表7.0.1-6  PN40  钢制管法兰用材料最大允许工作压力（表压）																					(bar)
法兰材料	工作温度（℃）
类别号	20	50	100	150	200	250	300	350	375	400	425	450	475	500	510	520	530	540	550	575	600
1C1	40.0	40.0	40.0	39.1	37.9	36.0	33.5	31.9	31.1	27.0	22.4	15.6	10.5	6.8	—	—	—	—	—	—	—
1C2	40.0	40.0	40.0	40.0	40.0	40.0	37.2	35.6	34.2	27.0	22.4	15.6	10.5	6.8	—	—	—	—	—	—	—
1C3	40.0	40.0	39.0	38.0	36.9	35.1	32.6	31.1	30.1	25.4	21.2	15.4	10.5	6.8	—	—	—	—	—	—	—
1C4	36.8	36.1	33.5	32.6	31.6	30.1	27.9	26.7	26.3	23.7	20.1	15.2	10.5	6.8	—	—	—	—	—	—	—
1C9	40.0	40.0	40.0	40.0	40.0	40.0	38.9	37.6	36.9	36.2	35.4	34.5	27.4	19.9	17.1	15.1	13.1	11.3	9.8	6.8	4.7
1C10	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	39.7	39.0	38.3	29.2	22.3	20.2	18.0	15.7	13.6	12.0	8.1	5.3
1C13	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	39.8	38.9	37.8	36.4	24.1	16.6	14.7	13.3	11.8	10.4	9.3	6.9	4.8
1C14	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	35.0	23.7	20.2	17.8	15.5	13.3	11.7	8.1	5.5
2C1	36.8	35.4	30.3	27.5	25.5	24.1	22.7	21.9	21.6	21.2	20.6	20.3	19.9	19.6	19.5	19.4	19.2	19.0	18.4	16.2	13.1
2C2	36.8	35.6	31.3	28.5	26.4	24.7	23.4	22.6	22.1	21.8	21.6	21.4	21.2	21.0	21.0	20.9	20.8	20.8	20.7	19.1	15.5
2C3	30.6	29.6	25.5	23.1	21.2	19.8	18.7	17.8	17.5	17.1	16.8	16.5	—	—	—	—	—	—	—	—	—
2C4	36.8	35.9	32.7	30.3	28.4	26.7	25.3	24.2	23.7	23.4	23.1	22.8	22.6	22.4	22.3	22.2	22.1	22.0	21.8	19.9	15.8
2C5	36.8	36.1	33.4	31.3	29.5	27.9	26.6	25.6	25.2	25.1	24.9	24.8	24.7	24.6	24.6	24.6	24.6	24.3	23.5	20.4	15.4
12EO	35.6	33.8	31.3	29.3	27.6	25.8	24.2	23.1	—	22.2	—	21.7	—	21.2	—	—	—	—	20.4	—	15.3