13CrMoSi5-5 boiler steel plate is the European standard pressure vessel steel, the implementation standard: EN10028. It is alloy special steel with high temperature function. 13CrMoSi5-5 steel plate is used in the manufacture of industrial boilers and in the field of petroleum machinery.
13CrMoSi5-5 steel finished product melting analysis, chemical elements, chemical composition:
| C | Si | Mn | P | S | Ni | Cr | Mo | Cu | N |
| ≤0.17 | 0.5-0.8 | 0.4-0.65 | ≤0.015 | ≤0.005 | ≤0.3 | 1-1.5 | 0.45-0.65 | ≤0.3 | ≤0.012 |
13CrMoSi5-5 boiler steel plate mechanical properties:
| Delivery status | Thickness | Mechanical properties | |
| Normalizing, tempering | ≤60mm | ReH(MPa) | ≥310 |
| Rm(MPa) | 510-690 | ||
| A(%) | ≥20 | ||
| Impact temperature | 0 | ||
| Akv(J) | ≥27 | ||
| Quenching + tempering | ≤60mm | ReH(MPa) | ≥400 |
| Rm(MPa) | 510-690 | ||
| A(%) | ≥20 | ||
| Impact temperature | -20 | ||
| Akv(J) | ≥27 | ||
| Normalizing, tempering | >60-100mm | ReH(MPa) | ≥300 |
| Rm(MPa) | 480-660 | ||
| A(%) | ≥20 | ||
| Impact temperature | 0 | ||
| Akv(J) | ≥27 | ||
| Quenching + tempering | >60-100mm | ReH(MPa) | ≥390 |
| Rm(MPa) | 500-680 | ||
| A(%) | ≥20 | ||
| Impact temperature | -20 | ||
| Akv(J) | ≥27 | ||
| >100-250mm | ReH(MPa) | ≥380 | |
| Rm(MPa) | 490-670 | ||
| A(%) | ≥20 | ||
| Impact temperature | -20 | ||
| Akv(J) | ≥27 | ||
13CrMoSi5-5 plate high temperature tensile and yield strength:
| Grade | Thickness mm | Minimum yield strength (Mpa) at the following temperature | ||||||||
| 50 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | ||
| 13CrMoSi5-5 Normalizing + tempering | ≤60 | 299 | 283 | 268 | 255 | 244 | 233 | 223 | 218 | 206 |
| 61-100 | 289 | 274 | 260 | 247 | 236 | 225 | 216 | 211 | 199 | |
| 13CrMoSi5-5 Quenching + tempering | ≤60 | 384 | 364 | 352 | 344 | 339 | 335 | 330 | 322 | 309 |
| 61-100 | 375 | 355 | 343 | 335 | 330 | 327 | 322 | 314 | 301 | |
| 101-250 | 365 | 346 | 334 | 326 | 322 | 318 | 314 | 306 | 293 | |
13CrMoSi5-5 boiler steel plate is generally delivered in normalized + tempered or quenched and tempered state with a thickness of less than 100mm, and delivered in a quenched and tempered state when it is greater than 100mm to 250mm.
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