Boiler Pipe

Standard: GB3087-1999, ASTM A179, JIS G3454, ASTM A210, ASTM A192, ASTM A335, ASTM A333, ASTM A268, DIN 17175

Application: Used for manufacturing superheated pipelines, the steam pipe, boiling water tube, flue tube, small flue tube, etc.of low, mediam pressure boiler, the general industry boiler

Sizes:

Out diameter:10mm to 510mm
Wall thickness:1.5mm to 26mm

Out Diameter Torlerances

Standard	Out Diameter	Tolerance
GB3087	≤180	±1.0%(min: ±0.5mm)
GB5310	≤50	±0.5mm
GB5310	>50	±1.0%

Wall Thickness Tolerances

Standard	Wall Thickness(mm)	Tolerance
GB3087	3-20	+15%,12.5%
GB3087	>20	±12.5%
GB5310	<3.5	+15%,-10%
	3.5-20	+15%,-10%
	>20	±10%

Chemical composition and mechanical properties

Standard	Grade	Chemical composition(%)					Mechanical properties
Standard	Grade	C	Si	Mn	P	S	Tensile Strength(Mpa)	Yield Strength(Mpa)	Elongation(%)
DIN17175	St35.8	≤0.17	0.10-0.35	0.40-0.80	≤0.030	≤0.030	360-480	≥235	≥25
DIN17175	St45.8	≤0.21	0.10-0.35	0.40-1.20	≤0.030	≤0.030	410-530	≥255	≥21

Out Diameter

Wall Thickness (mm)

mm

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

35

73

●

76.1

●

82.5

●

88.9

●

101.6

●

114.3

●

127

●

139.7

●

152.4

●

159

●

168.3

●

177.8

●

193.7

●

203

●

219.1

●

244.5

●

273

●

298.5

●

323.5

●

339.7

●

355.6

●

406.4

●

457.2

●

473.1

●

508

●

530

●

558.8

●

609.6

●

630

●

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