S460N — normalised fine-grain structural steel 460 MPa yield. For crane booms, bridges and offshore jackets requiring higher strength than S355.
S460N per EN 10025-3. Normalised fine-grain HSLA steel with min yield 460 MPa. Nb+V+Ti microalloying gives fine grain size without Q+T. Weld procedure qualification per EN ISO 15614-1 required. Standard for heavy-lift crane booms, bridge girders and offshore wind foundation monopiles where S355 is inadequate.
| Standard Body | Designation | Country / Region | Note |
|---|---|---|---|
| EN 10025-3 | S460N / S460NL | EU | |
| ASTM | A572 Grade 65 (nearest) | USA | |
| BS EN | S460N | UK | |
| JIS | SM570 (nearest) | Japan | |
| GOST | 14G2AF (nearest) | Russia | |
| GB | Q460C | China | |
| JUS | No direct equivalent | Yugoslavia |
| # | Standard Body | Designation | Country / Region | Note |
|---|---|---|---|---|
| 1 | EN 10025-3 | S460N / S460NL | EU | — |
| 2 | ASTM | A572 Grade 65 (nearest) | USA | — |
| 3 | BS EN | S460N | UK | — |
| 4 | JIS | SM570 (nearest) | Japan | — |
| 5 | GOST | 14G2AF (nearest) | Russia | — |
| 6 | GB | Q460C | China | — |
| 7 | JUS | No direct equivalent | Yugoslavia | — |
| Element | Symbol | Min % | Max % | Typical % |
|---|---|---|---|---|
| Carbon | C | — | 0.2000 | 0.1600 |
| Silicon | Si | — | 0.6000 | 0.3500 |
| Manganese | Mn | — | 1.7000 | 1.5500 |
| Niobium | Nb | — | 0.0600 | 0.0400 |
| Vanadium | V | — | 0.2000 | 0.1000 |
| Titanium | Ti | — | 0.0500 | 0.0250 |
| Condition | Code | Rm min MPa | Rm max MPa |
Re min MPa | Re max MPa |
A₅ min % |
Z % |
KV J |
HB min | HB max | HRC min | HRC max | E GPa |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Normalized t<=16mm | +N | 550 | 720 | 460 | — | 17.0 | — | 34.0 | — | — | — | — | 210.0 |
| Normalized 16<t<=40mm | +N | 540 | 710 | 440 | — | 17.0 | — | 34.0 | — | — | — | — | 210.0 |
| Coolant | Soluble oil 5-8% |
| Chip Formation | Medium chips |
| Tool Material | Carbide P15 |
| Surface Finish | Ra 1.6-3.2 um |