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螺旋鋼管承受壓力計算公式

壓力=（壁厚*2*鋼管材質(zhì)抗拉強(qiáng)度）/（外徑*系數(shù)）

螺旋管鋼管壓力系數(shù)表示方法： 壓力P<7Mpa  系數(shù)S=8  7<鋼管壓力P<17.5   系數(shù)S=6 壓力P>17.5   系數(shù)S=4 

各種材質(zhì)的螺旋鋼管承受壓力表

稱外徑 mm	壁厚mm	靜水壓試驗壓力       單位：MPa  1MPa約等于10公斤
		SY/T5037-2000		GB/T9711.1-1997
		Q235B	16Mn	Q235B	L360
219	6/7/8	7.7/9.0/10.3	11.3/13.2/15.1	10.9/12.8/14.6	14.8/17.3/19.7
273	6/7/8	6.2/7.2/8.3	9.1/10.6/12.1	8.8/10.2/11.7	13.5/15.7/17.9
325	6/7/8	5.2/6.1/6.9	7.6/8.9/10.2	7.4/8.6/9.5	11.3/13.2/15.1
377	6/7/8/9	4.5/5.2/6.0/6.7	6.6/7.7/8.8/9.9	6.4/7.4/8.5/9.5	9.7/11.4/13.0/14.6
426	6/7/8/9/10	4.0/4.6/5.3/6.0/6.6	5.8/6.8/7.8/8.7/9.7	5.6/6.6/7.5/8.4/9.4	8.6/10.1/11.5/12.9/14.4
478	6/7/8/9/10	3.5/4.1/4.7/5.3/5.9	5.2/6.1/6.9/7.8/8.7	0.0/5.9/6.7/7.5/8.4	7.7/9.0/10.2/11.5/12.8
529	6/7/8/9/10	3.2/3.7/4.3/4.8/5.3	4.7/5.5/6.3/7.0/7.8	0.0/5.3/6.0/6.8/7.6	7.3/8.6/9.8/11.0/12.2
630	6/7/8/9/10	2.7/3.1/3.6/4.0/4.5	3.9/4.6/5.3/5.9/6.6	0.0/4.4/5.1/5.7/6.3	6.2/7.2/8.2/9.3/10.3
720	6/7/8/9/10	2.4/2.7/3.1/3.5/3.9	3.5/4.0/4.6/5.2/5.8	0.0/3.9/4.4/5.0/5.5	5.4/6.3/7.2/8.1/9.0
820	6/7/8/9/10/12	2.1/2.4/2.8/3.1/3.4/0.0	3.0/3.5/4.0/4.5/5.0/0.0	0.0/0.0/3.9/4.4/4.9/0.0	4.7/5.5/6.3/7.1/7.9
920	7/8/9/10/11/12	2.1/2.5/2.8/3.1/3.4/3.7	3.2/3.6/4.1/4.5/5.0/5.4	0.0/3.5/3.9/4.3/5.2	4.9/5.6/6.3/7.0/7.7/8.5
1020	7/8/9/10/11/12	1.9/2.2/2.5/2.8/3.0/3.3	2.8/3.2/3.7/4.1/4.5/4.9	0.0/3.1/3.5/3.9/4.7	3.8/4.4/5.1/5.7/6.4/7.0/7.6
1220	8/9/10/11/12/14	1.8/2.1/2.3/2.5/2.8/3.2	2.7/3.1/3.4/3.7/4.1/4.8	2.6/2.9/3.3/3.9/0.0