20G boiler tubes

boiler tubes 1,Stander:GB ASTM DIN BS. 2,Grade:20# 45# Q345 16Mn ects. 3,USED:reheater tube, airwayand so on

1,Used:iti s a kind of seamless, mainly used to manufacture high-pressure and high pressure boiler superheater tubes, reheater tube, airway, the main steam pipes and so on.

2,Grade:20# 45#  Q345 16Mn ects.

3,Stander:GB ASTM DIN BS API ISO.

4,Kinds:High-pressure, medium pressure,low pressure,thick-walled,thin-walled,alloy,and so on.

5,Size:see from the following table

14*3	25*4	38*5.5	48*7	89*5	108*10	133*18	168*9.5
14*3.5		42*3	48.3*12.5	89*5.5	108*12	159*6	168*10
14*4	25*5.5	42*3.5	51*3	89*6	108*14	159*6.5	168*11
16*3	27*3.5	42*4	51*3.5	89*7	108*15	159*7	168*12
18*2	27*4	42*5	51*4	89*7.5	108*16	159*8	168*14
18*3	27*5	42*6	51*5	89*8	108*20	159*9.5	168*15
18*4	27*5.5	42*8	51*6	89*9	114*5	159*10	168*16
18*5	28*2.5	45*3	57*4	89*10	114*6	159*12	168*18
19*2	28*3	45*4	57*5	89*11	114*7	159*14	168*20
21*4	28*3.5	45*5	57*5.5	89*12	114*8	159*16	168*22
22*2.5	28*4	45*6	57*6	108*4.5	114*8.5	159*18	168*25
22*3	30*2.5	45*7	60*4	108*5	114*9	159*20	168*28
22*4	32*2.5	48*4	60*4	108*6	114*10	159*28	180*10
22*5	32*3	48*4.5	60*5	108*7	114*11	168*6	194*10
25*2.5	32*3.5	48*5	60*6	108*8	114*12	168*7	194*12
25*3	32*4	48*6	60*7	108*9	114*13	168*8	194*14

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20G boiler tubes