MATERIAL DATASHEET – 16Mo3
Alloyed Steel for Elevated Service Temperature
1. Product Applications
Thanks to its improved mechanical properties (specified up to 500°C) and improved creep resistance, 16Mo3 alloyed steel grade is particularly recommended for use at elevated service temperature.
This weldable steel grade is relevant for:
- Powerplant equipment
- Exhaust systems
- Hot machine parts
- Incineration plants
2. Advantages
The heat resistance is obtained by alloying with molybdenum. Reference creep resistance data available in annex C of EN10028-2 or annex B of EN10273.
- Available in sections & merchant bars
- Economical vs cutting & welding plates
3. Available Sections
- IPE (80-600)
- HE (100-600)
- L Angles (120, 150, 180, 200)
- UPN (80-300)
- Other sizes: upon agreement
Max flange thickness: 40 mm
MOQ: Upon agreement
4. Steel Designation
16Mo3 + AR in relation with EN10273 and EN10028
Delivery: EN10025-1 & 2 (except chem & mech values)
5. Mechanical Testing
- Tensile test at room temperature
- Elevated temp tests: upon agreement
6. Mechanical Properties
| Grade | Yield Strength ReH (MPa) | Tensile Strength Rm (MPa) | Elongation (%) | Impact Energy (J) |
|---|---|---|---|---|
| 16Mo3 | 275 (≤16mm) 270 (>16≤40mm) |
440 – 590 | 24 | -20°C: 40 0°C: 40 +20°C: 40 |
7. Elevated Temperature Proof Strength
| Thickness | 50°C | 100°C | 150°C | 200°C | 250°C | 300°C | 350°C | 400°C | 450°C | 500°C |
|---|---|---|---|---|---|---|---|---|---|---|
| ≤16 mm | 273 | 264 | 250 | 233 | 213 | 194 | 175 | 159 | 147 | 141 |
| 16<t≤40 mm | 268 | 259 | 245 | 228 | 209 | 190 | 172 | 156 | 145 | 139 |
8. Chemical Composition (% by weight)
| C | Si (max) | Mn | P (max) | S (max) | Al (min) | N (max) | Cr (max) | Cu (max) | Mo | Ni (max) |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.12 – 0.20 | 0.35 | 0.40 – 0.90 | 0.025 | 0.010 | 0.012 | 0.030 | 0.30 | 0.30 | 0.25 – 0.35 | 0.30 |
9. Processing & Surface
- Can be welded with all manual & automatic processes
- Surface: EN10163-3 Class C, Subclass 1