GB713 18MnMoNbR steel is a alloy pressure vessel steel with specified elevated temperature properties. The grades of molybdenum steel (Mo steel) and chromium molybdenum steel (Cr-Mo steel) are denoted by the average carbon content, alloy element letter and the capital letter of Chinese characters “R” pressure vessel (Rong), for instance, 15CrMoR.
Standard: GB 713-2014
Main steel grades: q245r, Q345R, Q370R, 15CrMoR, 18MnMoNbR, 14Cr1MoR, 13MnNiMoR, 12Cr1MoVR
Use: steel plates for boilers and pressure vessels
GB713 18MnMoNbR steel chemical composition
|
Grade |
C |
Si |
Mn |
Cu |
Ni |
Cr |
Mo |
|
18MnMoNbR |
≤0.21 |
0.15-0.50 |
1.20-1.60 |
≤0.30 |
≤0.30 |
≤0.30 |
0.45-0.65 |
|
Nb |
V |
Ti |
Alt |
P |
S |
- |
|
0.025-0.05 |
- |
- |
- |
≤0.020 |
≤0.01 |
|
GB713 18MnMoNbR steel mechanical properties
|
Grade |
Thickness |
Tensile strength |
Yield strength |
Elongation % |
Impacting Test |
|
Temperature |
V |
|
18MnMoNbR |
30-60 |
570-720 |
400 |
18 |
0 |
47 |
|
60-100 |
570-720 |
390 |
18 |
Shanghai Katalor Enterprise is located in Pudong district of Shanghai city. It is only 30 minutes from Pudong International airport to our company. If you need GB713 18MnMoNbR steel plates, 18MnMoNbR hot rolled flats, or Q345R heavy plates, we sincerely invite you to visit factory. We will pick you up at the airport if you tell us your schedule.
