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1、低温压力容器用低合金钢钢板(GB35311996)低温压力容器用低合金钢钢板(GB35311996)(1) 尺寸规格和允许偏差见表 5-155、表 5-156。(2) 牌号和化学成分见表 5-157。表5-155低温压力容器用低合金钢钢板的厚度允许偏差(mm)负偏宽度60075010001200150017001800200023002500260028003000320034003600公称厚度差7501000120010001700180020002300250026002800300032000340036003800正偏差6 7.50.450.550.600.600.750.750.7
2、50.807.5 100.750.750.850.850.900.900.901.001.151.151.1510 130.750.750.850.850.950.950.951.051.251.251.251.5513 250.750.750.850.951.151.351.351.551.651.7525 300.850.850.951.051.251.451.551.651.751.8530 34-O.250.951.051.051.151.351.551.651.751.952.0534 401.151.251.351.451.551.751.851.952.152.2540 501.
3、351.451.551.651.751.952 052.152.352.4550 601.651.751.851.952.052.152.152.252.352.5560 802.552.552.552.552.652.752.852.852.852.852.952.95801002.952.952.952.953.053.053.053.153.153.153.153.15注：钢板尺寸、外形及允许偏差应符合GB/T709的规定。表5-156低温压力容器用低合金钢钢板的厚度附加值(mm)宽度60075017001800200023002500260028003000320034003600公称
4、厚度750100018002000230025002600280030003200340036003800计算质量的厚度附加值67.50.100.150.180.180.250.250.250.287.5 100 250.250.300. 300 .320.320.320.380.450.450.4510 130.250.250.300.300.350.350.350.400.500 500.500. 6513 250.250.250.300.350.450.550 550.650.700.7525 300.300.300.350.400.500.600.650.700.750.8030 34
5、0.350.400.400.450.550. 650.700.750.850.903-4400.450.500.550.600.650.750.800.850.951.0040 500.550.600.650.700.750.850.900.951.051.1050 600.700.750.800.850.900 950 951.001.051.1560 801.151.151.151.151.201.251.301.301.301.301.351.35801001.351.351.351.351.401.401.401.451.451.451.451.45注：钢板按理论质量交货，用公称厚度加
6、上表中的厚度附加值作为计算质量的理论厚度。钢的密度为 7.85g/ cm3。表 5-157 低温压力容器用低合金钢钢板的牌号和化学成分牌号化学成分(质量分数)()CsiMnNiVNbAlsPS16MnlDR0.200.15 0.501.2 0 1.60三0.0150.0300.02515MnNiDR0.180.15 0.501.2 0 1.600.20 一 0.600.06三0.0150.0300.02509Mn2VDR0.120.15 0.501.40 1.800.02 0.06三0.0150.0300.02509MnNiDR0. 120.15 0.501.2 0 1.600.3 0 0.8
7、016 3647060029516MnDR36 6045058027521d=3a6010045058025561649063032515MnNiDR16 3647061030520d=3a36 6046060029061644057029009Mn2VDR16 3643056027022d=2a61644057030009MnNiDR16 3643056028023d=2a36 60430560260表5-159低温压力容器用低合金钢钢板的冲击试验牌号钢板厚度最低试验温度/C试样方向冲击吸收功AKv / J三16MnDR636-402436100-3015MnNiDR660-45横向09Mn
8、2VDR636-502709MnNiDR660-70注：1.表中所列的是10mmX10mmX55mm标准试样的冲击功，当采用7.5mmX10mmX55mm或5mmX10mmx55mm的小尺寸试样作冲击试验时，其试验结果， 别不小于表中规定值的75或50。2. 夏比(V型缺口)低温冲击功，按一组三个试样单值的算术平均值计算，允许其中一个试样单值低于规定值，但不得低于规定值的70%。3. 经供需双方协议，并在合同中注明，16MnDR钢板的低温冲击功可按不小于27J交货；15MnNiDR、09Mn2VDR、09MnNiDR钢板的低温冲击吸收功可 于 34J 交货。(5) 用途适用于制造一 20 一一 70r低温压力容器。
