Low-alloy, heat-resistant steel for pressure vessels. Chromium molybdenum steel.
High heat and corrosion resistance thanks to a higher percentage of chromium and molybdenum in the chemical composition. Good weldability and good cold and hot-rolling properties.
Standard
EN10028-2
Identification Number
1.5415
Classification
–
Type
Alloyed/Unalloyed
Rolling State
Normalised
Brief Description
Low-alloy, heat-resistant steel for pressure vessels. Chromium molybdenum steel.
High heat and corrosion resistance thanks to a higher percentage of chromium and molybdenum in the chemical composition. Good weldability and good cold and hot-rolling properties.
Applications
Pressure vessels, boiler works, pipes containing hot liquids.
Standard Coil Stock Range
| 16Mo3 | 1500 | 2000 |
|---|---|---|
| 2 | ● | |
| 3 | ● | |
| 4 | ● | ● |
| 5 | ● | ● |
| 6 | ● | ● |
| 8 | ● | |
| 10 | ● |
Chemical Composition
Regulatory standard
| Element | Value |
| C (%) | 0,12-0,20 |
| Si (%) | ≤ 0,35 |
| Mn (%) | 0,40-0,90 |
| P (%) | ≤ 0,025 |
| S (%) | ≤ 0,010 |
| AI (%) | |
| Nb (%) | |
| Ti (%) | |
| V (%) | |
| Mo (%) | 0,25-0,35 |
| Cu (%) | ≤ 0,30 |
| Element | Value |
| Cr (%) | ≤ 0,30 |
| Ni (%) | ≤ 0,30 |
| N (%) | ≤ 0,012 |
| B (%) | |
| Nb+Ti+V (%) | |
| Cr+Mo+Ni (%) | |
| Ni+Cr+Cu+Mo (%) | |
| C.E.V. (%) |
C.E.V. (%) = C+(Mn/6)+[(Cr+Mo+V)/5]+[(Ni+Cu)/15]
Mechanical Properties
According to UNI EN 10028
| Mechanical characteristics | Direction | Thicknesses | Values |
| Re (MPa) | T | ≤ 16 | ≥ 275 |
| T | > 16 ≤ 40 | ≥ 270 | |
| Rm(MPa) | T | ≤ 16 | 440-590 |
| T | > 16 ≤ 40 | 440-590 | |
| A80 (%) | T | ≥ 18 | |
| A5 (%) | T | ≥ 22 | |
| Bend Test 180° | |||
| KV 20°C (J) | T | ≥ 31 | |
| KV 0°C (J) | |||
| KV -20°C (J) | |||
| KV -40°C (J) | |||
| KV -50°C (J) |
* = Standard option
t = thickness in mm of the test piece for the bend test
L = Tensile testing carried out on longitudinal test pieces
T = Bend tests carried out on cross-cut test pieces
Tolerances
Tolerances on the dimensions and on the shape UNI EN 10051
Surface condition UNI EN 10163-2
Certifications
EN 10204-3.1 PED 97/23/EC AD2000W1
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