1.09MnNiDR Description: 09MnNiDR is used for the low temperature pressure vessel steel plate, 09MnNiDR is mainly used in petroleum, chemical equipment, CO2 absorption deethanizer tower, medium pressure flash tower, cooler, deethanizer, absorption tower, propane compressor casing, cryogenic tank manufacturing etc.. "D" is the first letter of the low phonetic alphabet, "R" is the first letter of the alphabet.
2.09MnNiDR delivery state: normalizing or normalizing + tempering, quenching and tempering, 70 low temperature impact.
3.09MnNiDR origin: Wugang, xinyu.
4.09MnNiDR chemical composition
Si Mn Ni V Nb C P
S
Less than 0.12 of 0.15 ~ 0.50 1.20-1.60 0.3-0.8 = 0.04 = 0.020 0.008
Note: spot the implementation of the national standard content range as mentioned above, the futures contract can be designed to control the content of chemical elements.
5.09MnNiDR mechanical properties
Test of the impact test of the steel plate thickness /mm tensile test
Tensile strength Rm, MPa yield strength elongation A/% temperature / C V type impact power 180 degrees
Not less than not less than b=2a
6~16 440~570 09MnNiDR 30023 -70 34 d=2a
430~560 >16~36 280
430~560 >36~60 270
420~550 >60~120 260
Remark: steel plate ultrasonic inspection standard according to GB/T2970 or JB/T4730.3 implementation, inspection standard and qualified level in the contract indicate