20MnMoNi55 and 20MnMoR steel plates are for boilers and pressure vessels. The delivery status of 20MnMoNi55 steel plate: normalizing + tempering, quenching and tempering (Q+T), mainly used for the production of methanol synthesis tower. The delivery status of 20MnMoR steel plate: normalized + tempered (NT), mainly used in the production of tube sheet of the reactor.
Smelting analysis of chemical composition of 20MnMoNi55 steel plate and 20MnMoR steel plate:
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo | Al | Cu | V | Ti | Sn | As | N |
| 22MnMoNi55 | 0.15-0.25 | 0.10-0.35 | 1.15-1.55 | ≤0.015 | ≤0.012 | ≤0.2 | 0.45-0.85 | 0.40-0.55 | 0.01-0.05 | ≤0.15 | ≤0.02 | ≤0.03 | ≤0.011 | ≤0.025 | ≤0.013 |
| 20MnMoR | 0.17-0.23 | 0.17-0.37 | 1.10-1.40 | ≤0.025 | ≤0.010 | ≤0.30 | ≤0.300 | 0.20-0.35 | ≤0.25 | ≤0.25 | ≤0.02 | ≤0.03 | ≤0.011 | ≤0.025 | ≤0.013 |
Note: (1) N is the finished product analysis, Sn is the provided value
(2) 20MnMo-R requires Ceq≤0.50%. Ceq=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15
Mechanical properties of 20MnMoNi55 steel plate and 20MnMoR steel plate:
| Grade | Delivery status | Room temperature stretch | 300 stretch | AKV | 180° | ||
| cold bending | |||||||
| Re(MPa) | Rm(MPa) | A(%) | Rp0.2（MPa） | (room temperature, J) | d=3.5a | ||
| 22MnMoNi55 | N+T | ≥450 | 570-740 | ≥18 | ≥390 | Average≥40 | In good condition |
| Q+T | 590-760 | Single value≥34 | |||||
| 20MnMoR | N+T | ≥370 | 530-680 | ≥18 | - | ≥34 | - |
Just like you, 70% customers choose long-term cooperation with BBN steel not only for our good product and service quality, good reputation in the international market, but also for our experienced one-stop raw material supply and further steel processing!
Henan BEBON Iron&Steel co.,ltd.
Language
Online Consultation
