02 ≤ 0,04 |
> 0,04 ≤ 0,09 |
> 0,09 | ||
| D ≤ 219,1 | ± 1% or ± 0.5mm whichever is the greater |
(+ 28%,0) or (+ 0.8 mm,0) whichever is the greater | |||
| D > 219,1 | + 50% 0 |
+ 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 inside diameter and minimum wall thickness
| Tolerances on inside diameter |
Tolerances on T min for a T min /d ratio |
|||
| 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 |
