16Mo3 is a EN10028-2 specified pressure vessel grade chrome molybdenum alloy steel for use in elevated working temperatures. 16Mo3 steel has excellent heat resistance and corrosion resistant characteristics. 16Mo3 steel is used as a weldable steel in the fabrication of industrial boilers and steel pressurized vessels found in the oil, gas and chemical industry.
16Mo3 equivalent ASTM material is A204 Grade B to some extent. Below is 16Mo3 steel and 16Mo3 equivalent ASTM material A204 Grade B properties:
| Property |
Chemial elements |
16Mo3 |
A204 Grade B |
| Chemical properties |
C content |
0.12 - 0.20 % |
≤0.27 % |
| Mn content |
0.40 - 0.90 % |
≤0.90 % |
| Mo content |
0.25 - 0.35 % |
0.45-0.60 |
| Cr content |
≤0.30 % |
|
| Cu content |
≤0.30 % |
|
| Ni content |
≤0.30 % |
|
| N content |
≤0.012 % |
|
| S content |
≤0.010 % |
≤0.035 % |
| Si content |
≤0.35 % |
0.15-0.40 |
| P content |
≤0.025 % |
≤0.035 % |
| Mechanical properties |
Tensile strength Rm |
410 - 590 MPa |
485-620 MPa |
| Yield strength YS, Thk≤16 |
275 MPa Min. |
275 MPa Min. |
| Elongation |
22% Min. |
17% Min. |
Through A204 Grade B is 16Mo3 equivalent ASTM material. They have much difference, which can be found through above table. So if you need 16Mo3 equivalent, please confirm it with technician and engineer carefully.
