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.
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 |
ASTM Equivalent |
Butt Welding pipe fittings |
ASTM A234 WP1 |
Seamless pipes |
ASTM A355 P1 |
Bars |
ASTM A217 WC1 |
Welded pipes/plates |
ASTMA204 Gr.A &Gr.B |
Forgings(flanges) |
ASTM A182 F1 |
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