SM520B carbon steel plate is a low-alloy high-strength steel. The performance characteristic of SM520B steel plate is that its yield value decreases with the increase of the thickness of the material. SM520B carbon steel plate executive standard: Japanese standard JIS G 3106.
SM520B plate heat treatment delivery status: normalizing, tempering, quenching and tempering.
Mechanical properties of SM520B carbon steel plate:
| Thickness | Mechanical properties | |
| ≤5 | Re(MPa) | ≥365 |
| Rm(MPa) | 520-640 | |
| A(%) | ≥19 | |
| Impact temperature | 0 | |
| Longitudinal Akv(J) | ≥27 | |
| >5-16 | Re(MPa) | ≥365 |
| Rm(MPa) | 520-640 | |
| A(%) | ≥15 | |
| Impact temperature | 0 | |
| Longitudinal Akv(J) | ≥27 | |
| >16-40 | Re(MPa) | ≥355 |
| Rm(MPa) | 520-640 | |
| A(%) | ≥19 | |
| Impact temperature | 0 | |
| Longitudinal Akv(J) | ≥27 | |
| >40-75 | Re(MPa) | ≥335 |
| Rm(MPa) | 520-640 | |
| A(%) | ≥19 | |
| Impact temperature | 0 | |
| Longitudinal Akv(J) | ≥27 | |
| >75-100 | Re(MPa) | ≥325 |
| Rm(MPa) | 520-640 | |
| A(%) | ≥21 | |
| Impact temperature | 0 | |
| Longitudinal Akv(J) | ≥27 | |
SM520B carbon steel plate chemical element analysis:
| C | Si | Mn | P | S |
| ≤0.2 | ≤0.55 | ≤1.65 | ≤0.035 | ≤0.035 |
Composition Notes: Other alloying elements can be added. Ceq = C+Mn/6+Si/24+Ni/40+Cr/5+Mo/4+V/14 Pcm=C+Si/30+(Mn+Cu+Cr)/20+Ni/60+Mo /15+V/10+5B
SM520B carbon steel plate application:
SM520B steel plate is used in bridges, ships, vehicles, oil storage tanks, containers and other hot-rolled steels for welding components, especially for steels with good weldability.
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