16Mo3 equivalent grades: ASTM, EN, JIS, GB, DIN
16Mo3 is molybdenum-alloyed steel for pressure purposes at elevated temperature specified in EN 10028-2. Below, the grades that can replace it — 5 standard systems in all — with the deciding limit named for each one rather than left to be looked up. The full 16Mo3 data sheet carries the composition and mechanical tables.
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Where a drawing says 16Mo3, 16Mo satisfies it as written, with no concession needed. A204 Gr. A, A204 Gr. B, A335 P1 and 3 more differ by one requirement, which is a line on the order rather than a redesign. Functionally interchangeable, P265GH, 13CrMo4-5, P355GH serve a different route to the same duty — check the design, not the analysis. The table holds 1 in GB/T (China), 4 in ASTM / ASME, 1 in GOST (Russia/CIS), 1 in JIS (Japan), 3 in EN (European).
Cross-reference table
| Grade | System | Match | Why / differences |
|---|---|---|---|
| 16Mo | GB/T (China) | Identical | GB/T 713 16Mo (formerly 16MnMoR-type usage); GB adopted the EN name for Mo pressure plate. |
| A204 Gr. A | ASTM / ASME | Near | ASTM/ASME A204 Grade A (SA-204-A): C ≤ 0.18, Mo 0.45–0.60, yield 255 MPa, Rm 450–585 MPa. Higher Mo than 16Mo3; Grade B (yield 275) is closer on strength. |
| A204 Gr. B | ASTM / ASME | Near | Yield 275 MPa, Rm 485–620 MPa, Mo 0.45–0.60. |
| A335 P1 | ASTM / ASME | Near | Seamless pipe: C 0.10–0.20, Mo 0.44–0.65, yield 205 MPa — the ASME C-½Mo pipe grade corresponding to 16Mo3 tube (EN 10216-2). |
| A182 F1 | ASTM / ASME | Near | C-½Mo forging grade (flanges, fittings). |
| 15KhM / 16M | GOST (Russia/CIS) | Near | GOST 20072 / 5520 grade 16M (Mo 0.25–0.35) is close; 15KhM adds Cr. |
| STPA12 / SB450M | JIS (Japan) | Near | JIS G3462 STPA12 (0.5 Mo pipe) and G3103 SB450M (Mo boiler plate). |
| P265GH | EN (European) | Functional | Non-alloy grade below 400–450 °C; 16Mo3 is the step up. |
| 13CrMo4-5 | EN (European) | Functional | 1.7335 Cr-Mo grade for 500–570 °C and hydrogen service. |
| P355GH | EN (European) | Functional | Molybdenum-alloyed creep-resistant grade for service above 400 °C, where P355GH's guaranteed proof strength table ends. |
Identical, near and functional are defined once on the grade index; the reason column below says which limit differs in each case.
16Mo3 in GB/T (China)
- 16Mo — Identical GB/T 713 16Mo (formerly 16MnMoR-type usage); GB adopted the EN name for Mo pressure plate.
16Mo3 in ASTM / ASME
- A204 Gr. A — Near ASTM/ASME A204 Grade A (SA-204-A): C ≤ 0.18, Mo 0.45–0.60, yield 255 MPa, Rm 450–585 MPa. Higher Mo than 16Mo3; Grade B (yield 275) is closer on strength.
- A204 Gr. B — Near Yield 275 MPa, Rm 485–620 MPa, Mo 0.45–0.60.
- A335 P1 — Near Seamless pipe: C 0.10–0.20, Mo 0.44–0.65, yield 205 MPa — the ASME C-½Mo pipe grade corresponding to 16Mo3 tube (EN 10216-2).
- A182 F1 — Near C-½Mo forging grade (flanges, fittings).
16Mo3 in GOST (Russia/CIS)
- 15KhM / 16M — Near GOST 20072 / 5520 grade 16M (Mo 0.25–0.35) is close; 15KhM adds Cr.
16Mo3 in JIS (Japan)
- STPA12 / SB450M — Near JIS G3462 STPA12 (0.5 Mo pipe) and G3103 SB450M (Mo boiler plate).
16Mo3 in EN (European)
- P265GH — Functional Non-alloy grade below 400–450 °C; 16Mo3 is the step up.
- 13CrMo4-5 — Functional 1.7335 Cr-Mo grade for 500–570 °C and hydrogen service.
- P355GH — Functional Molybdenum-alloyed creep-resistant grade for service above 400 °C, where P355GH's guaranteed proof strength table ends.
Superseded names for 16Mo3
- 15Mo3 — DIN 17155 (withdrawn 1992): Same number 1.5415; still widely used name. Renamed 16Mo3 with the EN edition.
- 16Mo3 — DIN 17175 (tubes)
- 1503-243B / 1501-240 — BS 1501 / BS 3059: BS 3059 Part 2 grade 243 (tubes).
- 15D3 — NF A 36-205
Key data for 16Mo3
Full composition, mechanical properties by thickness, heat treatment and applications for 16Mo3 →
Verified against EN 10028-2:2017. Last checked: September 2026.