... .2128.67Recovery%,≥41.1242.8043.5044.4447.6653.40 %,≤232221201815Stress relaxation%,≤505050454540T max ,≤250300350400500550P maxMpa,≤1.52.53.84.66.57 ... .9±0.3Compressibility%8.78-16.52Aging coefficient≥0.92creep relaxation%,≤50Resistance to mediaWater, seawater, steam, diluted acid & alkali, gases, alcohols ...