16Mo3 Material
16Mo3, designated with steel number 1.5415, is an European (DIN EN) steel grade for alloy steels. The 16Mo3 material can be furnished in different product forms in accordance with relative EN standards. Generally speaking, 16Mo3 is a Cr-Mo alloy steel. The addition of molybdenum(Mo) not only improves the resistance to pitting corrosion but also significantly enhances creep strength at elevated temperatures. The chromium(Cr) improves the resistance to high-temperature hydrogen attack and graphitization.
(1) 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.
(2) EN 10253-2: Butt welding pipe fittings – Part 2: Non-alloy and ferritic alloy steels with specific inspection requirements.
(3) EN 10222-2: Steel forgings for pressure purposes – Part 2: Ferritic and martensitic steels with specified elevated temperature properties(especially, referring to EN 1092-1 flanges.
(4) EN 10217-2: Welded steel tubes for pressure purposes – Technical delivery conditions – Part 2: Electric welded non-alloy and alloy steel tubes with specified elevated temperature properties.
(5) EN 10217-5: Welded steel tubes for pressure purposes – Technical delivery conditions – Part 5: Submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties.
(6) EN 10028-2: Flat products(especially referring to steel plates) made of steels for pressure purposes. Part 2: Non-alloy and alloy steels with specified elevated temperature properties.
(7) EN 10273: Hot rolled weldable steel bars for pressure purposes with specified elevated temperature properties.
16Mo3 ASTM Equivalent
Since relative ASTM(ASME) standards are most widely utilized in pipeline design, sometimes it is necessary to find the decent ASTM / ASME equivalent for the EN 16Mo3 steel. As a rule of thumb, their correlations are shown in below data sheet:
| 16Mo3 Material | ASTM Equivalent |
|---|---|
| Butt Welding Pipe Fittings | ASTM A234 WP1 |
| Seamless Pipes | ASTM A335 P1 |
| Bars | ASTM A217 WC1 |
| Welded Pipe / Plates | ASTM A204 Gr.A & Gr. B |
| Forgings(Flanges) | ASTM A182 F1 |